| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1266817 | Organic Electronics | 2016 | 5 Pages |
•After doping with F4TCNQ, the PCE of DEPT-SC based perovskite solar cells increased 18%.•After doping with F4TCNQ, the stability of the cells remains the same to the pristine device.•The charge transfer between HTM-DEPT-SC and dopant-F4TCNQ was proved by proton nuclear magnetic resonance characterization.•DEPT-SC doped with F4TCNQ is a stable hole transport material compared to famous spiro-OMeTAD.
The CH3NH3PbI3-based perovskite solar cells using α, α′-diethoxyethyl-oligothiophenes (DEPT-SC) doped with 2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquino-dimethane (F4TCNQ) as hole transport material (HTM) exhibited a power conversion efficiency of 11.52%. Compared to the pristine devices, the perovskite solar cells using the new synthesized HTM showed an increased efficiency by about 18% and exhibited better photo-stability, indicating that the organic dopant is an effective method for DEPT-SC toward stable perovskite solar cells.
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