{"title":"面向可见光通信的高响应柔性InGaN/GaN MQWs纳米膜光电探测器","authors":"Liang Chen;Wenliang Wang;Guoqiang Li","doi":"10.1109/LED.2024.3513417","DOIUrl":null,"url":null,"abstract":"Flexible InGaN-based photodetectors have broad application prospects in wearable biometric monitoring and visible light communication (VLC). However, flexible InGaN-based visible light photodetectors (VLPDs) still face challenges of low responsivity due to poor material quality and low light absorption efficiency. This work demonstrates a high-performance flexible VLPD integrating a TiO2/SiO2 distributed Bragg reflector (DBR) mirror with an InGaN/GaN MQWs nanomembrane. The optical field density is significantly enhanced by introducing the DBR mirror, resulting in a 22% improvement in PD’s responsivity (68.6 mA/W@-1 V). The photoresponse time (<inline-formula> <tex-math>$\\text {T} _{\\text {r}}$ </tex-math></inline-formula>/<inline-formula> <tex-math>$\\text {T} _{\\text {f}}\\text {)}$ </tex-math></inline-formula> of PD are <inline-formula> <tex-math>$24.4~\\mu $ </tex-math></inline-formula>s and <inline-formula> <tex-math>$6.1~\\mu $ </tex-math></inline-formula>s, respectively. The −3 dB bandwidth of PD is 106.2 kHz. The flexible PD exhibits good stability over multiple bending cycles and long periods in the air. A real-time and precise VLC system link has been established based on high-performance flexible PDs, achieving a data rate of 9 Kbps. This research offers a strategic approach for designing high-performance flexible VLPDs towards VLC.","PeriodicalId":13198,"journal":{"name":"IEEE Electron Device Letters","volume":"46 2","pages":"219-222"},"PeriodicalIF":4.5000,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-Responsivity Flexible InGaN/GaN MQWs Nanomembrane Photodetectors With DBR Mirror Toward Visible Light Communication\",\"authors\":\"Liang Chen;Wenliang Wang;Guoqiang Li\",\"doi\":\"10.1109/LED.2024.3513417\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Flexible InGaN-based photodetectors have broad application prospects in wearable biometric monitoring and visible light communication (VLC). However, flexible InGaN-based visible light photodetectors (VLPDs) still face challenges of low responsivity due to poor material quality and low light absorption efficiency. This work demonstrates a high-performance flexible VLPD integrating a TiO2/SiO2 distributed Bragg reflector (DBR) mirror with an InGaN/GaN MQWs nanomembrane. The optical field density is significantly enhanced by introducing the DBR mirror, resulting in a 22% improvement in PD’s responsivity (68.6 mA/W@-1 V). The photoresponse time (<inline-formula> <tex-math>$\\\\text {T} _{\\\\text {r}}$ </tex-math></inline-formula>/<inline-formula> <tex-math>$\\\\text {T} _{\\\\text {f}}\\\\text {)}$ </tex-math></inline-formula> of PD are <inline-formula> <tex-math>$24.4~\\\\mu $ </tex-math></inline-formula>s and <inline-formula> <tex-math>$6.1~\\\\mu $ </tex-math></inline-formula>s, respectively. The −3 dB bandwidth of PD is 106.2 kHz. The flexible PD exhibits good stability over multiple bending cycles and long periods in the air. A real-time and precise VLC system link has been established based on high-performance flexible PDs, achieving a data rate of 9 Kbps. This research offers a strategic approach for designing high-performance flexible VLPDs towards VLC.\",\"PeriodicalId\":13198,\"journal\":{\"name\":\"IEEE Electron Device Letters\",\"volume\":\"46 2\",\"pages\":\"219-222\"},\"PeriodicalIF\":4.5000,\"publicationDate\":\"2024-12-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Electron Device Letters\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10787227/\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Electron Device Letters","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10787227/","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
High-Responsivity Flexible InGaN/GaN MQWs Nanomembrane Photodetectors With DBR Mirror Toward Visible Light Communication
Flexible InGaN-based photodetectors have broad application prospects in wearable biometric monitoring and visible light communication (VLC). However, flexible InGaN-based visible light photodetectors (VLPDs) still face challenges of low responsivity due to poor material quality and low light absorption efficiency. This work demonstrates a high-performance flexible VLPD integrating a TiO2/SiO2 distributed Bragg reflector (DBR) mirror with an InGaN/GaN MQWs nanomembrane. The optical field density is significantly enhanced by introducing the DBR mirror, resulting in a 22% improvement in PD’s responsivity (68.6 mA/W@-1 V). The photoresponse time ($\text {T} _{\text {r}}$ /$\text {T} _{\text {f}}\text {)}$ of PD are $24.4~\mu $ s and $6.1~\mu $ s, respectively. The −3 dB bandwidth of PD is 106.2 kHz. The flexible PD exhibits good stability over multiple bending cycles and long periods in the air. A real-time and precise VLC system link has been established based on high-performance flexible PDs, achieving a data rate of 9 Kbps. This research offers a strategic approach for designing high-performance flexible VLPDs towards VLC.
期刊介绍：
IEEE Electron Device Letters publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanoelectronics, optoelectronics, photovoltaics, power ICs and micro-sensors.
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