Surface modification on TiO2 nanoparticles in CdS/CdSe Quantum Dot-sensitized Solar Cell

Soo Kyoung Kim, Min Kyu Son, Songyi Park, Myeong Soo Jeong, Kandasamy Prabakar, Hee Je Kim

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

CdS/CdSe quantum dot-sensitized solar cells (QDSCs) based on TiO 2 nanoparticles were examined. TiO2 nanoparticles were coated with three different insulating oxide materials, Al2O 3, MgO and BaTiO3, as a barrier layer to prevent recombination losses. In this study, a single and double coated barrier layer is fabricated to optimize the passivation effect. The optimized double coating structure increased the electron transport rate and electron lifetime and showed improved conversion efficiency.

Original languageEnglish
Pages (from-to)118-123
Number of pages6
JournalElectrochimica Acta
Volume118
DOIs
Publication statusPublished - Feb 1 2014
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

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