Enhanced performance of Al2O3 coated ZnO nanorods 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 journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    CdS/CdSe quantum dot-sensitized solar cells (QDSCs) based on ZnO nanorods, 4.55 μm in length, were studied. Many studies have shown that the performance of QDSCs is limited by a recombination process. Therefore, the interface layer was fabricated on the surface of the ZnO nanorods to retard recombination at the interface between the semiconductor and electrolyte. Overall, the performance of the QDSCs was improved by a surface coating of aluminum isopropoxide (Al 2O3) on the ZnO nanorod, which facilitates a decrease in electron recombination and increased adsorption of CdS/CdSe QDs on the ZnO nanorods.

    Original languageEnglish
    Pages (from-to)1404-1409
    Number of pages6
    JournalMaterials Chemistry and Physics
    Volume143
    Issue number3
    DOIs
    Publication statusPublished - Feb 14 2014

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics

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