Semi‐Transparent, Micrometer Resolution p‐NiO/n‐ZnO Heterojunction Diode Temperature Sensors with Ultrathin Metal Anode

Various temperature sensitive biological mechanisms have been utilized for new biomedical engineering tools such as neuromodulation, cancer cell hyperthermia or photothermal therapy. Optically transparent and high spatio‐temporal resolution temperature sensors are needed to precisely analyze the bio...

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Bibliographic Details
Published in:Advanced materials technologies 2022-06, Vol.7 (6), p.n/a
Main Authors: Lee, Junhee, Hong, Nari, Hong, Woongki, Kim, Duhee, Hwang, Yujin, Jang, Jaewon, Kang, Hongki
Format: Article
Language:English
Subjects:
heterojunction diodes
temperature sensors
transparent electrodes
ultrathin metal films
wide bandgap semiconductors
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Summary:Various temperature sensitive biological mechanisms have been utilized for new biomedical engineering tools such as neuromodulation, cancer cell hyperthermia or photothermal therapy. Optically transparent and high spatio‐temporal resolution temperature sensors are needed to precisely analyze the biological effects that occur in response to the temperature changes. In this work, semi‐transparent p‐NiO/n‐ZnO heterojunction diode‐based temperature sensors with 100 µm‐diameter ultrathin transparent Au/Ag metal anodes is introduced. The fabricated diode temperature sensors accurately measure temperature changes from 25 to 80 °C, which is of significant interest in many biomedical engineering applications. The sensors also exhibit adequate transparency over the entire visible light spectrum for biomedical imaging including fluorescent microscopy. Low‐power operation of the temperature sensor (
ISSN:2365-709X
2365-709X
DOI:10.1002/admt.202100923