Cu3SnS4/Cu2SnSe3 composite photocathode for photoelectrochemical solar cell and preparation method thereof

The invention relates to a Cu3SnS4/Cu2SnSe3 composite photocathode for a photoelectrochemical solar cell and a preparation method of the Cu3SnS4/Cu2SnSe3 composite photocathode. The preparation method includes the steps that firstly, Cu3SnS4 nano-particles with the diameter ranging from 200 nanomete...

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Bibliographische Detailangaben
Hauptverfasser:	GU YONGQIN, SONG DUANMING, SONG CHANGBIN, ZHAO YULONG, QIANG YINGHUAI, GU XIUQUAN, ZHU LEI, WANG BO, ZHU JIANJING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE ELECTRICITY
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Beschreibung
Zusammenfassung:	The invention relates to a Cu3SnS4/Cu2SnSe3 composite photocathode for a photoelectrochemical solar cell and a preparation method of the Cu3SnS4/Cu2SnSe3 composite photocathode. The preparation method includes the steps that firstly, Cu3SnS4 nano-particles with the diameter ranging from 200 nanometers to 300 nanometers and Cu2SnSe3 nano-particles with the diameter ranging from 250 nanometers to 350 nanometers are synthesized through the solvothermal method; secondly, mechanical agitation and ultrasonic treatment are carried out on the Cu3SnS4 nano-particles and the Cu2SnSe3 nano-particles respectively, and the Cu3SnS4 nano-particles and the Cu2SnSe3 nano-particles are dissolved in deionized water to form 'ink' through ultrasonic treatment; thirdly, the black 'ink' is applied to a conducting substrate, and then annealing is carried out for 0.5-1h under the temperature of 450DEG C-550DEG C to obtain the mesoporous Cu3SnS4/Cu2SnSe3 composite photocathode. According to the method, the mesoporous Cu3SnS4/Cu2SnSe3