Triple-Junction Hybrid Tandem Solar Cells with Amorphous Silicon and Polymer-Fullerene Blends

Title
Triple-Junction Hybrid Tandem Solar Cells with Amorphous Silicon and Polymer-Fullerene Blends
Authors
김태희김혁박진주김형채윤영운김성민신종훈정희석김인호정두석김홍곤김진영김봉수고민재손해정김창순이준신한승희이도권
Keywords
tandem solar cells; triple-junction; organic-inorganic hybrid; amorphous silicon; OPV
Issue Date
2014-11
Publisher
Scientific Reports
Citation
VOL 4, 7154-1-7154-6
Abstract
Organic-inorganic hybrid tandem solar cells attract a considerable amount of attention due to their potential for realizing high efficiency photovoltaic devices at a low cost. Here, highly efficient triple-junction (TJ) hybrid tandem solar cells consisting of a double-junction (DJ) amorphous silicon (a-Si) cell and an organic photovoltaic (OPV) rear cell were developed. In order to design the TJ device in a logical manner, a simulation was carried out based on optical absorption and internal quantum efficiency. In the TJ architecture, the high-energy photons were utilized in a more efficient way than in the previously reported a-Si/OPV DJ devices, leading to a significant improvement in the overall efficiency by means of a voltage gain. The interface engineering such as tin-doped In2O3 deposition as an interlayer and its UV-ozone treatment resulted in the further improvement in the performance of the TJ solar cells. As a result, a power conversion efficiency of 7.81% was achieved with an open-circuit voltage of 2.35 V. The wavelength-resolved absorption profile provides deeper insight into the detailed optical response of the TJ hybrid solar cells.
URI
http://pubs.kist.re.kr/handle/201004/48812
ISSN
20452322
Appears in Collections:
KIST Publication > Article
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