Ammonia treated ZnO nanoflowers based CdS/CdSe quantum dot sensitized solar cell. (1st January 2015)

• Record Type: Journal Article
• Authors: Kim, Soo-Kyoung; Park, Songyi; Son, Min-Kyu; Kim, Hee-Je
• Is Part Of: Electrochimica acta. Volume 151(2015)
• Page Start: 531
• Page End: 536
• Publication Date: 2015-01-01
• Subjects: Quantum dot-sensitized solar cell -- ZnO nanoflower -- nanostructure -- CdS/CdSe; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2014.11.032
• Languages: English
• ISSNs: 0013-4686

Abstract

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.