CN104078245A - Nanowire array device capable of simultaneously achieving photoelectric conversion and optical energy storage and manufacturing method and application thereof - Google Patents
Nanowire array device capable of simultaneously achieving photoelectric conversion and optical energy storage and manufacturing method and application thereof Download PDFInfo
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- CN104078245A CN104078245A CN201410288386.0A CN201410288386A CN104078245A CN 104078245 A CN104078245 A CN 104078245A CN 201410288386 A CN201410288386 A CN 201410288386A CN 104078245 A CN104078245 A CN 104078245A
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Abstract
The invention belongs to the technical field of solar cells, and particularly relates to a nanowire array device capable of simultaneously achieving photoelectric conversion and optical energy storage and a manufacturing method and application thereof. The nanowire array device comprises a photoanode, a photocathode and an electrolyte, wherein the photoanode is made of a composite capacitance material on a photoelectric material the photoanode and the photocathode are connected in a short circuit mode and then placed in the electrolyte. For example, NiO nano pieces are loaded on a TiO2 nanowire array to serve as the photoanode, a silicon nanowire array serves as the photocathode, H+ irons are reduced by photoproduction electrons on silicon nanowires to generate H2, NiO on TiO2 nanowires are oxidized to be NiOOH through photoproduction holes, and energy of the photoproduction holes is stored to be chemical energy of NiOOH, so that photoelectric conversion and optical energy storage are simultaneously achieved, and the use ratio of light by solar cells is increased. Glucose is further oxidized into glucosone through the NiOOH, and the chemical energy stored in the NiOOH serves as a self-driven chemical sensor to be released. According to the nanowire array device, raw materials are wide in source, the manufacturing method is simple, and the nanowire array device is environmentally friendly and low in price.
Description
Technical field
The invention belongs to technical field of solar batteries, be specifically related to a kind of nano-wire array device and its preparation method and application.
Background technology
Energy crisis is badly in need of the significant problem solving as this century, development new energy technology is the key that solves energy crisis, and the utilization of solar energy is as important a member in new forms of energy.General using solar energy resources can be divided into two large classes: a class is solar cell, and solar energy is converted to utilization of power, but because the electric energy of solar cell needs to use in time, can not long term storage, thereby can there is in actual use the problems such as grid-connected, energy storage; Another kind of is photochemical cell, and solar energy is converted to chemical energy utilization, and as decomposing water with solar energy hydrogen manufacturing, this kind of energy, without further conversion, can directly store long-term use.
Traditional photolysis water hydrogen gas, to use solar light irradiation semi-conducting material generation light induced electron and hole by water decomposition, light induced electron reductive water produces hydrogen, photohole oxidize water produces oxygen, hydrogen is important energy substance, but oxygen is few of practical value on the energy, thereby the energy of the photohole that comprises of this part is wasted.The present invention utilizes load fake capacitance material on semiconductor optical anode, by the energy storage of photohole in capacitor.And the capacitive energy that can this part be stored by capacitor discharge and chemical sensor further discharges.The present invention can effectively improve the energy utilization efficiency of photodissociation water, and making step is simple, convenient utilization on a large scale.
Summary of the invention
The object of this invention is to provide a kind of solar energy that utilizes and realize opto-electronic conversion, luminous energy storage and multifunctional nano line array utilizing and its preparation method and application simultaneously.
The nanometer linear array device of realizing opto-electronic conversion, luminous energy storage simultaneously and utilizing provided by the invention, comprising: a light anode that complex capacitance material is made on photoelectric material; One photocathode; Electrolyte; Short circuit is connected and is placed in electrolyte above-mentioned smooth anode with photocathode.
The preparation method of the nanometer linear array device of realizing opto-electronic conversion, luminous energy storage simultaneously and utilizing provided by the invention, concrete steps are:
(1) complex capacitance material on photoelectric material, as light anode;
(2) provide a photocathode;
(3) by above-mentioned smooth anode, short circuit is connected and is placed in electrolyte with photocathode.
With illumination, to nano-wire array capacitor element charging, in charging process, add variable concentrations chemical detection thing solution, by curent change reactive chemistry, detect substrate concentration.
In discharge process, add variable concentrations chemical detection thing solution, by light anode potential reacting condition chemical detection substrate concentration.
Described photoelectric material is TiO
2, ZnO, WO
3, Fe
2o
3in one or more.
Described capacitance material is NiO, Ni (OH)
2, Co
3o
4, CoO, Co (OH)
2, MnO
x, Mn (OH)
2in one or more.
Described photocathode photoelectric material is Si, Cu
2one or more in O, GaP, InP.
Described electrolyte is Na
2sO
4, NaCl, K
2sO
4a kind of.
Described chemical detection thing is glucose, H
2o
2, H
2s's is a kind of.
Nano-wire array device of the present invention can utilize solar photolysis water hydrogen, and the chemical energy using the hole energy of light anode as fake capacitance capacitor stores simultaneously, then can will change capacitor energy by capacitor discharge or chemical sensor and discharge.
Nano-wire array device of the present invention can be applicable to solar cell and chemical sensor.For example, the titanium dioxide combined oxidation nickel nano-wire array of take is light anode, and silicon nanowire array is photocathode, and the metabisulfite solution of 0.5 M is reaction solution, and irradiating luminous intensity is a sunlight, and irradiating sectional area is to regulate according to the size of work electrode.
The present invention is by depositing fake capacitance material on photoelectric material, realize efficient photolysis water hydrogen simultaneously by the energy storage of photohole in fake capacitance capacitor.It is simple that this nano-wire array device has manufacture craft, and cost is low, good stability, the high also environment amenable feature of electricity conversion, be applicable to large area and produce, upper significant for solar cell research, at new energy field, also there is good application prospect.
Accompanying drawing explanation
Fig. 1: a – c is TiO
2the electromicroscopic photograph of load NiO nanometer sheet on nano-wire array; D is that f figure is the electromicroscopic photograph of supported platinum nano particle on silicon nanowire array.
Fig. 2: be pure TiO
2nano-wire array, pure NiO nanometer sheet, TiO
2on nano-wire array, load nickel oxide nano sheet changes the variation of open circuit potential with light application time.
Fig. 3: be followed successively by pure TiO
2nano-wire array, TiO
2nano-wire array load NiO nanometer sheet light anode, this light anode illumination charge after electricity the photo of state after state, this light anode discharge, and light anode blackening after having charged, returns to again primitive color after electric discharge.
Fig. 4: a – b uses principle and the performance of light current detecting concentration of glucose while being illumination charging.
Fig. 5: a – b detects principle and the performance of concentration of glucose with open circuit potential under details in a play not acted out on stage, but told through dialogues discharging condition.
Fig. 6: the present invention for detection of system diagram.
Embodiment
Below, by following examples, the invention will be further described, and it will contribute to understand the present invention, but not limit content of the present invention.
By at TiO
2on nano-wire array, load NiO nanometer sheet, as light anode, is usingd silicon nanowire array as photocathode, and light induced electron reduces H in silicon nanometer
+produce H
2, photohole is by TiO
2niO on nano wire is oxidized to NiOOH, the energy storage of photohole is become to the chemical energy of NiOOH, has realized opto-electronic conversion and luminous energy storage simultaneously, has improved the utilization ratio of solar cell to light.Further by NiOOH, glucose oxidase is become to grape saccharon, the chemical energy storing in NiOOH is discharged as a self-driven chemical sensor.Particularly:
First by hydro thermal method, in FTO substrate, prepare TiO
2nano-wire array, then use chemical bath deposition method at TiO
2on nano-wire array, deposit NiO nanometer sheet.After reaction finishes, substrate is taken out and cleans and dry up.Then, substrate is placed in tube furnace under argon gas under 200 ℃ of conditions to roasting 2 hours.Finally, under argon shield, be down to room temperature.Resulting TiO
2on nano-wire array, load NiO nanometer sheet is as light anode, as shown in Fig. 1 a-c.
By metal auxiliary etch legal system for silicon nanowire array as photocathode, then deposit Pt nanoparticle as producing hydrogen catalyst, as shown in Fig. 1 b-d.
By above-mentioned smooth anode, short circuit is connected and is placed in electrolyte with photocathode, with illumination, to capacitor, charges, and the open circuit potential of different light time light anode changes as shown in Figure 2.
Fig. 3 is followed successively by pure TiO
2nano-wire array, TiO
2nano-wire array load NiO nanometer sheet light anode, this light anode illumination charge after electricity the photo of state after state, this light anode discharge, and light anode blackening after having charged, returns to again primitive color after electric discharge.
In charging process, add variable concentrations chemical detection thing solution, by curent change reactive chemistry, detect substrate concentration, as Fig. 4 a, shown in b.
In discharge process, add variable concentrations chemical detection thing solution, by light anode potential reacting condition chemical detection substrate concentration, Fig. 5 a, shown in b.
Claims (8)
1. the nano-wire array device that photoelectric conversion and luminous energy are stored simultaneously, is characterized in that comprising: a light anode that complex capacitance material is made on photoelectric material; One photocathode; Electrolyte; Short circuit is connected and is placed in electrolyte above-mentioned smooth anode with photocathode.
2. nano-wire array device according to claim 1, is characterized in that the photoelectric material in described light anode is TiO
2, ZnO, WO
3, Fe
2o
3in one or more.
3. nano-wire array device according to claim 1 and 2, is characterized in that described capacitance material is NiO, Ni (OH)
2, Co
3o
4, CoO, Co (OH)
2, MnO
x, Mn (OH)
2in one or more.
4. nano-wire array device according to claim 3, is characterized in that described photocathode photoelectric material is Si, Cu
2one or more in O, GaP, InP.
5. nano-wire array device according to claim 4, is characterized in that described electrolyte is Na
2sO
4, NaCl, K
2sO
4a kind of.
6. the preparation method of the nano-wire array device that photoelectric conversion simultaneously as claimed in claim 1 and luminous energy are stored, is characterized in that concrete steps are:
(1) complex capacitance material on photoelectric material, as light anode;
(2) provide a photocathode;
(3) by above-mentioned smooth anode, short circuit is connected and is placed in electrolyte with photocathode.
7. the application of the nano-wire array device of photoelectric conversion simultaneously as claimed in claim 1 and luminous energy storage, it is characterized in that: with illumination, to nano-wire array device, charge, in charging process, add variable concentrations chemical detection thing solution, by curent change reactive chemistry, detect substrate concentration;
In discharge process, add variable concentrations chemical detection thing solution, by light anode potential reacting condition chemical detection substrate concentration.
8. application as claimed in claim 7, is characterized in that described chemical detection thing is glucose, H
2o
2, H
2s's is a kind of.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839139A (en) * | 2015-02-03 | 2016-08-10 | 松下知识产权经营株式会社 | Water splitting method |
| CN106238081A (en) * | 2015-12-29 | 2016-12-21 | 中国特种飞行器研究所 | Preparation has the WO of high activity photoelectrocatalysis decomposition water performance3the method of nanometer thorn/CoPi complex light anode |
| CN108597879A (en) * | 2018-03-19 | 2018-09-28 | 西北师范大学 | A kind of TiO2The preparation method of nano wire/NiO nanometer sheets/porphyrin composite material |
| CN111593353A (en) * | 2020-05-29 | 2020-08-28 | 深圳大学 | Photoelectrochemistry anti-corrosion protection composite photo-anode and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082032A (en) * | 2010-09-27 | 2011-06-01 | 清华大学 | Paper dye sensitization solar battery photo-anode and preparation method thereof |
-
2014
- 2014-06-25 CN CN201410288386.0A patent/CN104078245A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082032A (en) * | 2010-09-27 | 2011-06-01 | 清华大学 | Paper dye sensitization solar battery photo-anode and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| YONGCHENG WANG等: "Fully Solar-Powered Photoelectrochemical Conversion for Simultaneous Energy Storage and Chemical Sensing", 《NANO LETT.》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839139A (en) * | 2015-02-03 | 2016-08-10 | 松下知识产权经营株式会社 | Water splitting method |
| CN106238081A (en) * | 2015-12-29 | 2016-12-21 | 中国特种飞行器研究所 | Preparation has the WO of high activity photoelectrocatalysis decomposition water performance3the method of nanometer thorn/CoPi complex light anode |
| CN108597879A (en) * | 2018-03-19 | 2018-09-28 | 西北师范大学 | A kind of TiO2The preparation method of nano wire/NiO nanometer sheets/porphyrin composite material |
| CN108597879B (en) * | 2018-03-19 | 2020-09-22 | 西北师范大学 | TiO 22Preparation method of nanowire/NiO nanosheet/porphyrin composite material |
| CN111593353A (en) * | 2020-05-29 | 2020-08-28 | 深圳大学 | Photoelectrochemistry anti-corrosion protection composite photo-anode and preparation method and application thereof |
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