Nanoscale morphology and performance of molecular-weight-dependent poly(3-hexylthiophene)/TiO 2 nanorod hybrid solar cells

Ming Chung Wu, Chia Hao Chang, His Hsing Lo, Yi Shen Lin, Yun Yue Lin, Wei Che Yen, Wei Fang Su, Yang Fang Chen, Chun Wei Chen

研究成果: 雜誌貢獻文章

32 引文 (Scopus)

摘要

We have investigated the effect of polymer molecular weight on the morphology and performance of poly(3-hexylthiophene)/TiO 2 nanorod hybrid photovoltaic devices by using scanning near field optical microscopy (SNOM), atomic force microscopy (AFM) and confocal Raman microscopy. From the topography and absorption mapping images, it is found that the rod-like structure of the low molecular weight polymer hybrid film consists of a large amount of grain boundaries and has a less continuous absorption mapping image. In contrast, the larger domain structure of the high molecular weight polymer hybrid film exhibits a continuous absorption mapping image, as a result of enhanced polymer stacking and electronic delocalization. The nanoscale morphology of the hybrid samples with different molecular weights also reveals the nature of photovoltaic performance and carrier transport behavior investigated by the time-of-flight technique.
原文英語
頁(從 - 到)4097-4102
頁數6
期刊Journal of Materials Chemistry
18
發行號34
DOIs
出版狀態已發佈 - 九月 1 2008
對外發佈Yes

指紋

Nanorods
Solar cells
Polymers
Molecular weight
Near field scanning optical microscopy
Carrier transport
Topography
Atomic force microscopy
Microscopic examination
Grain boundaries
poly(3-hexylthiophene)

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

引用此文

Nanoscale morphology and performance of molecular-weight-dependent poly(3-hexylthiophene)/TiO 2 nanorod hybrid solar cells. / Wu, Ming Chung; Chang, Chia Hao; Lo, His Hsing; Lin, Yi Shen; Lin, Yun Yue; Yen, Wei Che; Su, Wei Fang; Chen, Yang Fang; Chen, Chun Wei.

於: Journal of Materials Chemistry, 卷 18, 編號 34, 01.09.2008, p. 4097-4102.

研究成果: 雜誌貢獻文章

Wu, Ming Chung ; Chang, Chia Hao ; Lo, His Hsing ; Lin, Yi Shen ; Lin, Yun Yue ; Yen, Wei Che ; Su, Wei Fang ; Chen, Yang Fang ; Chen, Chun Wei. / Nanoscale morphology and performance of molecular-weight-dependent poly(3-hexylthiophene)/TiO 2 nanorod hybrid solar cells. 於: Journal of Materials Chemistry. 2008 ; 卷 18, 編號 34. 頁 4097-4102.
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abstract = "We have investigated the effect of polymer molecular weight on the morphology and performance of poly(3-hexylthiophene)/TiO 2 nanorod hybrid photovoltaic devices by using scanning near field optical microscopy (SNOM), atomic force microscopy (AFM) and confocal Raman microscopy. From the topography and absorption mapping images, it is found that the rod-like structure of the low molecular weight polymer hybrid film consists of a large amount of grain boundaries and has a less continuous absorption mapping image. In contrast, the larger domain structure of the high molecular weight polymer hybrid film exhibits a continuous absorption mapping image, as a result of enhanced polymer stacking and electronic delocalization. The nanoscale morphology of the hybrid samples with different molecular weights also reveals the nature of photovoltaic performance and carrier transport behavior investigated by the time-of-flight technique.",
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AU - Lo, His Hsing

AU - Lin, Yi Shen

AU - Lin, Yun Yue

AU - Yen, Wei Che

AU - Su, Wei Fang

AU - Chen, Yang Fang

AU - Chen, Chun Wei

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