Designing ternary blend all-polymer solar cells with an efficiency of over 10% and a fill factor of 78%

Li Z, Ying L, Xie R, Zhu P, Li N, Zhong W, Huang F, Cao Y (2018)

Publication Language: English

Publication Status: Published

Publication Type: Journal article

Publication year: 2018

Journal

Nano Energy Elsevier

Publisher: ELSEVIER SCIENCE BV

Book Volume: 51

Pages Range: 434-441

DOI: 10.1016/j.nanoen.2018.06.081

Abstract

In recent years, ternary blend bulk-heterojunction (BHJ) all-polymer solar cells have been gradually developed to better utilize the solar irradiance spectrum. However, power conversion efficiencies remain below 10%, mainly because of the low fill factor. Generally, the fill factor of all-polymer solar cells is limited mainly by the competition between the recombination and extraction of free charges. Here, we design advanced ternary blend all-polymer solar cells with a high fill factor of 78%, thus demonstrating how such recombination thresholds can be overcome. These results can be attributed to the high and balanced bulk charge mobility, reduced recombination, and optimized morphology, as well as the intimate mixing properties of the two donors in the photoactive layer.

Authors with CRIS profile

Ning Li Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

South China University of Technology (SCUT) / 华南理工大学 CN China (CN)

How to cite

APA:

Li, Z., Ying, L., Xie, R., Zhu, P., Li, N., Zhong, W.,... Cao, Y. (2018). Designing ternary blend all-polymer solar cells with an efficiency of over 10% and a fill factor of 78%. Nano Energy, 51, 434-441. https://dx.doi.org/10.1016/j.nanoen.2018.06.081

MLA:

Li, Zhenye, et al. "Designing ternary blend all-polymer solar cells with an efficiency of over 10% and a fill factor of 78%." Nano Energy 51 (2018): 434-441.

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