bulk single crystal the existence of a purely intrinsic "piezophotovoltaic" effect that leads to a linear increase in photovoltaic current density. The increase reaches 75% under a low uniaxial compressive stress of 10 MPa, corresponding to a strain of only 0.005%. The physical origin and symmetry properties of the effect are investigated, and its potential for strain-tuned efficiency increase in nonconventional photovoltaic materials is presented.
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Nadupalli et al. (2019) studied this question.
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