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All-Optically Switchable Platform Based on Phase-Change Material for Light-Emitting Device
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DOI：10.1021/acsami.5c18195.png)
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Over the past decade, phase-change materials (PCMs) have found widespread use across photonics, optoelectronics, and electronics. Their ability to reversibly tune optical and electronic properties through phase switching is increasingly being leveraged to enhance device functionality. Here, we develop a new optoelectronic device that integrates a perovskite emitter with a phase-change material. We demonstrate reversible on/off control of electroluminescence emission through PCM phase switching as well as the ability to write distinct emission patterns by locally modifying the PCM phase without lithography. These results highlight a pathway toward new classes of fast-response LEDs with reconfigurable and repeatedly rewritable emission patterns.
Keyword:
light-emitting devices
halide perovskites
phase-change materials
Ge2Sb2Te5
all-optical switching
emissionpatterns
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论文数:
65
被引数:
1
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