Bay-Substitution Effect on Chiral Perylene Diimide Nanowires
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초록
내용
Here, we synthesized various bay-substituted chiral PDIs and self-assembled them into 1D nanomaterials. Each of the nanomaterials exhibited unique supramolecular chirality due to the bay-subsitution effect. Structural modification through the bay position also affect the electronic and optical properties. Among them, mono-cyanated NW based organic phototransistors exhibited the highest electron mobility up to 0.17 cm2 V−1s−1 and a low threshold voltage of −1 V. In addition, they showed outstanding optoelectronic performance with maximum photoresponsivity of 209 A W−1. Our results paved the way to utilize the bay substitution effect to tune the optoelectronic performance and supramolecular chirality effectively.