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      Epitaxial growth of successive CdSe ultrathin films and quantum dot layers on TiO2 nanorod arrays for photo-electrochemical cells

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      Author
      Feng, Shuanglong
      Wu, Jin
      Hu, Peng
      Chen, Ying
      Ma, Bing
      Peng, Jiangying
      Yang, Junyou
      Jiang, Hui
      Date of Issue
      2014
      School
      School of Materials Science and Engineering
      Abstract
      In this work, successive cadmium selenide (CdSe) ultrathin films and quantum dot layers were successfully deposited on TiO2 nanorod arrays by the electrochemical atomic layer epitaxy method (ECALE). The underpotential deposition (UPD) processes of the successive CdSe films and quantum dot layers were recorded in detail. The photo-electrochemical properties of the CdSe coated TiO2 nanorod array electrodes were also investigated, and the maximum current density reached 14.6 mA cm−2 under one sun (AM 1.5G, 100 mW cm−2). Using the ECALE method to grow a buffer layer between quantum dots and their supporting material will be useful for other energy-providing materials.
      Subject
      DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films
      Type
      Journal Article
      Series/Journal Title
      RSC advances
      Rights
      © 2014 The Royal Society of Chemistry.
      Collections
      • MSE Journal Articles
      http://dx.doi.org/10.1039/c3ra47404f
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