CN113162477B - Liquid drop energy collecting device and method based on thin film interdigital electrode - Google Patents
Liquid drop energy collecting device and method based on thin film interdigital electrode Download PDFInfo
- Publication number
- CN113162477B CN113162477B CN202110159905.3A CN202110159905A CN113162477B CN 113162477 B CN113162477 B CN 113162477B CN 202110159905 A CN202110159905 A CN 202110159905A CN 113162477 B CN113162477 B CN 113162477B
- Authority
- CN
- China
- Prior art keywords
- electrode
- thin film
- interdigital electrode
- droplet
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N3/00—Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom
Abstract
The device comprises a substrate, wherein the substrate is adhered with a thin-film interdigital electrode, the thin-film interdigital electrode is divided into a left electrode and a right electrode, an insulating layer is adhered on the thin-film interdigital electrode, a Teflon film is adhered on the thin-film interdigital electrode and the insulating layer, and an upper strip electrode and a lower strip electrode are tightly adhered on the Teflon film. The kinetic energy of the dripping of the collected liquid drops is converted into the alternating current with obvious peak value in the processes of dripping, impacting and sliding of single liquid drops.
Description
Technical Field
The invention relates to the technical field of energy conversion and collection, in particular to a droplet energy collection device and method based on a thin film interdigital electrode.
Background
In the prior art, paper a droplet-based electricity generator with high instantaneous power density describes a method of energy harvesting of droplets by which electrical energy is output between an aluminum elongate electrode and an indium tin oxide film underneath the teflon film by the droplets striking the surface of the teflon film and sliding across the aluminum elongate electrode. The device in the paper has only one complete indium tin oxide film between the teflon film and the substrate, and the output signal is very weak compared with the forward signal although the output signal is alternating current.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a device and a method for collecting droplet energy based on a thin film interdigital electrode, which are used for collecting kinetic energy of droplet falling and converting energy in the processes of single droplet falling, impact and sliding into alternating current output with obvious peak value.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the liquid drop energy collecting device based on the film interdigital electrode comprises a substrate 1, wherein the film interdigital electrode is adhered to the substrate 1, the film interdigital electrode comprises a left electrode 2 and a right electrode 3, an insulating layer 4 is adhered to the area below the center line of the film interdigital electrode, a Teflon film 5 is adhered to the area above the center line of the film interdigital electrode and the insulating layer 4, and an upper strip electrode 6 and a lower strip electrode 7 are tightly adhered to the area, corresponding to the insulating layer 4, of the Teflon film 5.
The substrate 1 is made of insulating materials such as glass, silicon dioxide sheets or silicon nitride sheets.
The thin film interdigital electrode (comprising the left electrode 2 and the right electrode 3) is made of conductive materials such as copper (Cu), aluminum (Al) or ITO, and is plated on the substrate 1 by a vapor deposition method, a sputtering method or the like.
The insulating layer 4 is made of insulating materials such as PI adhesive tape, and is attached to the thin film interdigital electrode, and the middle of the substrate 1 is biased to the lower side.
The Teflon film 5 is formed by naturally air-drying Teflon (Teflon) solution which is dripped on the film interdigital electrode (comprising the left electrode 2 and the right electrode 3) and the insulating layer 4.
The upper strip electrode 6 is made of conductive materials such as stainless steel, has the width of 1.5 mm and is tightly attached to the Teflon film 5 in the area of the insulating layer 4.
The lower strip electrode 7 is made of conductive materials such as stainless steel and the like, has the width of 1.5 mm and is tightly attached to the Teflon film 5 in the area of the insulating layer 4.
The upper strip electrode 6 and the lower strip electrode 7 are both positioned in the region of the insulating layer 4, the upper strip electrode 6 is close to the upper edge of the insulating layer 4, the lower strip electrode 7 is close to the lower edge of the insulating layer 4 and are not contacted with each other, and the distance can be adjusted within the width of the insulating layer 4.
And gaps are formed between the upper strip electrode 6 and the lower strip electrode 7 and the Teflon film 5, and the Teflon solution drops are adopted to cover the gaps and naturally air-dried.
The collection device was baked on a hot plate at 150℃for 30 minutes.
The electrode area of the thin film interdigital electrode is smaller than the substrate 1 and is led to the edge of the substrate 1 by a shorter lead.
The left electrode 2 and the right electrode 3 are respectively composed of a main line and a plurality of strip electrodes (shown in figure 1) perpendicular to the main line, the left electrode and the right electrode are coplanar, the strip electrodes connected with the left electrode 2 and the right electrode 3 are sequentially staggered and crossed, the width of the strip electrodes and the electrode spacing are in the micron level, the width of the strip electrodes of the left electrode and the right electrode can be unequal, and the electrode spacing can be unequal.
The thin film interdigital electrode provides two electrodes on one plane, and the width of the electrodes can be adjusted in the manufacturing process, so that the area of the electrodes can be adjusted.
A method for using a liquid drop energy collecting device based on a thin film interdigital electrode comprises the steps of obliquely placing the device, wiring according to a method that a left electrode 2 (or a left electrode 3) on the thin film interdigital electrode is in short circuit with an upper strip electrode 6, and a lower strip electrode 7 and a right electrode 3 (or a left electrode 2) of the thin film interdigital electrode are in short circuit, dropping liquid drops from a certain height above the device, impacting the upper half part of the thin film interdigital electrode, then spreading the liquid drops, contacting the strip electrode 6, then contacting the strip electrode 7, then shrinking and slipping the liquid drops, and opening the test instrument to respectively measure electric charges, electric currents and voltage signals in the whole process of dropping the liquid drops to final slipping.
The invention has the beneficial effects that:
the invention can collect the kinetic energy of the liquid drop falling. During the single drop landing, impingement and sliding, a distinct electrical signal is measured in one direction, followed by a reverse weak electrical signal, which is enhanced by the presence of the two electrodes. Since the electrode area is adjustable, the peak value of the inverted output signal can also be changed.
Drawings
Fig. 1 is a schematic view of the construction of the components of the present invention.
Fig. 2 is a schematic structural view of the present invention.
Fig. 3 is a front view and a side view of the present invention.
Fig. 4 is a schematic view of the installation of the present invention during testing.
FIG. 5 is a graph showing the charge change between the left electrode of the thin film interdigital electrode and the upper stainless steel strip electrode as the droplet impacts and slides down, as the energy of the droplet is collected in an embodiment of the present invention.
FIG. 6 is a graph showing the current change between the left electrode of the thin film interdigital electrode and the upper stainless steel strip electrode as the droplet impacts and slides down, as the energy of the droplet is collected in an embodiment of the present invention.
FIG. 7 is a graph showing the voltage change between the left electrode of the thin film interdigital electrode and the upper stainless steel strip electrode as the droplet impacts and slides down, as the energy of the droplet is collected in an embodiment of the present invention.
Fig. 8 shows a current change curve between the left electrode of the thin film interdigital electrode and the upper stainless steel strip electrode when the liquid drop hits and slides down, wherein the wiring method is "the left electrode 2 of the thin film interdigital electrode-the test instrument-the upper strip electrode 6, and the lower strip electrode 7 and the right electrode 3 of the thin film interdigital electrode are disconnected".
Fig. 9 shows a voltage change curve between the left electrode of the thin film interdigital electrode and the upper stainless steel strip electrode when the liquid drop hits and slides down, wherein the wiring method is "the left electrode 2 of the thin film interdigital electrode-the test instrument-the upper strip electrode 6, and the lower strip electrode 7 and the right electrode 3 of the thin film interdigital electrode are disconnected".
In fig. 1 and 3: 1. a substrate; 2. a left electrode of the thin film interdigital electrode; 3. a right electrode of the thin film interdigital electrode; 4. an insulating layer; 5. a teflon film; 6. an upper strip electrode; 7. and a lower strip electrode.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
The invention provides a droplet energy collecting device capable of improving output power, which is composed of a substrate 1, a film interdigital electrode left electrode 2, a film interdigital electrode right electrode 3, an insulating layer 4, a Teflon film 5, an upper strip electrode 6 and a lower strip electrode 7 as shown in figure 1. And the electrode area of the thin film interdigital electrode is smaller than that of the substrate 1, and the thin film interdigital electrode is led to the edge of the substrate 1 by a shorter lead so as to facilitate wiring, thereby preventing liquid drops from adhering to the edge of the substrate 1 to influence the operation of the device. The terminals of the upper strip electrode 6 and the lower strip electrode 7 are respectively positioned on the edge side of the substrate 1.
The left electrode 2 and the right electrode 3 of the thin film interdigital electrode are adhered to the substrate 1, the insulating layer 4 is adhered to the thin film interdigital electrode, the Teflon film 5 is adhered to the thin film interdigital electrode and the insulating layer 4, the upper strip electrode 6 is adhered to the Teflon film 5 in the area of the insulating layer 4, and the lower strip electrode 7 is adhered to the Teflon film 5 in the area of the insulating layer 4. Fig. 2 shows the device, and the specific structure is shown in fig. 3.
The energy harvesting device has a variety of wiring methods:
the left electrode 2 of the thin film interdigital electrode, the test instrument, the upper strip electrode 6, and the lower strip electrode 7 and the right electrode 3 of the thin film interdigital electrode are disconnected.
The left electrode 2 of the thin film interdigital electrode, the test instrument, the upper strip electrode 6, and the lower strip electrode 7 and the right electrode 3 of the thin film interdigital electrode are short-circuited.
The left electrode 2 of the thin film interdigital electrode, the test instrument, the lower strip electrode 7, and the upper strip electrode 6 and the right electrode 3 of the thin film interdigital electrode are disconnected.
The left electrode 2 of the thin film interdigital electrode, the test instrument, the lower strip electrode 7, and the upper strip electrode 6 and the right electrode 3 of the thin film interdigital electrode are short-circuited.
The right electrode 3 of the thin film interdigital electrode, the test instrument, the upper strip electrode 6, and the lower strip electrode 7 and the left electrode 2 of the thin film interdigital electrode are disconnected.
The right electrode 3 of the thin film interdigital electrode, the test instrument, the upper strip electrode 6, and the lower strip electrode 7 and the left electrode 2 of the thin film interdigital electrode are short-circuited.
The right electrode 3 of the thin film interdigital electrode, the test instrument, the lower strip electrode 7, and the upper strip electrode 6 and the left electrode 2 of the thin film interdigital electrode are disconnected.
The right electrode 3 of the thin film interdigital electrode, the test instrument, the lower strip electrode 7, and the upper strip electrode 6 and the left electrode 2 of the thin film interdigital electrode are short-circuited.
The wiring end of the left electrode 2 of the thin film interdigital electrode is connected with the wiring end of the right electrode 3 of the thin film interdigital electrode, namely the upper strip electrode 6 of the test instrument.
The left electrode 2 of the thin film interdigital electrode, the test instrument, the right electrode 3 of the thin film interdigital electrode, and the upper strip electrode 6 and the lower strip electrode 7 are disconnected.
In use, as shown in fig. 4, the energy harvesting device is held in an inclined position, and drops drop from above the energy harvesting device, with the impact point being located in the upper region of the centerline of the teflon membrane 5 on the substrate 1.
In this embodiment, the substrate 1 is glass, the thin-film interdigital electrode is a copper thin film, the width of the thin-film interdigital electrode is 400 micrometers, the electrode spacing is 80 micrometers, the insulating layer 4 is a Polyimide (PI) adhesive tape, the Teflon thin film 5 is formed by natural air drying after being covered with Teflon solution drops, and the upper strip electrode 6 and the lower strip electrode 7 are all cut stainless steel strips with the width of 1.5 millimeters.
In this embodiment, the wiring mode is: the left electrode 2 of the thin film interdigital electrode, the test instrument, the upper strip electrode 6, and the lower strip electrode 7 and the right electrode 3 of the thin film interdigital electrode are short-circuited.
In this embodiment, when the droplet hits and slides down, the wiring method measures the charge change as shown in fig. 5, the current change as shown in fig. 6, and the voltage change as shown in fig. 7.
In this embodiment, the wiring mode is changed to "the thin-film interdigital electrode left electrode 2-test instrument-the upper strip electrode 6, and after the lower strip electrode 7 and the thin-film interdigital electrode right electrode 3 are disconnected", when the droplet impacts and slides down, the current change is measured as shown in fig. 8, and the voltage change is measured as shown in fig. 9.
Comparing fig. 6 and 8, the first peak is in the same direction, the peak in fig. 6 is slightly larger than the peak in fig. 8, the second peak appears in fig. 6, the value is about 1/3 of the first peak, and no obvious second peak appears in fig. 8.
In contrast to fig. 7 and 9, the first peak is co-directional, the peak in fig. 7 is slightly greater than the peak in fig. 9, the second peak occurs in fig. 7, the value is about 1/3 of the first peak, and no distinct second peak occurs in fig. 9.
The two-point comparison verifies that the device can enhance reverse output signals and output obvious alternating current signals when the device is connected in a wiring way of 'the left electrode 2 of the thin film interdigital electrode, the test instrument, the upper strip electrode 6, and the lower strip electrode 7 and the right electrode 3 of the thin film interdigital electrode are in short circuit'.
Claims (9)
1. The liquid drop energy collecting device based on the film interdigital electrode is characterized by comprising a substrate (1), wherein the film interdigital electrode is adhered to the substrate (1), the film interdigital electrode is divided into a left electrode (2) and a right electrode (3), an insulating layer (4) is adhered to a region below a midline of the film interdigital electrode, a Teflon film (5) is adhered to a region above the midline of the film interdigital electrode and the insulating layer (4), and an upper strip electrode (6) and a lower strip electrode (7) are tightly adhered to a region, corresponding to the insulating layer 4, of the Teflon film (5);
the upper strip electrode (6) is made of stainless steel conductive material, has the width of 1.5 mm and is tightly attached to the Teflon film (5) in the area of the insulating layer (4);
the upper strip electrode (6) and the lower strip electrode (7) are both positioned in the area of the insulating layer (4), the upper strip electrode (6) is close to the upper edge of the insulating layer (4), the lower strip electrode (7) is close to the lower edge of the insulating layer (4) and are not contacted with each other, and the distance can be adjusted within the width of the insulating layer (4);
and gaps are formed between the upper strip electrode (6) and the lower strip electrode (7) and the Teflon film (5), and the Teflon solution drops are adopted to cover the gaps and naturally air-dried.
2. A droplet energy harvesting device based on thin film interdigitated electrodes as claimed in claim 1, characterized in that the substrate (1) is glass, silicon dioxide or silicon nitride;
the thin film interdigital electrode is copper, aluminum or indium tin oxide, and is plated on the substrate (1) by an evaporation or sputtering method;
the insulating layer (4) is made of PI adhesive tape insulating material and is attached to the thin film interdigital electrode, and the middle of the substrate (1) is biased to the lower side.
3. The droplet energy collecting device based on the thin film interdigital electrode according to claim 1, wherein the Teflon thin film (5) is a thin film formed by naturally air-drying a Teflon (Teflon) solution coated on the thin film interdigital electrode and the insulating layer (4).
4. The droplet energy collecting device based on the thin film interdigital electrode according to claim 1, wherein the lower strip electrode (7) is made of stainless steel conductive material, has a width of 1.5 mm, and is tightly attached to the teflon thin film (5) in the area of the insulating layer (4).
5. A thin film interdigitated electrode based droplet energy collection device as claimed in claim 1, wherein the collection device is placed at 150 o And C baking on a heating plate for 30 minutes.
6. A thin film interdigitated electrode based droplet energy collection device according to claim 1, characterized in that the electrode area of the thin film interdigitated electrode is smaller than the substrate (1) and is led to the edge of the substrate (1) by a shorter lead.
7. The liquid drop energy collecting device based on the thin film interdigital electrode according to claim 1, wherein the thin film interdigital electrode is divided into a left electrode (2) and a right electrode (3), the left electrode (2) and the right electrode (3) are respectively composed of a main line and a plurality of strip electrodes perpendicular to the main line, the left electrode and the right electrode are coplanar, the strip electrodes connected with the left electrode and the right electrode are sequentially staggered and crossed, the width of the strip electrodes and the electrode spacing are in the micron level, the width of the strip electrodes of the left electrode and the right electrode can be unequal, and the electrode spacing can be unequal;
the thin film interdigital electrode provides two electrodes on one plane, and the width of the electrodes can be adjusted in the manufacturing process, so that the area of the electrodes can be adjusted.
8. The method for using the device for collecting the droplet energy based on the thin film interdigital electrode according to the claim 1 is characterized in that the device is obliquely placed, the test instrument is turned on to measure the charge, the current and the voltage signals respectively according to the method of shorting the left electrode (2) on the thin film interdigital electrode, the test instrument and the upper strip electrode (6) and simultaneously shorting the lower strip electrode (7) and the right electrode (3) of the thin film interdigital electrode, the droplet drops from a certain height above the device, impacts the upper half part of the thin film interdigital electrode, then the droplet spreads and contacts the strip electrode (6) and then contacts the strip electrode (7), then the droplet contracts and slides, and the test instrument is turned on to measure the charge, the current and the voltage signals respectively in the whole process of the droplet dropping to the final sliding.
9. The method for using the device for collecting the droplet energy based on the thin film interdigital electrode according to the claim 1 is characterized in that the device is obliquely placed, the method of shorting the right electrode (3) on the thin film interdigital electrode, the test instrument and the upper strip electrode (6) is adopted, meanwhile, the lower strip electrode (7) and the left electrode (2) of the thin film interdigital electrode are connected, the droplet is dropped from a certain height above the device, the upper half part of the thin film interdigital electrode is impacted, then the droplet is spread, and then the strip electrode (6) is contacted, then the strip electrode (7) is contacted, the droplet is contracted and slipped, and the test instrument is opened to respectively measure the charge, the current and the voltage signals in the whole process of the droplet dropping to final slipping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110159905.3A CN113162477B (en) | 2021-02-05 | 2021-02-05 | Liquid drop energy collecting device and method based on thin film interdigital electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110159905.3A CN113162477B (en) | 2021-02-05 | 2021-02-05 | Liquid drop energy collecting device and method based on thin film interdigital electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113162477A CN113162477A (en) | 2021-07-23 |
| CN113162477B true CN113162477B (en) | 2023-07-18 |
Family
ID=76882914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110159905.3A Active CN113162477B (en) | 2021-02-05 | 2021-02-05 | Liquid drop energy collecting device and method based on thin film interdigital electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113162477B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013170651A1 (en) * | 2012-05-15 | 2013-11-21 | 纳米新能源（唐山）有限责任公司 | Friction generator and friction generator unit |
| CN111106202A (en) * | 2020-01-13 | 2020-05-05 | 吉林大学 | Photoelectric detector based on magnesium nitride film and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734565B (en) * | 2013-12-20 | 2018-02-13 | 北京纳米能源与系统研究所 | A kind of generator and electricity-generating method for collecting working fluid energy |
| CN107482953A (en) * | 2017-09-16 | 2017-12-15 | 邱丹丹 | The self-driven energy conversion device of drop and preparation method based on wetting gradient surface |
| KR101885856B1 (en) * | 2018-05-18 | 2018-08-06 | 권병수 | Method of Ion Energy Generation Using Salts of Seawater |
| CN108922791B (en) * | 2018-06-01 | 2020-07-14 | 中国科学院上海硅酸盐研究所 | Interdigital electrode with nano-texture surface and preparation method and application thereof |
| CN112072946A (en) * | 2020-08-28 | 2020-12-11 | 广东工业大学 | Liquid drop power generation device and using method thereof |
-
2021
- 2021-02-05 CN CN202110159905.3A patent/CN113162477B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013170651A1 (en) * | 2012-05-15 | 2013-11-21 | 纳米新能源（唐山）有限责任公司 | Friction generator and friction generator unit |
| CN111106202A (en) * | 2020-01-13 | 2020-05-05 | 吉林大学 | Photoelectric detector based on magnesium nitride film and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113162477A (en) | 2021-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8691694B2 (en) | Solderless back contact solar cell module assembly process | |
| US4042418A (en) | Photovoltaic device and method of making same | |
| EP2159846A1 (en) | Thin film solar cell and photovoltaic string assembly | |
| TWI476419B (en) | An output measuring device and a measuring method for a solar cell unit | |
| JPH06342924A (en) | Thin-film solar cell and manufacture thereof | |
| CA2591452A1 (en) | Integrated current collector and electrical component plate for a fuel cell stack | |
| CN103797627B (en) | There is the manufacture method of the device of battery, before electrical connection battery, there is the test to battery operation | |
| KR20140080493A (en) | Measurement jig for solar battery and method for measuring output of solar battery cell | |
| US20120305048A1 (en) | Solar battery cell, solar battery module and method of making solar battery module | |
| CN113162477B (en) | Liquid drop energy collecting device and method based on thin film interdigital electrode | |
| US9370109B2 (en) | Sensor device and method for manufacture | |
| CN112737396B (en) | Liquid drop energy collecting device and method capable of improving output power | |
| Devoto et al. | Contact resistivity of ECA bonded joints | |
| JPH0225079A (en) | Amorphous semiconductor solar cell | |
| CN207801867U (en) | A kind of solar cell electric performance testing device | |
| CN114143949B (en) | Flexible hydrophobic barrier medium plasma anti-icing device and anti-icing method | |
| CN111247643A (en) | Photoelectric conversion module and method for manufacturing photoelectric conversion module | |
| US20130249580A1 (en) | Apparatus and method for evaluating characteristics of a photovoltaic device | |
| CN107911080B (en) | Testing device for electrical performance of solar cell | |
| CN111521885B (en) | Non-interference electrical equipment transient electric field distribution measuring method | |
| CN108133898A (en) | A kind of solar cell electric performance testing device | |
| JPS5946426B2 (en) | How to manufacture solar cells | |
| CN114885483A (en) | Semiconductor discharge processing device and processing method thereof | |
| CN111247642A (en) | Photoelectric conversion module and method for manufacturing photoelectric conversion module | |
| CN212848441U (en) | Solar cell module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |