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Modification of hybrid active bilayer for enhanced efficiency and stability in planar heterojunction colloidal
Seung Jin Heo, Seokhyun Yoon, Sang Hoon Oh
1School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, South Korea. hjk3@yonsei.ac.kr.
Abstract:
Solution-processed planar heterojunction colloidal quantum dot photovoltaics with a hybrid active bilayer is demonstrated. A power conversion efficiency of 1.24% under simulated air mass 1.5 illumination conditions is reported. This was achieved through solid-state treatment with cetyltrimethylammonium bromide of PbS colloidal quantum dot solid films. That treatment was used to passivate Br atomic ligands as well as to engineer the interface within the hybrid active bilayer.
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