The Exciton Multification and the Third Generation of Solar Cell

doi:10.7517/j.issn.1674-0475.2013.03.001

Abstract

Abstract: Recently, the pathway and the mechanism of exciton multification for improving the photo-electric conversion efficiency of solar cell become an important aspect with extensive attention. In this review, many factors such as the impact ionization, phonon bottleneck, cooling of hot-electron, electron transfer process and the Auger recombination, which may affect the formation of the second electron-hole pair in system have been discussed. Review is also briefly to introduce the method of (Pump-Probe) transient absorption spectrum (TA) measurement for studying the dynamic process of exciton multification. And several examples are listed for the illustration of this phenomenon in semi-conductor QD systems which have been applied as a new materials in the third generation of solar cell.

Key words: exciton multification, QD, compact ionization, phonon bottleneck, Auger recombination, third generation of solar cell

CLC Number:

WU Shi-kang. The Exciton Multification and the Third Generation of Solar Cell[J]. Imaging Science and Photochemistry, 2013, 31(3): 161-174.

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