Metal chloride-treated graphene oxide to produce high-performance polymer solar cells
- Authors
- Choi, Eun-Su; Jeon, Ye-Jin; Kim, Seok-Soon; Kim, Tae-Wook; Noh, Yong-Jin; Kwon, Sung-Nam; Na, Seok-In
- Issue Date
- 2015-07-13
- Publisher
- AMER INST PHYSICS
- Citation
- APPLIED PHYSICS LETTERS, v.107, no.2
- Abstract
- We introduce a simple but effective graphene oxide (GO) modification with metal chloride treatments to produce high-performance polymer solar cells (PSCs). The role of various metal chlorides on GO and their effects on device performances of PSCs was investigated. X-ray photoelectron spectroscopy, ultraviolet photoemission spectroscopy, and current-voltage measurement studies demonstrated that metal chloride can induce a p-doping effect and increase the GO work-function, thus resulting in an improved built-in potential and interfacial resistance in PSCs. The resultant PSCs with metal chloride exhibited improved device efficiency than those with the neat GO. Furthermore, with the metal chloride-doped GO, we finally achieved an excellent PSC-efficiency of 6.58% and a very desirable device stability, which constitute a highly similar efficiency but much better PSC life-time to conventional device with poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS). This study could be a valuable way to produce various PEDOT: PSS alternatives and beneficial for producing high-performance and cost-efficient polymeric devices. (C) 2015 AIP Publishing LLC.
- Keywords
- HOLE TRANSPORTING LAYER; WORK FUNCTION; SOLVOTHERMAL REDUCTION; ORGANIC ELECTRONICS; PHOTOVOLTAIC CELLS; EFFICIENT; SHEETS; GRAPHITE; HOLE TRANSPORTING LAYER; WORK FUNCTION; SOLVOTHERMAL REDUCTION; ORGANIC ELECTRONICS; PHOTOVOLTAIC CELLS; EFFICIENT; SHEETS; GRAPHITE
- ISSN
- 0003-6951
- URI
- https://pubs.kist.re.kr/handle/201004/125230
- DOI
- 10.1063/1.4926799
- Appears in Collections:
- KIST Article > 2015
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