83 citations · 276 across the 7 of their papers we have counts for
7 papers
Ab initio study of proton-exchanged LiNbO3(I): Structural, thermodynamic, dielectric, and optical properties
Lingyuan Gao, Robert B. Wexler, Ruixiang Fei +1
Using first principles calculations, we study the ground-state structure of bulk proton-exchanged lithium niobate, which is also called hydrogen niobate and is widely used in waveg…
Intrinsic Fermi Surface Contribution to the Bulk Photovoltaic Effect
Lingyuan Gao, Zachariah Addison, E. J. Mele +1
We study the Fermi surface contribution to the nonlinear DC photocurrent at quadratic order in a spatially uniform optical field in the ultra-clean limit. In addition to shift and…
Large Bulk Piezophotovoltaic Effect of Monolayer -MoS
Aaron M. Schankler, Lingyuan Gao, Andrew M. Rappe
The bulk photovoltaic effect in noncentrosymmetric materials is an intriguing physical phenomenon that holds potential for high-efficiency energy harvesting. Here, we study the shi…
Phonon-Assisted Ballistic Current From First Principles Calculations
Zhenbang Dai, Aaron M. Schankler, Lingyuan Gao +2
The bulk photovoltaic effect (BPVE) refers to current generation due to illumination by light in a homogeneous bulk material lacking inversion symmetry. In addition to the intensiv…
The shift photovoltaic current and magnetically-induced bulk photocurrent in piezoelectric sillenite crystals
Aaron M. Burger, Lingyuan Gao, Radhe Agarwal +4
Recently, it has been shown how shift and ballistic currents in piezoelectric sillenite crystals BiGeO and BiSiO can be separated experimentally under t…
The tetragonal phase of CHNHPbI is strongly anharmonic
Rituraj Sharma, Zhenbang Dai, Lingyuan Gao +7
Halide perovskite (HP) semiconductors exhibit unique strong coupling between the electronic and structural dynamics. The high-temperature cubic phase of HPs is known to be entropic…
Halide perovskites under polarized light: Vibrational symmetry analysis using polarized Raman
Rituraj Sharma, Matan Menahem, Zhenbang Dai +9
In the last decade, hybrid organic-inorganic halide perovskites have emerged as a new type of semiconductor for photovoltaics and other optoelectronic applications. Unlike standard…