Single-crystal WS₂ chiral ribbon arrays

Coherent chirality boosts photocurrent

Atomic manufacturing enables precise control of ribbon chirality and polarity, enabling order-of-magnitude photocurrent scaling in a single device and overcoming Schottky-Noise limitations.

Xue, Guodong · Zhou, Ziqi · Guo, Quanlin · Zuo, Yonggang · Wei, Wenya · Peng, Yin · Zhang, Shuai · You, Yilong · Sui, Xin · Liu, Chang · Wu, Muhong · Hong, Hao · Wang, Zhujun · Gao, Peng · Li, Qunyang · Zhang, Libo · Yu, Dapeng · Ding, Feng · Wei, Zhongming · Liu, Can · Liu, Kaihui

Science 2024

Advantages

A single armchair ribbon exhibited strong bulk photovoltaic effect

Integration of ~1000 aligned ribbons with coherent polarity enabled upscaling of the photocurrent