Exploitation of inimitable properties of CuInS2 quantum dots for energy conversion in bulk heterojunction hybrid solar cell. (17th November 2017)

• Record Type: Journal Article
• Authors: Jindal, Shikha; Giripunje, Sushama M
• Is Part Of: Materials research express. Volume 4:Number 11(2017)
• Publication Date: 2017-11-17
• Subjects: CuInS2 quantum dots -- solvothermal method -- P3HT/CuInS2 hybrid solar cell -- power conversion efficiency; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/aa98b8
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: Quantum dots (QDs) are the suitable material for solar cell devices owing to its distinctive optical, electrical and electronic properties. Currently, the most efficient devices have employed the toxic QDs which cause destructive impact on environment. In the present article, we have used environment benign CuInS2 QDs as an acceptor material in bulk heterojunction device of P3HT and QDs. The energy level positions corroborated from UPS spectra substantiates the acceptor property of CuInS2 . We scrutinized the hybrid solar cell by tailoring the acceptor content in active layer. The increased acceptor content intensifies the performance of device. The enhancement in photovoltaic parameters is mainly due to the fast dissociation and extraction of photogenerated excitons which occurs with the larger wt% of acceptor QDs. Current density–voltage characteristics describes the greater V oc and I sc in the 60 wt% CuInS2 QDs based solar cell as compared to the low wt% of QDs in the active layer.