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Stars are Aligned: Triazatruxene Hole Transporting Material Hits the Sweet Spot to Reach 20% Efficiency of Perovskite Solar Cell

Ekaterina Agafonova,Marina Tepliakova,Sergey Luchkin,Andrey Ionov,Svetlana Protasova,Artem Novikov, Davlad Zamoretskov,Aleksander V. Akkuratov,Keith J. Stevenson

SSRN Electronic Journal（2022）

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Abstract
• The benchmarking of star-shaped organic semiconductors as HTMs for perovskite solar cells is presented. • The triazatruxene-based compounds are promising hole-transporting materials to enable 20% device efficiency without doping. • An optimal range of HOMO energy level of small-molecule hole transporting material for MAPbI3 is found experimentally. • Photoluminescence quenching is proportionally related to device efficiency in the absence of the intrinsic photoluminescence.
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solar cell,triazatruxene hole,perovskite,stars
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