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Portrait of Tönu Pullerits; Photo: Kennet Ruona

Tönu Pullerits

Professor

Portrait of Tönu Pullerits; Photo: Kennet Ruona

A structure of CdS/CuxS quantum dots sensitized solar cells

Author

  • Ting Shen
  • Lu Bian
  • Bo Li
  • Kaibo Zheng
  • Tönu Pullerits
  • Jianjun Tian

Summary, in English

This work introduces a type of CdS/CuxS quantum dots (QDs) as sensitizers in quantum dot sensitized solar cells by in-situ cationic exchange reaction method where CdS photoanode is directly immersed in CuCl2 methanol solution to replace Cd2+ by Cu2+. The p-type CuxS layer on the surface of the CdS QDs can be considered as hole transport material, which not only enhances the light harvesting of photoanode but also boosts the charge separation after photo-excitation. Therefore, both the electron collection efficiency and power conversion efficiency of the solar cell are improved from 80% to 92% and from 1.21% to 2.78%, respectively.

Department/s

  • Chemical Physics
  • NanoLund: Center for Nanoscience

Publishing year

2016-05-23

Language

English

Publication/Series

Applied Physics Letters

Volume

108

Issue

21

Document type

Journal article

Publisher

American Institute of Physics (AIP)

Topic

  • Physical Chemistry
  • Condensed Matter Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0003-6951