Enhanced charge-carrier transport through shorter carbon nanotubes in organic photovoltaics

Xinbo C. Lau; Zheqiong Wu; Somenath Mitra

doi:10.1021/am404543r

Enhanced charge-carrier transport through shorter carbon nanotubes in organic photovoltaics

Xinbo C. Lau, Zheqiong Wu, Somenath Mitra

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We demonstrate for the first time the efficiency improvement of organic photovoltaics by the addition of shorter multiwalled carbon nanotubes (MWNTs) generated by size sorting. The different size MWNTs were generated by size sorting a batch of carboxylated MWNTs and were introduced as charge carriers in poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) bulk heterojunction photovoltaic cells. As compared to a control with only PCBM, the addition of the long and short MWNT resulted in 12 and 34% improvement in short circuit current density (J_sc) respectively. The results indicate that length of carbon nanotubes is an important consideration in photovoltaic and possibly other nanoelectronic devices.

Original language	English (US)
Pages (from-to)	1640-1645
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	3
DOIs	https://doi.org/10.1021/am404543r
State	Published - Feb 12 2014

All Science Journal Classification (ASJC) codes

General Materials Science

Keywords

CNT
OPV
P3HT
PCBM
short carbon nanotubes
size sorting

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10.1021/am404543r

Cite this

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abstract = "We demonstrate for the first time the efficiency improvement of organic photovoltaics by the addition of shorter multiwalled carbon nanotubes (MWNTs) generated by size sorting. The different size MWNTs were generated by size sorting a batch of carboxylated MWNTs and were introduced as charge carriers in poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) bulk heterojunction photovoltaic cells. As compared to a control with only PCBM, the addition of the long and short MWNT resulted in 12 and 34% improvement in short circuit current density (Jsc) respectively. The results indicate that length of carbon nanotubes is an important consideration in photovoltaic and possibly other nanoelectronic devices.",

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AU - Lau, Xinbo C.

AU - Wu, Zheqiong

AU - Mitra, Somenath

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N2 - We demonstrate for the first time the efficiency improvement of organic photovoltaics by the addition of shorter multiwalled carbon nanotubes (MWNTs) generated by size sorting. The different size MWNTs were generated by size sorting a batch of carboxylated MWNTs and were introduced as charge carriers in poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) bulk heterojunction photovoltaic cells. As compared to a control with only PCBM, the addition of the long and short MWNT resulted in 12 and 34% improvement in short circuit current density (Jsc) respectively. The results indicate that length of carbon nanotubes is an important consideration in photovoltaic and possibly other nanoelectronic devices.

AB - We demonstrate for the first time the efficiency improvement of organic photovoltaics by the addition of shorter multiwalled carbon nanotubes (MWNTs) generated by size sorting. The different size MWNTs were generated by size sorting a batch of carboxylated MWNTs and were introduced as charge carriers in poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) bulk heterojunction photovoltaic cells. As compared to a control with only PCBM, the addition of the long and short MWNT resulted in 12 and 34% improvement in short circuit current density (Jsc) respectively. The results indicate that length of carbon nanotubes is an important consideration in photovoltaic and possibly other nanoelectronic devices.

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Enhanced charge-carrier transport through shorter carbon nanotubes in organic photovoltaics

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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