Speaker
Ms
Nattha Buatong
(Department of Physics, Faculty of Science, Kasetsart University, Bangkok, THAILAND 10900)
Description
With power conversion efficiency in continuous growth, quantum dot-sensitized solar cells
(QDSSCs) are recently under high interest; however there is no such perfect cell yet developed for these devices. As the fundamental model of QDSSCs, the morphology of the TiO${}_2$ photoanode plays an important role in photovoltaic performance. Herein, the TiO${}_2$ films based on nanorods (TiR) and arrays of nanorods having flower blossom-like formations on their surface (FTiR) were synthesized by one- and double-step hydrothermal process, respectively. The CdS and CdSe co-sensitized on TiR and FTiR were deposited by using the successive ion layer absorption and reaction (SILAR) and chemical bath deposition (CBD). To study conversion efficiency, FTiR after CdS/CdSe co-sensitized has shown the improving conversion efficiency (η) compared with TiR photoanode. The efficiencies of CdS/CdSe co-sensitized loading were 0.703% and 0.022% for FTiR and TiR photoanodes, respectively. This study revealed a synergistically beneficial effect (enhanced solar-to-current conversion) of the flower blossom-like formations on the nanorods in CdS/CdSe co-sensitized solar cells.
Author
Ms
Nattha Buatong
(Department of Physics, Faculty of Science, Kasetsart University, Bangkok, THAILAND 10900)
Co-authors
Ms
Wararat Montha
(Department of Physics, Faculty of Science, Kasetsart University, Bangkok, THAILAND 10900)
Dr
Weeraphat Pon-On
(Department of Physics, Faculty of Science, Kasetsart University, Bangkok, THAILAND 10900)
