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Simultaneous Illumination-Imaging
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DOI：10.1002/admt.202100227.png)
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Abstract
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Micro multiple quantum well (MQW) III-nitride diodes usually function as micro light-emitting diodes, which are considered the next generation of display technology. In addition to both illumination and display, MQW III-nitride diodes in theory have the capability to both detect and modulate light. Here, proof that the III-nitride diode can simultaneously emit and detect light is experimentally confirmed by a wireless light communication system using two identical devices. The 20 x 20 MQW III-nitride diodes are monolithically integrated into a single chip and a real-time imaging system of transmitted images is established, which in practice can perform display, illumination, imaging, and simultaneous illumination-imaging operations. These functions can be software controlled and switched freely. This work may lead to a multifunctional display that merges millions of III-nitride diodes together to perform these functions at the same time.
Keywords:
20 x 20
data communication
micro-light-emitting diodes
MQW III-nitride diodes
simultaneous emission-detection behavior
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