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《第七届新型太阳能电池材料科学与技术学术研讨会论文集》2020年
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Pyridine Bridging Diphenylamine-Carbazole with Linking Topology as Rational Hole Transporter for Perovskite Solar Cells Fabrication

Peng Huang  Manju  Samrana Kazim  Gangala Sivakumar  Manuel Salado  Rajneesh Misra  Shahzada Ahmad  
【摘要】:Developing cost-effective and rational hole transporting materials is critical for fabricating high-performance perovskite solar cells(PSCs) and to promote their commercial endeavor.We have designed and developed pyridine(core) bridging diphenylamine-substituted carbazole(arm) small molecules,named as 2,6 PyDANCBZ and 3,5 PyDANCBZ.The linking topology of core and arm on their photophysical,thermal,semiconducting and photovoltaic properties were probed systematically.We found that the 2,6 PyDANCBZ shows higher mobility and conductivity along with uniform film-forming ability as compared to 3,5 PyDANCBZ.The PSCs fabricated with 2,6 PyDANCBZ supersede the performance delivered by Spiro-OMeTAD,and importantly also gave improved long-term stability.Our findings put forward small molecules based on core-arm linking topology for cost-effective hole selective layers designing.

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