Influence of crystal phase for CuInS2 on device performance of polymer-CuInS2/oxide nanoarrays solar cells

Wenjin Yue, Guoqiang Zhang, Songming Wang, Wenshan Sun, Mingyang Lan, Guangjun Nie

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

The paper demonstrates the influence of crystal phase for CuInS2 on device performance of MEH-PPV-CuInS2/oxide nanoarrays hybrid polymer-based solar cells. CuInS2 quantum dots with wurtzite and chalcopyrite crystallographic phases are incorporated into pristine polymer layer as light-harvesting hybrids, while ZnO nanoarrays (ZnO-NA) and TiO 2 nanoarrays (TiO2-NA) are used as electron acceptor. Results show that devices with wurtzite CuInS2 quantum dots (WCIS-QDs) exhibited higher photovoltaic performance in MEH-PPV-CuInS 2/ZnO-NA solar cells, while devices with chalcopyrite CuInS 2 quantum dots (CCIS-QDs) exhibited higher performance in MEH-PPV-CuInS2/TiO2-NA solar cells. It is concluded that the devices based on metal oxide and CuInS2 that belong to the same crystal system contribute to the increased device performance, which possibly results from the more effective energy transfer and transport between metal oxide and CuInS2 with the same crystal system.

Original languageEnglish (US)
Pages (from-to)337-343
Number of pages7
JournalMaterials Science in Semiconductor Processing
Volume25
DOIs
StatePublished - Jan 1 2014

Keywords

  • Crystal phase
  • Metal oxide
  • Polymer
  • Solar cells

ASJC Scopus subject areas

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

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