ZnO/CdSe/CdTe nanorod array photoelectrode and preparation method thereof

A nanorod array and photoelectrode technology, which is applied in the manufacture of circuits, electrical components, and final products, can solve the problems of limited range of absorption spectrum, poor chemical and electrical stability, difficult control and repetition, etc., to reduce electronic recombination loss , high interface quality, improved light absorption efficiency and photoelectrochemical properties
CN102437206AInactive Publication Date: 2012-05-02HUBEI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUBEI UNIV
Publication Date
2012-05-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a ZnO / CdSe / CdTe nanorod array photoelectrode of a solar cell and a preparation method for the ZnO / CdSe / CdTe nanorod array photoelectrode. The ZnO / CdSe / CdTe nanorod array photoelectrode consists of an ITO conductive glass substrate, a ZnO buffer thin film layer, a ZnO nanorod array layer, a CdSe shell and a CdTe quantum dot layer from inside to outside. Due to a CdSe and CdTe sensitization technology, the saturated photo-current density of the ZnO / CdSe / CdTe nanorod array photoelectrode is increased to 14.3 mA / cm<2>. The preparation process is simple and feasible, low in cost and high in yield, and has an excellent market application prospect.
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Description

【Technical field】

[0001] The invention belongs to the technical field of semiconductor nanometer materials. More specifically, the present invention relates to a ZnO / CdSe / CdTe nanorod array photoelectrode for solar cells, and also relates to a preparation method of the ZnO / CdSe / CdTe nanorod array photoelectrode. 【Background technique】

[0002] In recent years, due to the advantages of semiconductor quantum dots or nanocrystals with high absorption efficiency, adjustable band gap, high resistance to photodegradation, and multi-exciton generation effects, one-dimensional array electrodes can effectively reduce electron scattering and electron transport paths. To improve the electron diffusion length and light capture path, researchers gradually use quantum dots or nanocrystals to sensitize one-dimensional oxide nanoarray electrodes to prepare semiconductor-sensitized solar cells (SSSC for short). In the SSSC structure, since ZnO and TiO 2 The band gap is wide, the transmitta...

Claims

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