What question did this study set out to answer?

This research aims to explore the optoelectronic properties of CuInP2S6/MoSe2 heterostructures for photodetector applications.

January 25, 2026

Self-powered photodetector based on CuInP2S6/MoSe2heterostructure.

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Research demonstrates improved responsivity and detectivity in self-powered photodetectors using ferroelectric heterostructures.

This research aims to explore the optoelectronic properties of CuInP2S6/MoSe2 heterostructures for photodetector applications.
Fabricated heterostructures using the scotch-tape method
Investigated optoelectronic properties under varying gate voltages
Measured responsivity and detectivity of the resultant devices.
Achieved a responsivity improvement of about 3902%, reaching 5.57 A/W
Detectivity improved by 1785%, with a maximum of 6.66 × 10^8 Jones
Under gate voltage, a self-powered mode with responsivity of 170.86 mA/W and detectivity of 2.66 × 10^9 Jones was attained.

Pan et al. (2026) studied this question.

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