Core Fusion Engineering of Hole-Transporting Materials for Efficient Perovskite Solar Cells
Source abstract
Abstract
In this work, a fused polycyclic aromatic hydrocarbon (PAH) core was introduced to construct hole-transporting materials (HTMs) for perovskite solar cells (PSCs). It was found that with the extended π-conjugation of the fused core, the hole mobility was enhanced along with the better film-forming property for (tetrakis(hexylphenyl)-dronaphthotetraphenodithiophene)bis(N,N-bis(methoxyphenyl)aniline) (MPA-DTP) compared to that for (tetrakis(hexylphenyl)-indacenodithiophene)bis(N,N-bis(methoxyphenyl)aniline) (MPA–IDT). The smooth and condensed film morphology is beneficial for interfacial contact, leading to reduced nonradiative recombination. As a result, planar PSCs based on MPA–DTP displayed a superior efficiency of 19.20%, far exceeding that of the MPA–IDT-based device (15.64%) and slightly higher than those with spiro-OMeTAD (19.11%). We believe that fused core engineering is envisioned as a promising strategy for developing highly efficient HTMs in PSCs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Light-Emitting Diodes Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
Laboratory for Advanced Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, China
Department of Materials Science and Engineering and the Shenzhen Key Laboratory for Printed Organic Electronics, Southern University of Science and Technology (SUSTech), No. 1088, Xueyuan Road, Shenzhen, Guangdong 518055, China
Funding
Science, Technology and Innovation Commission of Shenzhen Municipality · National Natural Science Foundation of China · Chinese Academy of Sciences
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