Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions

Maogang Gong, Tejas A. Shastry, Qiannan Cui, Ryan R. Kohlmeyer, Kyle A. Luck, Andrew Rowberg, Tobin J Marks, Michael F. Durstock, Hui Zhao, Mark C Hersam, Shenqiang Ren

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Semiconducting single-walled carbon nanotube/fullerene bulk heterojunctions exhibit unique optoelectronic properties highly suitable for flexible, efficient, and robust photovoltaics and photodetectors. We investigate charge-transfer dynamics in inverted devices featuring a polyethylenimine-coated ZnO nanowire array infiltrated with these blends and find that trap-assisted recombination dominates transport within the blend and at the active layer/nanowire interface. We find that electrode modifiers suppress this recombination, leading to high performance.

Original languageEnglish
Pages (from-to)7428-7435
Number of pages8
JournalACS Applied Materials and Interfaces
Volume7
Issue number13
DOIs
Publication statusPublished - Apr 8 2015

Fingerprint

Fullerenes
Carbon Nanotubes
Nanowires
Heterojunctions
Charge transfer
Carbon nanotubes
Polyethyleneimine
Single-walled carbon nanotubes (SWCN)
Photodetectors
Optoelectronic devices
Electrodes

Keywords

  • bulk heterojunction
  • charge transfer
  • fullerenes
  • mechanism
  • nanocarbon

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Gong, M., Shastry, T. A., Cui, Q., Kohlmeyer, R. R., Luck, K. A., Rowberg, A., ... Ren, S. (2015). Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions. ACS Applied Materials and Interfaces, 7(13), 7428-7435. https://doi.org/10.1021/acsami.5b01536

Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions. / Gong, Maogang; Shastry, Tejas A.; Cui, Qiannan; Kohlmeyer, Ryan R.; Luck, Kyle A.; Rowberg, Andrew; Marks, Tobin J; Durstock, Michael F.; Zhao, Hui; Hersam, Mark C; Ren, Shenqiang.

In: ACS Applied Materials and Interfaces, Vol. 7, No. 13, 08.04.2015, p. 7428-7435.

Research output: Contribution to journalArticle

Gong, M, Shastry, TA, Cui, Q, Kohlmeyer, RR, Luck, KA, Rowberg, A, Marks, TJ, Durstock, MF, Zhao, H, Hersam, MC & Ren, S 2015, 'Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions', ACS Applied Materials and Interfaces, vol. 7, no. 13, pp. 7428-7435. https://doi.org/10.1021/acsami.5b01536
Gong, Maogang ; Shastry, Tejas A. ; Cui, Qiannan ; Kohlmeyer, Ryan R. ; Luck, Kyle A. ; Rowberg, Andrew ; Marks, Tobin J ; Durstock, Michael F. ; Zhao, Hui ; Hersam, Mark C ; Ren, Shenqiang. / Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions. In: ACS Applied Materials and Interfaces. 2015 ; Vol. 7, No. 13. pp. 7428-7435.
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