Qing-Zhong Zhou, Feng Guo, Ming-Rui Zhang, Qing-Liang You, Biao Xiao, Ji-Yan Liu, Cui Liu, Xue-Qing Liu, Liang Wang. Impact of charge carrier recombination and energy disorder on the open-circuit voltage of polymer solar cells [J]. Acta Physica Sinica, 2020, 69(4): 046101-1
- Acta Physica Sinica
- Vol. 69, Issue 4, 046101-1 (2020)
Fig. 1. (a) Chemical structures of PC71BM、O-IDTBR and their energy level diagrams; (b) Current density-Voltage curves of the PC71BM and O-IDTBR based devices.
Fig. 2. (a) V oc-Temperature curves of the devices using different electron acceptors; (b) Mott- Schottky curves for the devices.
Fig. 3. (a) Recombination resistance as a function of the light intensities, inset: Equivalent circuit of the measured impedance spectrum; (b) transient photovoltage curves of the devices.
Fig. 4. Electroluminescence of the (a) PC71BM and (b) O-IDTBR based devices with various injection current.
Fig. 5. (a) Illustration of the fluorescence emission process in the polymer solar cells; (b) illustration of the impact of energy disorder on the open-circuit voltage.
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