Ammonia treated ZnO nanoflowers based CdS/CdSe quantum dot sensitized solar cell

Soo Kyoung Kim, Songyi Park, Minkyu Son, Hee Je Kim

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Quantum dot-sensitized solar cells (QDSCs) have been attracting much attention due to their unique characteristics such as multiple exciton generation and a tunable band gap. Supporting materials of photoelectrodes for QDSCs like TiO2 and ZnO are some of the most important parts because they absorb sensitizers and also function as photo-injected electron pathways. Particularly, ZnO has many advantages for the photoelectrodes of QDSCs. In this study, we investigated the effect of ammonia treatment on ZnO nanoflower-based QDSCs by varying the concentration of ammonia. The influence of ammonia treatment is discussed with respect to the power conversion efficiency from the J-V curve, electrochemical impedance spectroscopy (EIS), and other analyses.

Original languageEnglish
Pages (from-to)531-536
Number of pages6
JournalElectrochimica Acta
Volume151
DOIs
Publication statusPublished - Jan 1 2015
Externally publishedYes

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Nanoflowers
Ammonia
Semiconductor quantum dots
Solar cells
Electrochemical impedance spectroscopy
Excitons
Conversion efficiency
Energy gap
Electrons

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

Ammonia treated ZnO nanoflowers based CdS/CdSe quantum dot sensitized solar cell. / Kim, Soo Kyoung; Park, Songyi; Son, Minkyu; Kim, Hee Je.

In: Electrochimica Acta, Vol. 151, 01.01.2015, p. 531-536.

Research output: Contribution to journalArticle

Kim, Soo Kyoung ; Park, Songyi ; Son, Minkyu ; Kim, Hee Je. / Ammonia treated ZnO nanoflowers based CdS/CdSe quantum dot sensitized solar cell. In: Electrochimica Acta. 2015 ; Vol. 151. pp. 531-536.
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