Efficient hybrid infrared solar cells based on P3HT and PbSe nanocrystal quantum dots

Zhanao Tan, Wenqing Zhang, Deping Qian, Hua Zheng, Shengqiang Xiao, Yongping Yang, Ting Zhu, Jian Xu

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

1 Scopus citations

Abstract

The effects of composition on the performance of hybrid photovoltaic cells based on PbSe nanocrystal quantum dot(NQD)/poly(3-hexylthiophene) nanocomposites were studied. The device performance and the absorption property strongly depended on the loading of PbSe. To improve the device performance, a pure light-absorbing P3HT film was inserted underneath the blended layer of P3HT and PbSe nanocrystal quantum dots in the active region. Such a design allowed for the employment of a thinner bulk heterojunction for more efficient carrier collection without an excessive reduction of the overall light absorption by the photovoltaic cell. The measured device performance showed a significant improvement over previously reported hybrid cells containing bulk heterojunctions of P3HT and Pb(S, Se) nanocrystal quantum dots.

Original languageEnglish (US)
Title of host publicationEnergy, Environment and Biological Materials
PublisherTrans Tech Publications Ltd
Pages38-43
Number of pages6
ISBN (Print)9783037851159
DOIs
StatePublished - Jan 1 2011

Publication series

NameMaterials Science Forum
Volume685
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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