Flexible a-IGZO Phototransistor for Instantaneous and Cumulative UV-Exposure Monitoring for Skin Health

Flexible thin‐film phototransistors based on amorphous indium‐gallium‐zinc‐oxide semiconductor and a novel read‐out scheme allow for both real time and cumulative measurement of the ultraviolet light intensity. Furthermore, encapsulation in polydimethylsiloxane and lamination to human skin, as well as mechanical stability of the device is presented.

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