True nature of active layers in organic solar cells fabricated by sequential casting of donor and acceptor layers

Yim, Jong Hyuk and Joe, Sung‐yoon and Nguyen, Duc Cuong and Ryu, Shin Young and Ha, Na Young and Ahn, Y. H. and Park, Ji‐Yong and Lee, Soonil (2016) True nature of active layers in organic solar cells fabricated by sequential casting of donor and acceptor layers. physica status solidi - Rapid Research Letters, 11 (2). 1600415(1)-1600415(4). ISSN 1862-6270

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Abstract

The operation characteristics of nominal bilayer (BL) organic solar cells (OSCs), the active layers (ALs) of which consisted of sequentially casted bottom P3HT donor and top ICBA acceptor layers, resembled those of OSCs with bulk heterojunction (BHJ) ALs. Optical analysis and device simulations showed that such resemblance can be attributed to a similarity in the micromorphology of ALs; as‐deposited BL‐type ALs transformed spontaneously into BHJ‐type ALs. The inclusion of P3HT nanowires (NWs) in the donor layers resulted in different AL micromorphology and consequently a larger power conversion efficiency. Separate assessment of the exciton generation and charge–carrier transport and/or extraction showed that the contribution of P3HT NWs was more prominent in optical effects.

Item Type:	Article
Subjects:	Scopus-indexed journals ISI-indexed journals
Divisions:	Faculty of Engineering Physics and Nanotechnology (FEPN)
Depositing User:	Dr. Duc Cuong Nguyen
Date Deposited:	15 Nov 2018 09:20
Last Modified:	15 Nov 2018 09:20
URI:	http://eprints.uet.vnu.edu.vn/eprints/id/eprint/3145

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