A structure of CdS/CuxS quantum dots sensitized solar cells

Research output: Contribution to journalArticle

Abstract

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.

Details

Authors
Organisations
External organisations
  • University of Science and Technology Beijing
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Physical Chemistry
Original languageEnglish
Article number213901
JournalApplied Physics Letters
Volume108
Issue number21
Publication statusPublished - 2016 May 23
Publication categoryResearch
Peer-reviewedYes