期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 13, 页码 4855-4863出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta00110f
关键词
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资金
- EPSRC Supersolar Hub
- EPSRC Apex project [EP/M023532/1]
- University of Edinburgh
- EPSRC [EP/M023532/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/M023532/1] Funding Source: researchfish
Four spiro[fluorene-9,9'-xanthene] (SFX) derivatives, SFX-TAD, SFX-TCz, SFX-TPTZ and SFX-MeOTAD have been synthesized for use as hole-transport materials and fully characterized by H-1/C-13 NMR spectroscopy, mass spectrometry, XRD and DSC. Their thermal, optical and electrochemical properties were investigated. The use of different substituents affects the highest occupied molecular orbital (HOMO) energy level proving the versatility of the central core towards the facile and low-cost preparation of spiro-holetransport materials. Among the synthesized SFX derivatives, SFX-MeOTAD was employed as hole-transporting material (HTM) and the performance tested in perovskite solar cells with device architecture glass/FTO/compact TiO2/mesoporous Al2O3/CH3NH3PbI3-xClx/HTM/Au. SFX-MeOTAD gave a comparable efficiency to spiro-MeOTAD, demonstrating great potential for use of the SFX family as cost effective and versatile hole conductors facilitating commercialization of perovskite solar cells (PSCs).
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