Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 5, Issue 30, Pages 15714-15723Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta03103c
Keywords
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Funding
- UK Engineering and Physical Sciences Research Council (EPSRC) [EP/M025020/1, EP/N008065/1, EP/M014797/1]
- EPSRC via the University of Sheffield DTG
- EPSRC via the Centre for Doctoral Training in New and Sustainable PV [EP/L01551X/1]
- EPSRC [EP/M014797/1, EP/M028437/1, EP/N008065/1, EP/M025020/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [1511783, EP/M028437/1, 1647824, EP/N008065/1, EP/M025020/1, EP/M014797/1] Funding Source: researchfish
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It is shown that by chemically doping the carbazole-based conjugated polymer PCDTBT using the molecular materials TBP, LiTFSI and FK209, its conductivity can be increased by a factor of 10(5) times. Such doped PCDTBT films are used as a hole transport material (HTM) for standard architecture (CH(NH2)(2)PbI3)(0.85)(CH3NH3PbBr3)(0.15) perovskite solar cells (PSCs). We show that devices with optimised PCDTBT thickness and doping level achieve a peak power conversion efficiency (PCE) of 15.9%. We expect a number of related doped conjugated polymers to also be capable of acting as efficient HTMs for PSCs.
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