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physics.optics2020★ 27 cited
Strong bulk photovoltaic effect and second-harmonic generation in two-dimensional selenium and tellurium
Meijuan Cheng, Zi-Zhong Zhu, Guang-Yu Guo
Few-layer selenium and tellurium films have been recently prepared, and they provide a new platform to explore novel properties of two-dimensional (2D) elemental materials. In this…
physics.optics2020★ 10 cited
Significant Second-Harmonic Generation and Bulk Photovoltaic Effect in Trigonal Selenium and Tellurium Chains
Meijuan Cheng, Xiaohong Shi, Shunqing Wu +1
One-dimensional selenium and tellurium crystalize in helical chainlike structures and thus exhibit fascinating properties. By performing first-principles calculations, we have rese…