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

doi:10.1016/j.electacta.2013.11.191

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 journal › Article

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 language	English
Pages (from-to)	118-123
Number of pages	6
Journal	Electrochimica Acta
Volume	118
DOIs	https://doi.org/10.1016/j.electacta.2013.11.191
Publication status	Published - Feb 1 2014
Externally published	Yes

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All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Electrochemistry

Cite this

Kim, S. K., Son, M. K., Park, S., Jeong, M. S., Prabakar, K., & Kim, H. J. (2014). Surface modification on TiO₂ nanoparticles in CdS/CdSe Quantum Dot-sensitized Solar Cell. Electrochimica Acta, 118, 118-123. https://doi.org/10.1016/j.electacta.2013.11.191

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AU - Prabakar, Kandasamy

AU - Kim, Hee Je

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AB - 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.

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10.1016/j.electacta.2013.11.191