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Improvement of quantum and power conversion efficiency through electron transport layer modification of ZnO/perovskite/PEDOT: PSS based organic heterojunction solar cell

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jun 2019Publisher:Elsevier BVJournal:Solar Energy, volume 185, pages 439-444 (issn: 0038-092X,

Authors: Santanu Maity; Biswajit Das; Reshmi Maity; Niladri Pratap Maity; Koushik Guha; K. Srinivasa Rao;

doi: 10.1016/j.solener.2019.04.092

Improvement of quantum and power conversion efficiency through electron transport layer modification of ZnO/perovskite/PEDOT: PSS based organic heterojunction solar cell

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Abstract

Abstract This paper represents perovskite material based hybrid (ITO/ZnO-ZnMgO (nano)/PCBM/CH3NH3PbI3-xClx/PEDOT: PSS/C3-SAM/Ag) organic solar cell with high quantum and power conversion efficiency. Due to the insertion of 3-aminopropanoic acid as an ambipolar self-assembled monolayer (C3-SAM) and ZnO/ZnMgO layer carrier collection efficiency increases. An optical modified structure is proposed (through the modification of ZnO/ZnMgO layer) to increase the surface to volume ratio and enhance the photon collection efficiency. As a result, the Internal quantum efficiency (IQE) increases 83.2% to 91.7% fill factor (FF) changes from 77% to 85%, short circuit current density (Jsc) changes from 14.9 mA/cm2 to 21 mA/cm2, and overall solar cell efficiency increases from 9.17 to 14.7%.

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