Modeling and Optimization of Polymer based Bulk Heterojunction (BH) Solar cell
Abstract
A polymer phase separation model based on Cahn-Hilliard equation and a three-dimensional (3D) coupled exciton/electron/hole transport model in the disordered, phase-segregated morphology so generated, allow us to predict– possibly for the first time – the morphology dependent performance limits of polymer/fullerene bulk heterostructure (BH) solar cells. We relate the optimum anneal time to polymer sizes, solvent content, film thickness, and anneal temperature and find that a regularization of the morphology can double the efficiency of BH cells.
Keywords
Organic solar cell, Bulk Heterojunction, Process Model, Phase separation
Date of this Version
12-9-2009
Recommended Citation
Ray, Biswajit; Nair, Pradeep R.; García, R. Edwin; and Alam, Muhammad A., "Modeling and Optimization of Polymer based Bulk Heterojunction (BH) Solar cell" (2009). Birck and NCN Publications. Paper 521.
https://docs.lib.purdue.edu/nanopub/521