Sensory Adaptation and Neuromorphic Phototransistors Based on CsPb(Br1–xIx)3 Perovskite and MoS2 Hybrid Structure

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Sensory Adaptation and Neuromorphic Phototransistors Based on CsPb(Br1–xIx)3 Perovskite and MoS2 Hybrid Structure:

  




Sensory adaptation is an essential part of biological neural systems for sustaining human life. Using the light-induced halide phase segregation of CsPb(Br1–xIx)3 perovskite, we introduce neuromorphic phototransistors that emulate human sensory adaptation. The phototransistor based on a hybrid structure of perovskite and transition-metal dichalcogenide (TMD) emulates the sensory adaptation in response to a continuous light stimulus, similar to the neural system. The underlying mechanism for the sensory adaptation is the halide segregation of the mixed halide perovskites. The phase separation under visible-light illumination leads to the segregation of I and Br into separate iodide- and bromide-rich domains, significantly changing the photocurrent in the phototransistors. The devices are reversible upon the removal of the light stimulation, resulting in near-complete recovery of the photosensitivity before the phase segregation (sensitivity recovery of 96.65% for 5 min rest time). The proposed phototransistor based on the perovskite–TMD hybrid structure can be applied to other neuromorphic devices such as neuromorphic photonic devices, intelligent sensors, and selective light-detecting image sensors.


#sensors#temperature#pressuresensors#wsn#wifi#gassensors#biosensors#vibrationsensors#humidtysensor#neuromorphic#parkingsensors#nanosensors#MOSsensors#wireless#transducer#measuring#sensing#WSN#detectors#thermistors#machinary#ulurasonic#proximitysensor#lightsensor#computer#imagesensor

5th Edition of International Conference on Sensing Technology | 29-30 May 2023 | Brazil

Abstract Submission:https://x-i.me/gaycon

Award Nomination:https://x-i.me/gaynom

Member Nomination:https://x-i.me/gaymem

Visit: http://sensors-conferences.sciencefather.com/

For Enquiries: sensors@sciencefather.com


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