AUTHOR=Tung Ha Thanh , Phuc Dang Huu 

TITLE=Effect of Cd1-xMnxSe Alloy Thickness on the Optical and Photovoltaic Properties of Quantum Dot-Sensitized Solar Cells

JOURNAL=Frontiers in Materials

VOLUME=6

YEAR=2019

URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2019.00304

DOI=10.3389/fmats.2019.00304

ISSN=2296-8016

ABSTRACT=<p>In this work, the Cd<sub>1−x</sub>Mn<sub>x</sub>Se alloy was successfully prepared using a successive ionic layer adsorption and reaction method to investigate the layers' effect on the properties of devices while concentration dopant was optimized at 20% (molar concentrations between Mn<sup>2+</sup> and Cd<sup>2+</sup> ions in the Cd<sub>1−x</sub>Mn<sub>x</sub>Se material). The layers of the Cd<sub>1−x</sub>Mn<sub>x</sub>Se alloy play a role in improving the optical, photovoltaic, and electrochemical properties of the solar cells. Hence, the efficiency performance of devices based on the Cd<sub>1−x</sub>Mn<sub>x</sub>Se alloy reached ~3.8%. Besides, in order to explain this result, the experimental <italic>I</italic>–<italic>V</italic> curve was also used to determine the resistances at the interfaces and the resistance diffusion of the devices. This dynamic resistance can be compared with that of electrochemical impedance spectra.</p>