Efficient ITO-free polymer solar cells with pitch-converted carbon nanosheets as novel solution-processable transparent electrodes

Title
Efficient ITO-free polymer solar cells with pitch-converted carbon nanosheets as novel solution-processable transparent electrodes
Authors
나석인이재선노용진김태욱김석순조한익이성호
Keywords
organic solar cells; conjugated polymers; transparent electrode; pitch; carbon nanosheets
Issue Date
2013-08
Publisher
Solar energy materials and solar cells
Citation
VOL 115, 1-6
Abstract
We demonstrate that pitch-converted carbon nanosheet (CNS) films can efficiently function as transparent conducting electrodes for polymer solar cells (PSCs). The solution-processed CNS film was prepared with spin-coating of a cost-effective pitch solution dissolved in dimethylformamide on quartz substrates, followed by stabilization and carbonization treatments to convert the pitch into CNS. The pitch-converted CNS films prepared by the successive heat-treatment process were examined as a novel transparent anode in solar cells, and as a result, PSCs fabricated directly on such CNS electrodes exhibited a high power conversion efficiency of ~1.7% under 100 mWcm−2 illumination and AM 1.5 G conditions. This approach could be highly desirable for advancing the realization of fully printable and flexible low-cost transparent electrodes for indium tin oxide (ITO)-free polymer solar cells.
URI
http://pubs.kist.re.kr/handle/201004/44850
ISSN
09270248
Appears in Collections:
KIST Publication > Article
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