Optimization of postproduction heat treatment for plastic solar cells

Kanzan Inoue; Ross William Ulbricht; Pallavi Chandra Madakasira; William M. Sampson; Sergey Lee; Jose M. Gutierrez; John P. Ferraris; Anvar A. Zakhidov

doi:10.1117/12.593476

3 November 2004 Optimization of postproduction heat treatment for plastic solar cells

Kanzan Inoue, Ross William Ulbricht, Pallavi Chandra Madakasira, William M. Sampson, Sergey Lee, Jose M. Gutierrez, John P. Ferraris, Anvar A. Zakhidov

Author Affiliations +

Proceedings Volume 5520, Organic Photovoltaics V; (2004) https://doi.org/10.1117/12.593476
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

We present this detailed study of a postproduction heat treatment of flexible organic solar cells based on regio-regular (RR) P3HT:PCBM composite in a wide temperature range from 75°C to 150°C. The efficiency of the photovoltaic device was significantly improved by postproduction heat treatment and both optimal annealing temperature and time dependencies were determined. Optimized parameters yielded >3% efficiency for devices on glass substrates and, using these optimized parameters, an efficiency of >2% was found for devices fabricated on flexible substrates. The optimal phase separation of PCBM and RR-P3HT into bi-continuous network structure occurs within a very short period of time and are very stable. We found that optimal concentration of PCBM in a RR-P3HT matrix is rather low, only 34 w.%. We show the performance of plastic solar cells fabricated on flexible substrates (ITO coated PET) using these optimized heat treatment parameters.

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Kanzan Inoue, Ross William Ulbricht, Pallavi Chandra Madakasira, William M. Sampson, Sergey Lee, Jose M. Gutierrez, John P. Ferraris, and Anvar A. Zakhidov "Optimization of postproduction heat treatment for plastic solar cells", Proc. SPIE 5520, Organic Photovoltaics V, (3 November 2004); https://doi.org/10.1117/12.593476

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