Structural Investigation of Hybrid Organic Photovoltaic Devices with Single-Walled Carbon Nanotubes
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概要
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In this work, we investigated the effects of single-walled carbon nanotubes (SWNTs) on the device performance of organic photovoltaic devices (OPVs) according to the location of the added SWNTs. When SWNTs were incorporated in OPVs, we found that the power conversion efficiency (PCE) of OPVs depended on the device structure, resulting in improved PCE of 1.89% in SWNTs network layer cell (SNC) at 0.5 wt % SWNTs (37% increase) and 1.57% in SWNTs doped cell (SDC) at 0.25 wt % SWNTs (14% increase) compared to that of 1.38% in the reference device. We concluded that superior performance of SNC was due to more efficient carrier extracting and improved transport behaviors by suppressing the recombination losses without disturbing the intimate conformations of photoactive materials.
- 2010-11-25
著者
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Lee Keun
School of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea
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Kim Hyun
School of Advanced Materials Science and Engineering, Center for Advanced Plasma Surface Technology, Sungkyunkwan University, Suwon, Kyunggi-do 440-746, Republic of Korea
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Oh Sang
School of Advanced Materials Engineering, Chonbuk National University, Chonju-si, Chonbuk 561-756, Korea
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Oh Sang
School of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea
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Kim Kyung
School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Huksuk-dong, Dongjak-gu, Seoul 156-756, Korea
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Kim Kyung
School of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea
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Heo Kon
School of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea
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Moujoud Abderrafia
School of Electrical and Electronic Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea
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