학술논문

Recombination in Quantum Dot Sensitized Solar Cells.
Document Type
Article
Source
Accounts of Chemical Research. Nov2009, Vol. 42 Issue 11, p1848-1857. 10p.
Subject
*SOLAR cells
*QUANTUM dots
*PHOTOVOLTAIC power systems
*TITANIUM dioxide
*ELECTRODES
*NANOSTRUCTURED materials
*MESOPOROUS materials
*THERMODYNAMICS
Language
ISSN
0001-4842
Abstract
Quantum dot sensitized solar cells (QDSCs) have attracted significant attention as promising third-generation photovoltaic devices. In the form of quantum dots (QDs), the semiconductor sensitizers have very useful and often tunable properties; moreover, their theoretical thermodynamic efficiency might be as high as 44%, better than the original 31% calculated ceiling. Unfortunately, the practical performance of these devices still lags behind that of dye-sensitized solar cells. In this Account, we summarize the strategies for depositing CdSe quantum dots on nanostructured mesoporous TiO2electrodes and discuss the methods that facilitate improvement in the performance and stability of QDSCs. [ABSTRACT FROM AUTHOR]