DocumentCode :
2122470
Title :
Multiscale modeling and simulation for optimizing polymer bulk heterojunction solar cells
Author :
Wei, Fanan ; Liu, Liming ; Liu, Lianqing ; Li, Guangyong
Author_Institution :
Department of Electrical and Computer Engineering, University of Pittsburgh, PA 15261 USA
fYear :
2012
fDate :
3-8 June 2012
Firstpage :
1
Lastpage :
10
Abstract :
Optimizing polymer bulk heterojunction solar cells requires a fine tune over the thickness, weight ratio, and the morphology because of the strong coupling among light absorption, exciton dissociation, and charge carrier transport within bulk heterojunctions. Without guidance from modeling and simulation, it will be a daunting challenge to optimize the device performance. In this paper, we present a multiscale modeling and simulation approach by integrating the Monte Carlo simulation, the optical absorption calculation, and the macroscopic device simulation. Such integration accounts for multiscale aspects of the bulk heterojunctions in polymer solar cells, which is not possible by any individual method alone. For the first time, we are able to predict the best device performance by simultaneously optimizing the thickness of the active layer, the nanoscale morphology of the bulk heterojunctions, and the donor/acceptor weight ratio through the multiscale simulation.
Keywords :
Absorption; Excitons; Monte Carlo methods; Morphology; Nanoscale devices; Photovoltaic cells; Polymers; Monte Carlo simulation; multiscale simulation; organic solar cells;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), Volume 2, 2012 IEEE 38th
Conference_Location :
Austin, TX, USA
Type :
conf
DOI :
10.1109/PVSC-Vol2.2012.6656794
Filename :
6656794
Link To Document :
بازگشت