On Monday July 6th, the nanoHUB will be intermittently unavailable due to scheduled maintenance. All tool sessions will be shut down early in the morning. Home directories and tools will be unavailable most of the day. We apologize for any inconvenience this may cause. close


Support Options

Submit a Support Ticket


Modeling and Optimization of Polymer Based Bulk Heterojunction (BH) Solar Cell

By Biswajit ray

Purdue University

Published on


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.


Biswajit Ray Biswajit Ray is a Phd student in the school of Electrical and Computer Engineering, Purdue university, West Lafayette, Indiana. He works with Prof. Muhammad Ashraf Alam in the area of polymer based solar cell. Before joining Purdue he did Masters from Indian Institute of Science, Bangalore, India in 2008 and Bachelors in Electrical and Electronics Engineering from National Institute of Technology, Trichy, India in 2006.

Sponsored by


�Modeling and Optimization of Polymer based Bulk Heterojunction (BH)Solar cell �, B. Ray, P.R. Nair, R. E. García, M. Alam, International
Electron Devices Meeting (IEDM), Baltimore, USA, Dec 2009.

Cite this work

Researchers should cite this work as follows:

  • Biswajit ray (2010), "Modeling and Optimization of Polymer Based Bulk Heterojunction (BH) Solar Cell," http://nanohub.org/resources/8407.

    BibTex | EndNote



Birck Nanotechnology Center, Rm 2001, Purdue University, West Lafayette, IN


nanoHUB.org, a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.