Semiconductor organic-inorganic nanocomposites: From synthesis to packing at the air/water interface and photovoltaic application

Zhiqun Lin, Matthew D. Goodman, Jun Xu, Jun Wang, Malika Jeffries-El

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nanocomposites of poly(3-hexylthiophene)-cadmium selenide (P3HT-CdSe) were synthesized by directly grafting vinyl terminated P3HT onto [(4-bromophenyl)methyl]dicotylphosphine oxide (DOPO-Br)-functionalized CdSe quantum dot (QD) surfaces via a mild palladium-catalyzed Heck coupling, thereby dispensing with the need for ligand exchange chemistry. The resulting P3HT-CdSe nanocomposites possess a well-defined interface, thus significantly promoting the dispersion of CdSe within the P3HT matrix and facilitating the electronic interaction between these two components. The P3HT-CdSe nanocomposites at the air/water interface formed via Langmuir isotherms were explored for the first time. The P3HT-CdSe nanocomposites displayed a high pressure plateau in the Langmuir isotherm, illustrating their complex packing at the air/water interface. Furthermore, photovoltaic devices fabricated from the LB depositions of the P3HT-CdSe nanocomposites exhibited a relatively high short circuit current, ISC, while maintaining a thin film profile. These studies provide insights into the fundamental behaviors of semiconductor organic f{inorganic nanocomposites confined at the air/water interface as well as in the active layer of an organic-based photovoltaic device.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
StatePublished - Dec 1 2009
Externally publishedYes
Event237th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Salt Lake City, UT, United States
Duration: Mar 22 2009Mar 26 2009

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other237th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CitySalt Lake City, UT
Period3/22/093/26/09

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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