Hybrid photovoltaic cells based on ZnO/Sb 2S 3/P3HT heterojunctions

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • C. P. Liu
  • H. E. Wang
  • T. W. Ng
  • Z. H. Chen
  • W. F. Zhang
  • C. Yan
  • Y. B. Tang
  • I. Bello
  • L. Martinu
  • S. K. Jha

Detail(s)

Original languageEnglish
Pages (from-to)627-633
Journal / PublicationPhysica Status Solidi (B) Basic Research
Volume249
Issue number3
Publication statusPublished - Mar 2012

Abstract

We demonstrate hybrid photovoltaic (PV) cells based on n-i-p heterojunctions with incorporated zinc oxide (ZnO) films using a sol-gel method. The cells, employing stibnite (Sb 2S 3), and poly(3-hexylthiophene) (P3HT) materials, as light absorption layers, constitute an active region in the indium tin oxide (ITO)/ZnO(n)/Sb 2S 3(i)/P3HT(p)/Ag hybrid structure. Our investigation shows that annealing temperature has a significant effect on both the crystallinity and optical absorption of Sb 2S 3 films. The near-intrinsic Sb 2S 3 films annealed at 300°C exhibits dark conductivity of 1.42×10 -7Scm -1. The performance of PV cells strongly depends on thermal treatment of Sb 2S 3, and on the thickness of both the Sb 2S 3 and P3HT layers. Electronic structures of annealed Sb 2S 3 films was further studied by photoelectron spectroscopy to understand the physics behind. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Research Area(s)

  • Annealing effects, Electronic structure, Hybrid solar cells, ZnO/Sb 2S 3/P3HT

Citation Format(s)

Hybrid photovoltaic cells based on ZnO/Sb 2S 3/P3HT heterojunctions. / Liu, C. P.; Wang, H. E.; Ng, T. W. et al.
In: Physica Status Solidi (B) Basic Research, Vol. 249, No. 3, 03.2012, p. 627-633.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review