期刊
ORGANIC ELECTRONICS
卷 103, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.orgel.2022.106473
关键词
Organic semiconductor; Rubrene crystal; Organic sensor; Sensing property; Flexible electronics
资金
- National Natural Science Foundation of China [62105176]
In this study, a flexible wearable electronic skin is used to sense non-touch objects and investigate the sensing properties of charged objects. The results demonstrate that the sensing response of the organic device depends on the charge quantity of the stimuli, rather than the applied pressure.
A flexible wearable electronic skin (e-skin) that is able to sense non-touch objects is strongly required for the improvement and advancement of next-generation high-performance sensing systems. Here, a facile two terminal organic device is employed for studying the sensing properties of charged objects including proximity and contact stimuli. By adjusting the amount of charges on the stimuli, the sensing response of the organic device was confirmed to rely on the charge quantity of stimuli rather than the applied pressure. In addition, the carrier concentration in the organic semiconductor is effectively accumulated or depleted, depending on the carrier type in the semiconductor and the polarity of voltage at the atomic force microscope (AFM) tip. These results show a potential application in ultrahigh-precision automatic operation, for example, humanoid robots to sensitively detect and safely grab a charged-object without damage.
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