High-throughput Morphology Prediction for Organic Solar Cells

Project Personnel

Zhenan Bao

Principal Investigator

Stanford University

Email

Vijay Pande

Stanford University

Email

Michael Toney

Stanford University

Email

Funding Divisions

Division of Materials Research (DMR)

Organic photovoltaic cells (OPVs) are alternatives to conventional solar cells as they promise low-cost mass production combined with lightweight and flexible applications. In particular, they offer a prospect to provide basic electricity to the millions of people in rural areas of undeveloped countries who lack access to the power grid. Many OPV materials have been reported in the literature, but few have shown efficiencies greater than 8%. The key challenge is to design materials that fulfill all the requirements. A typical OPV consists of a donor and an acceptor blended together. Predicting the nanoscale morphology remains one of the biggest challenge in predicting OPV performance. Therefore, many material combinations and large processing parameter space (e.g. donor/acceptor ratio, solvents, annealing conditions, film thickness) presently need to be screened.

Publications

Understanding the Impact of Oligomeric Polystyrene Side Chain Arrangement on the All-Polymer Solar Cell Performance
T. Kurosawa, X. D. Gu, K. L. Gu, Y. Zhou, H. P. Yan, C. Wang, G. J. N. Wang, M. F. Toney, Z. A. Bao
Non-Conjugated Flexible Linkers in Semiconducting Polymers: A Pathway to Improved Processability without Compromising Device Performance
B. C. Schroeder, Y. C. Chiu, X. D. Gu, Y. Zhou, J. Xu, J. Lopez, C. Lu, M. F. Toney, Z. N. Bao
Compact Roll-to-Roll Coater for in Situ X-ray Diffraction Characterization of Organic Electronics Printing
X. D. Gu, J. Reinspach, B. J. Worfolk, Y. Diao, Y. Zhou, H. P. Yan, K. V. Gu, S. Mannsfeld, M. F. Toney, Z. N. Bao
Comparison of the Morphology Development of Polymer-Fullerene and Polymer-Polymer Solar Cells during Solution-Shearing Blade Coating
X. D. Gu, H. P. Yan, T. Kurosawa, B. C. Schroeder, K. L. Gu, Y. Zhou, J. W. F. To, S. D. Oosterhout, V. Savikhin, F. Molina-Lopez, C. J. Tassone, S. C. B. Mannsfeld, C. Wang, M. F. Toney, Z. A. Bao
Direct Uniaxial Alignment of a Donor-Acceptor Semiconducting Polymer Using Single-Step Solution Shearing
L. Shaw, P. Hayoz, Y. Diao, J. A. Reinspach, J. W. F. To, M. F. Toney, R. T. Weitz, Z. N. Bao
All-Polymer Solar Cells Employing Non-Halogenated Solvent and Additive
Y. Zhou, K. L. Gu, X. D. Gu, T. Kurosawa, H. P. Yan, Y. K. Guo, G. I. Koleilat, D. H. Zhao, M. F. Toney, Z. N. Bao
Solution-Phase Conformation and Dynamics of Conjugated Isoindigo-Based Donor-Acceptor Polymer Single Chains
F. L. Lee, A. B. Farimani, K. L. Gu, H. P. Yan, M. F. Toney, Z. A. Bao, V. S. Pande
Tuning Domain Size and Crystallinity in Isoindigo/PCBM Organic Solar Cells via Solution Shearing
K. L. Gu, Y. Zhou, X. D. Gu, H. P. Yan, Y. Diao, T. Kurosawa, B. Ganapathysubramanian, M. E. Toney, Z. N. Bao
Roll-to-Roll Printed Large-Area All-Polymer Solar Cells with 5% Efficiency Based on a Low Crystallinity Conjugated Polymer Blend
X. D. Gu, Y. Zhou, K. Gu, T. Kurosawa, Y. K. Guo, Y. K. Li, H. R. Lin, B. C. Schroeder, H. P. Yan, F. Molina-Lopez, C. J. Tassone, C. Wang, S. C. B. Mannsfeld, H. Yan, D. H. Zhao, M. F. Toney, Z. N. Bao

Research Highlights