Enhancement Mechanisms of the Power Conversion Efficiency for the P3HT:PCBM Bulk Heterojunction Solar Cells with a LiF Cathode Buffer Layer Due to Thermal Annealing

Han, Qifeng; Arul, Narayanasamy Sabari; Kim, Tae Whan

doi:10.1080/15421406.2014.944756

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Enhancement Mechanisms of the Power Conversion Efficiency for the P3HT:PCBM Bulk Heterojunction Solar Cells with a LiF Cathode Buffer Layer Due to Thermal Annealing

Han, Qifeng;
Arul, Narayanasamy Sabari;
Kim, Tae Whan

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초록

The effect of thermal annealing on the device characteristics of the bulk heterojunction poly(3-hexylthiophene) (P3HT):fullerene derivative [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) solar cells was investigated. Absorption spectra showed that the absorption intensity was highest for the P3HT:PCBM layer with a LiF layer annealed for 5min. Atomic force microscopy images showed that the P3HT:PCBM layer with a LiF layer annealed for 5min had the uniform surface morphology. The fabricated organic photovoltaic (OPV) cells annealed for 5min showed the enhanced power conversion efficiency of 3.87% than that of the OPV cells annealed for 3 or 10min.

키워드

P3HT:PCBM layer; Photovoltaic cells; LiF cathode buffer layer; power conversion efficiency; thermal annealing; POLYMER PHOTOVOLTAIC CELLS; PERFORMANCE; MORPHOLOGY; DEVICES; BLENDS

제목: Enhancement Mechanisms of the Power Conversion Efficiency for the P3HT:PCBM Bulk Heterojunction Solar Cells with a LiF Cathode Buffer Layer Due to Thermal Annealing

저자: Han, Qifeng; Arul, Narayanasamy Sabari; Kim, Tae Whan

DOI: 10.1080/15421406.2014.944756

발행일: 2014-10

유형: Article

저널명: Molecular Crystals and Liquid Crystals

권: 602

호: 1

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