Hole transport layer based on conjugated polyelectrolytes for polymer solar cells

Moon, Sanghun; Khadtare, Shubhangi; Wong, Matthew; Han, Sung-Hwan; Bazan, Guillermo C.; Choi, Hyosung

doi:10.1016/j.jcis.2018.02.009

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Hole transport layer based on conjugated polyelectrolytes for polymer solar cells

Moon, Sanghun;
Khadtare, Shubhangi;
Wong, Matthew;
Han, Sung-Hwan;
Bazan, Guillermo C.;
... Choi, Hyosung

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24

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25

초록

We demonstrate the conjugated polyelectrolytes (CPEs) as efficient hole transport layer (HTL) of polymer solar cells. Replacing poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) with a CPEs with narrow bandgap results in both improvements in device efficiency and stability. In spite of their narrow bandgap, thin CPE films (thickness of similar to 30 nm) enable sufficient light absorption within the active layer. Enhancement of device efficiency is attributed to low surface roughness, high transmittance in visible region, and reduced charge transfer resistance. Compared to the device with PEDOT:PSS, pH neutral nature of CPEs may enhance device stability under ambient condition.

키워드

Conjugated polyelectrolytes; Hole transport layer; Polymer solar cells; Bulk heterojunction; ORGANIC ELECTRONIC DEVICES; EFFICIENCY; PERFORMANCE; PEDOTPSS; PERMITTIVITY; INTERLAYERS

제목: Hole transport layer based on conjugated polyelectrolytes for polymer solar cells

저자: Moon, Sanghun; Khadtare, Shubhangi; Wong, Matthew; Han, Sung-Hwan; Bazan, Guillermo C.; Choi, Hyosung

DOI: 10.1016/j.jcis.2018.02.009

발행일: 2018-05

유형: Article

저널명: Journal of Colloid and Interface Science

권: 518

페이지: 21 ~ 26