Geodesy

Amorphous solid

Quantum mechanics

Benchmark (surveying)

Voltage

Engineering

Photochemistry

Materials science

Organic semiconductor

Silicon

Chemical engineering

Geology

Crystalline silicon

Transistor

Physics

Nanotechnology

Organic chemistry

Electron mobility

Geography

Amorphous silicon

Chemistry

Anthracene

Optoelectronics

Electrical engineering

Angewandte Chemie International Edition

Despite the remarkable synthetic accomplishments in creating diverse polycyclic aromatic hydrocarbons with B-N bonds (BN-PAHs), their optoelectronic applications have been less exploited. Herein, we report the achievement of high-mobility organic semiconductors based on existing BN-PAHs through a "periphery engineering" strategy. Tetraphenyl- and diphenyl-substituted BN-anthracenes (TPBNA and DPBNA, respectively) are designed and synthesized. DPBNA exhibits the highest hole mobility of 1.3 cm2 V-1 s-1 in organic field-effect transistors, significantly outperforming TPBNA and all the reported BN-PAHs. Remarkably, this is the first BN-PAH with mobility over 1 cm2 V-1 s-1 , which is a benchmark value for practical applications as compared with amorphous silicon. Furthermore, high-performance phototransistors based on DPBNA are also demonstrated, implying the high potential of BN-PAHs for optoelectronic applications when the "periphery engineering" strategy is implemented.

BN‐Anthracene for High‐Mobility Organic Optoelectronic Materials through Periphery Engineering