Integration of planar and bulk heterojunctions in polymer/nanocrystal hybrid photovoltaic cells

Zhanao Tan, Ting Zhu, Myo Thein, Shuai Gao, An Cheng, Fan Zhang, Chunfeng Zhang, Huaipeng Su, Jingkang Wang, Ron Henderson, Jong In Hahm, Yongping Yang, Jian Xu

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

We present in this communication a hybrid polymer/nanocrystal photovoltaic device architecture wherein a net poly(3-hexylthiophene) (P3HT) light-absorbing film is inserted underneath the blended layer of P3HT and PbSe nanocrystal quantum dots in the active region. Such a design features the vertical integration of planar and bulk heterojunctions, which allows 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 represents a significant improvement over previously reported hybrid cells containing bulk heterojunctions of P3HT and Pb(S,Se) nanocrystal quantum dots.

Original languageEnglish (US)
Article number063510
JournalApplied Physics Letters
Volume95
Issue number6
DOIs
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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