CN206697524U

CN206697524U - A kind of organic electroluminescent and photovoltaic double-function device

Info

Publication number: CN206697524U
Application number: CN201720407168.3U
Authority: CN
Inventors: 刘洪波
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-18
Filing date: 2017-04-18
Publication date: 2017-12-01
Anticipated expiration: 2027-04-18

Abstract

The utility model discloses a kind of organic electroluminescent and photovoltaic double-function device, and it includes transparent conductive substrate, the first decorative layer, the second decorative layer, active layer, the 3rd decorative layer and reflecting electrode composition.The organic electroluminescent and photovoltaic double-function device that the utility model is announced, realize the dual-use function of a device, can both be used as electroluminescent device, as illumination or display, can also be powered as photovoltaic device under illumination condition.Device architecture of the present utility model is simple, while can obtain higher photovoltaic energy conversion efficiency and luminous efficiency.

Description

A kind of organic electroluminescent and photovoltaic double-function device

Technical field

A kind of organic electroluminescent and photovoltaic double-function device is the utility model is related to, belongs to semiconductor photoelectronic device skill Art field.

Background technology

It is frivolous, inexpensive, flexible and the advantages that can be easily made broad area device that organic optoelectronic device possesses quality.Bag Development of the devices such as organic electroluminescence device, organic solar batteries and organic effect thin film transistor (TFT) by all electricity is included, All achieve significant progress.Part organic optoelectronic product has been interviewed.Such as Organic Light Emitting Diode (OLED) is complete because of its The advantages that solid-state, self-luminous, efficiency high, substitution liquid crystal market progressively, prospect are very bright.Meanwhile organic solar The energy conversion efficiency of battery has breached 10%, has had been observed that the dawn of the marketization.Believe in the near future with regard to that can see To the product of organic solar batteries.

There is also some shortcomings for organic optoelectronic device.It is single to be mainly manifested in traditional device function.It is such as organic Light emitting diode can only be used as luminescent device, it is necessary to which the outside power supply that provides could work, and organic solar batteries can only conduct Photovoltaic device, it can be used for being generated electricity when daylight abundance, can not just be worked on when night dark .So the double-function device for developing organic electroluminescent and photovoltaic is significant.The luminous and side of photovoltaic double-function device one Face improves the integrated level of device, reduces the cost of manufacture of device.On the other hand can realize difunctional in luminous and photovoltaic Between freely change.When daytime is sunny, luminous energy is absorbed as photovoltaic device.When night dark, utilize The luminous energy of storage on daytime realizes illumination..

The content of the invention

To solve the problems, such as in background technology, the utility model provides a kind of difunctional device of organic electroluminescent and photovoltaic Part, device from down to up successively include transparent conductive substrate, the first decorative layer, the second decorative layer, active layer, the 3rd decorative layer and Reflecting electrode forms, it is characterised in that the second described decorative layer is TAPC, and thickness is 2 nm；Described active layer is PIN-type Structure, wherein P-type layer are rubrene rubrene, P-type layer thickness 5-15 nm；N-type layer is C₇₀Layer, N-type layer thickness 20-40 nm；I types layer is rubrene and C₇₀Mixed layer, mixed proportion is mass ratio 1：10, thickness 10-30 nm.

Further, described transparent conductive substrate is made a living the glass substrate with ITO, square resistance 10-20 Ω, is passed through Rate 80-90%.

Further, the first described decorative layer is MoO₃, thickness 2-20 nm.

Further, the LiF that the 3rd described decorative layer is 5-10 nm BPhen and 0.5 nm forms composite modified Layer.

Further, described reflecting electrode is Al electrodes, reflecting electrode thickness 50-200 nm.

The use of the first decorative layer all material is MoO in the present invention₃, MoO₃Visible transparency is good, and work function is high, hole Transmittability is strong, as the first decorative layer, can be very good to promote hole injection and collects.Second decorative layer is 2 nm's TAPC, 2 nm TAPC it is possible to prevente effectively from exciton in MoO₃The quenching of first decorative layer, improve the energy conversion efficiency of battery With the luminous efficiency of luminescent device, while thin TAPC will not introduce larger resistance.The active layer of the present invention uses PIN-type knot Structure, be advantageous to the interface of exciton from so as to improve the efficiency of battery.The donor of battery and the luminescent material of luminescent device are red glimmering Alkene rubrene, luminous efficiency are high and cheap.It possesses stronger absorption at 400 to 500 nm solar spectrum simultaneously, Donor layer as organic photovoltaic battery, higher open-circuit voltage and short circuit current can be obtained.The acceptor material and hair of battery The electron transport material of optical device is C₇₀。C₇₀Electron mobility it is high, be provided simultaneously with excellent visible absorption ability, can be with The receptive layers of electron transfer layer and photovoltaic device as electroluminescent device.BPhen/LiF is as the 3rd decorative layer, Ke Yiyu Reflecting electrode forms Ohmic contact, reduces electron injection and the potential barrier collected, and improves electroluminescent and the photovoltaic efficiency of device.This Invention a kind of organic electroluminescent and photovoltaic double-function device, when device is used as electroluminescent device, device it is most light Degree is more than 2000 cd/m²；When device is used as photovoltaic device, under AM1.5 simulated solar light irradiations, the open-circuit voltage of device More than 0.9 V, energy conversion efficiency is more than 2.5%.

The organic electroluminescent and photovoltaic double-function device that the utility model is announced, realize a device dual-use function, Both electroluminescent device can be used as, as illumination or display, can also be powered as photovoltaic device under illumination condition.Device Electroluminescent and photovoltaic performance it is more excellent, and device shows preferable working stability after simplified package is carried out Property.

Brief description of the drawings

Fig. 1 is organic electroluminescent of the present utility model and photovoltaic double-function device structural representation.

Embodiment

A kind of organic electroluminescent and photovoltaic double-function device, device architecture is as shown in figure 1, device wraps successively from down to up Transparent conductive substrate, the first decorative layer, the second decorative layer, active layer, the 3rd decorative layer and reflecting electrode composition, its feature is included to exist In the second described decorative layer is TAPC, and thickness is 2 nm；Described active layer is PIN-type structure, and wherein P-type layer is red glimmering Alkene rubrene, P-type layer thickness 5-15 nm；N-type layer is C₇₀Layer, N-type layer thickness 20-40 nm；I types layer is rubrene and C₇₀ Mixed layer, mixed proportion is mass ratio 1：10, thickness 10-30 nm.

Further, the first described decorative layer is MoO₃, thickness 2-20 nm.

Further, described reflecting electrode is Al electrodes, reflecting electrode thickness 50-200 nm.With reference to specific reality Applying example, the present invention is further illustrated.

Embodiment one

A kind of organic electroluminescent and photovoltaic double-function device, device architecture ITO/ MoO₃(2 nm)/TAPC (2 nm)/ rubrene(5 nm)/C₇₀：rubrene (10:1;10 nm)/ C₇₀(40 nm)/ BPhen (5 nm)/ LiF (0.5 Nm)/Al (100 nm), the wherein Ω of square resistance 15, the ito glass of transmitance 85% is as transparent conductive substrate, 2 nm MoO₃As the first decorative layer；2 nm TAPC is as the second decorative layer；P-types of the 5 nm rubrenes rubrene as active layer Layer；10 nm mixed proportions are mass ratio 10：1 C₇₀：I type layer of the rubren hybrid films as active layer；40 nm C₇₀Make For the N-type layer of active layer；5 nm BPhen and 0.5 nm LiF are as the 3rd decorative layer；100 nm Al is as reflection electricity Pole.

Embodiment two

A kind of organic electroluminescent and photovoltaic double-function device, device architecture ITO/ MoO₃(10 nm)/TAPC (2 nm)/rubrene(15 nm)/C₇₀：rubrene (10:1;15 nm)/ C₇₀(20 nm)/ BPhen (8 nm)/ LiF (0.5 nm)/Al (80 nm), the wherein Ω of square resistance 10, the ito glass of transmitance 90% is as transparent conductive substrate, 10 nm MoO₃As the first decorative layer；2 nm TAPC is as the second decorative layer；Ps of the 15 nm rubrenes rubrene as active layer Type layer；15 nm mixed proportions are mass ratio 10：1 C₇₀：I type layer of the rubren hybrid films as active layer；20 nm C₇₀ N-type layer as active layer；8 nm BPhen and 0.5 nm LiF are as the 3rd decorative layer；80 nm Al is as reflection electricity Pole.

Embodiment three

A kind of organic electroluminescent and photovoltaic double-function device, device architecture ITO/ MoO₃(20 nm)/TAPC (2 nm)/rubrene(10 nm)/C₇₀：rubrene (10:1;30 nm)/ C₇₀(20 nm)/ BPhen (10 nm)/ LiF (0.5 nm)/Al (200 nm), the wherein Ω of square resistance 15, the ito glass of transmitance 85% is as transparent conductive substrate, 20 Nm MoO₃As the first decorative layer；2 nm TAPC is as the second decorative layer；10 nm rubrenes rubrene are as active layer P-type layer；30 nm mixed proportions are mass ratio 10：1 C₇₀：I type layer of the rubren hybrid films as active layer；20 nm's C₇₀N-type layer as active layer；10 nm BPhen and 0.5 nm LiF are as the 3rd decorative layer；200 nm Al is as anti- Radio pole.

Claims

1. a kind of organic electroluminescent and photovoltaic double-function device, device architecture include successively from down to up transparent conductive substrate, First decorative layer, the second decorative layer, active layer, the 3rd decorative layer and reflecting electrode composition, it is characterised in that described second is repaiied Decorations layer is TAPC, and thickness is 2 nm；Described active layer is PIN-type structure, and wherein P-type layer is rubrene rubrene, P-type layer Thickness 5-15 nm；N-type layer is C₇₀Layer, N-type layer thickness 20-40 nm；I types layer is rubrene and C₇₀Mixed layer, mixing ratio Example is mass ratio 1：10, thickness 10-30 nm.

2. a kind of organic electroluminescent and photovoltaic double-function device as claimed in claim 1, it is characterised in that described is transparent Conductive substrates are made a living the glass substrate with ITO, square resistance 10-20 Ω, transmitance 80-90%.

A kind of 3. organic electroluminescent and photovoltaic double-function device as claimed in claim 1, it is characterised in that described first Decorative layer is MoO₃, thickness 2-20 nm.

A kind of 4. organic electroluminescent and photovoltaic double-function device as claimed in claim 1, it is characterised in that described the 3rd The composite modification inlay for the LiF compositions that decorative layer is 5-10 nm BPhen and 0.5 nm.

A kind of 5. organic electroluminescent and photovoltaic double-function device as claimed in claim 1, it is characterised in that described reflection Electrode is Al electrodes, reflecting electrode thickness 50-200 nm.