Enhanced efficiency and stability of polymer solar cells using solutionprocessed nickel oxide as hole transport material

Solution-processed nickel oxide (s-NiOx) was synthesized for use as hole-transport layers (HTLs) in the fabrication of polymer solar cell (PSC) devices. The s-NiOx thin-films were deposited using spin-coating and post-annealed at 300 C, 400 C, or 500 C. With increased annealing temperature, the nick...

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Bibliographic Details
Published in:Current applied physics 2017, 17(10), , pp.1232-1237
Main Authors: Shanmugam Parthiban, 김승민, Vellaiappillai Tamilavan, 이지훈, 신인수, D. Yuvaraj, 정윤경, 현명호, 정중현, 박성흠
Format: Article
Language:English
Subjects:
물리학
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Summary:Solution-processed nickel oxide (s-NiOx) was synthesized for use as hole-transport layers (HTLs) in the fabrication of polymer solar cell (PSC) devices. The s-NiOx thin-films were deposited using spin-coating and post-annealed at 300 C, 400 C, or 500 C. With increased annealing temperature, the nickel acetate precursor decomposes more fully and forms s-NiOx films that show larger crystalline grain sizes with lower root mean square surface roughness. Bulk heterojunction solar cells fabricated with the new random polymer RP(BDT-PDBT) and [6,6]-phenyl-C70-butyric acid methyl ester (PC70BM) using s-NiOx as HTLs exhibit a 4.46% enhancement in power conversion efficiency and better stability compared to conventional PSCs using poly (3,4-ethylenedioxythiophene):poly(styrene sulfonate) as HTLs. We believe that the solution-processable and highly stable s-NiOx could be a potential alternative for functional interface materials in optoelectronic devices. KCI Citation Count: 2
ISSN:1567-1739
1878-1675