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An ultrafast self-powered semi-transparent pyro-phototronic device array based on room-temperature amorphous
Malkeshkumar Patel1,2, Shubham Umeshkumar Gupta1,2, Vivek Mohan More1,2
1Photoelectric and Energy Device Application Lab (PEDAL), Multidisciplinary Core Institute for Future Energies (MCIFE), Incheon National University, 119 Academy Rd Yeonsu, Incheon, 22012, Korea (Rep. of). joonkim@inu.ac.kr.
None:
We report a room-temperature-fabricated, self-powered, semi-transparent pyro-phototronic device array based on amorphous In2S3/NiO heterostructures. The amorphous In2S3 layer, confirmed by XRD, enables a transparent device with ∼36% visible transmittance, suitable for wearable and transparent electronics. Leveraging the pyroelectric effect at the In2S3/NiO interface and a transparent AgNW/ZnO electrode, the device exhibits ultrafast (<20 μs) photoresponse and responsivity up to 0.2 A W-1 under 420 nm illumination without external bias. The AgNW/ZnO electrode enhances photocurrent stability and reproducibility. These results demonstrate a low-temperature, versatile heterostructure platform for next-generation transparent, self-powered optoelectronic and wearable photo-communication devices.
