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Synergistic photovoltaic-thermoelectric effect in a nanostructured CdTe/Bi2Te3 heterojunction for hybrid energy harvesting

Luo, Bingwei, Deng, Yuan, Wang, Yao, Gao, Min, Zhu, Wei, Hashim, Hasan Talib and García-Cañadas, Jorge 2016. Synergistic photovoltaic-thermoelectric effect in a nanostructured CdTe/Bi2Te3 heterojunction for hybrid energy harvesting. RSC Advances 6 (115) , pp. 114046-114051. 10.1039/C6RA20149K

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Abstract

Recent advances in the photovoltaic and thermoelectric material synthesis and characterization have engendered significant interest in their solar energy harvesting. However, examples of energy harvesting by the two effects in one single cell are relatively rare, and at present there are no known examples to solve the heat problem in a conventional solar cell. Here we show that a synergistic photovoltaic and thermoelectric effect takes place in a single heterojunction solar cell that consists a p-type CdTe nanorod array and n-type Bi2Te3 nanostructures. This novel cell is capable of converting light and heat into electricity via combined photovoltaic and thermoelectric processes, providing a simple and elegant material structure for development of high efficiency solar cells which can harvest solar energy over a wider solar spectrum. In addition, this discovery may provide a viable solution to the heat problems in conventional solar cells. Based on the synergistic photovoltaic and thermoelectric effect, the cell of FTO/CdS/CdTe/Bi2Te3 has been prepared and an efficiency (η) increase of 23.3% is achieved after 1 min illumination

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: RSC Publishing
ISSN: 2046-2069
Date of First Compliant Deposit: 12 May 2017
Date of Acceptance: 1 December 2016
Last Modified: 29 May 2018 16:36
URI: http://orca.cf.ac.uk/id/eprint/96937

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