Understanding the photovoltaic performances of ZnSe quantum dot-fullerene nanocomposites: A computational study

Autor:	Basir Ahamed Khan, Biplab Goswami
Rok vydání:	2021
Předmět:	Nanocomposite Fullerene business.industry Charge separation Chemistry Photovoltaic system Composite number Physics::Optics Electronic structure Condensed Matter Physics Biochemistry Condensed Matter::Materials Science Quantum dot Optoelectronics Physical and Theoretical Chemistry business
Zdroj:	Computational and Theoretical Chemistry. 1206:113463
ISSN:	2210-271X
DOI:	10.1016/j.comptc.2021.113463
Popis:	By using density-functional tight-binding method we herein explored the electronic structure of ZnSeQD-Fullerene nanocomposite system. Our objective is to understand the suitability of using this nanocomposite as building blocks for photovoltaic devices. We have shown that this composite has favorable band energy alignment for efficient charge separation and delayed electron-hole recombination. We have also calculated the photovoltaic efficiencies of ZnSeQD-Fullerene nanocomposite for ZnSe QDs of different sizes. The photovoltaic efficiency depends on the size of ZnSe QDs and can attain the maximum value of 18%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::32b9f3a392df752d86cb129eb7f52f7a https://doi.org/10.1016/j.comptc.2021.113463 Zobrazit plný text záznamu Full Text from ScienceDirect