Preparation and Characterization of Quantum Dots Sensitized Solar Cells Based on TiO2/CdS:Mn2+/CdSe Photoanode

Preparation and Characterization of Quantum Dots Sensitized Solar Cells Based on TiO2/CdS:Mn2+/CdSe Photoanode

In this study, we have prepared and investigated the optical properties of the TiO2/CdS:Mn2+/CdSe photoanode as the function of Mn2+ doping concentration and thickness. The results show that the peaks of the UV-Vis spectra shifted toward longer wavelength while Mn2+ doping concentrations or thicknes...

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Bibliographic Details
Main Authors: Ha, Thanh Tung, Nguyen, Cong Hau, Nguyen, Tan Phat, Lam, Quang Vinh
Format: Article
Language:English
Published: H. : ĐHQGHN 2018
Subjects:
Solar cells
Nano CdS
Nano CdSe
Online Access:http://repository.vnu.edu.vn/handle/VNU_123/62900
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Institution: Vietnam National University, Hanoi
Language: English
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Summary:In this study, we have prepared and investigated the optical properties of the TiO2/CdS:Mn2+/CdSe photoanode as the function of Mn2+ doping concentration and thickness. The results show that the peaks of the UV-Vis spectra shifted toward longer wavelength while Mn2+ doping concentrations or thickness of the films were changed. The main cause of the red-shifting in UV-Vis spectra may come from the increasing of photoanode light-harvesting capacity. In addition, the results also demonstrated by the boosting performance of quantum dots sensitized solar cells from 2.07% for TiO2/CdS/CdSe photoanode to 2.5% for TiO2/CdS:Mn2+/CdSe photoanode.

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