Plastic solar cells: breaking the 10% commercialization barrier

Letian Dou; Jingbi You; Chun-Chao Chen; Gang Li; Yang Yang

doi:10.1117/12.930410

25 September 2012 Plastic solar cells: breaking the 10% commercialization barrier

Letian Dou, Jingbi You, Chun-Chao Chen, Gang Li, Yang Yang

Proceedings Volume 8477, Organic Photovoltaics XIII; 847702 (2012) https://doi.org/10.1117/12.930410
Event: SPIE Organic Photonics + Electronics, 2012, San Diego, California, United States

Abstract

Tandem solar cells provide an effective way to harvest a broader spectrum of solar radiation by combining two or more solar cells with different absorption ranges. However, for polymer solar cells (PSCs), the performance of tandem devices lags behind single-layer cells mainly due to the lack of a high-performance low-bandgap polymer with appropriate spectral response range. Here, we demonstrate a novel low bandgap conjugated polymer (~1.44 eV) specifically suitable for tandem structure. In the single-layer device, power conversion efficiency (PCE) of 6.5% was achieved. When the polymer was applied to tandem solar cells, we demonstrated a NREL certified PCE of 8.62%^[1] . Further optimization on materials and devices of this system has lead to record breaking efficiency of 10.6%. Furthermore, the tandem devices show excellent stability due both to the intrinsic stability of the polymer and the advanced device structure.

Citation Download Citation

Letian Dou, Jingbi You, Chun-Chao Chen, Gang Li, and Yang Yang "Plastic solar cells: breaking the 10% commercialization barrier", Proc. SPIE 8477, Organic Photovoltaics XIII, 847702 (25 September 2012); https://doi.org/10.1117/12.930410

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