III-Nitride Microchips for Sugar Concentration Detection

Chen, Jian; Yin, Jigang; An, Xiaoshuai; Liang, Chen; Luan, Zhu; Li, Kwai Hei

doi:10.1109/jsen.2021.3138746

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…The existing optoelectronic integration applications include waveguides, sensors, etc. [13][14][15][16] It is worth noting that because of the overlap between its electroluminescence spectrum and spectrum responsivity (SR), that is, the light that partially overlaps with the emission spectrum band can be detected, the MQW-LED can absorb the high-energy photons from another same LED and make the carriers of the internal structure flow out, thus generating photocurrent.…”

Section: Introductionmentioning

confidence: 99%

LED with automatic brightness control utilizing the dual function of simultaneous light emission and detection

Zhu

Takata

Shi

et al. 2023

14th International Photonics and Optoelectronics Meetings (POEM 2022)

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Due to the growing demand for devices supporting the Internet of Things (IoT), it's necessary to develop integrated chips with small size, fast response and high robustness to provide the application of the IoT. In addition to light emission, GaN-based quantum well diodes (QWDs) can convert light into electricity via the photovoltaic effect, simultaneously exhibiting inherent light emission and detection functionalities. Here, we report a LED with automatic brightness control utilizing the dual function of simultaneous light emission and detection, which is implemented on an III-nitride-on-silicon. Due to the inherent rapid photoelectric conversion of MQW diode, the diode is able to communicate with another. Using one MQW diode as the emitter, and another MQW diode as receiver, a visible light communication link was established. The overlap between the emission and detection spectra demonstrated that simultaneous emission-detection phenomenon also exists in MQW diodes. When the LED is modulated to emit light and we shine it with another modulated light beam at the same time, the LED operates under the simultaneous emissiondetection mode. The MQW diode converted external light into photocurrent as feedback to control circuit, by programming in one-chip computer, we can control the feedback circuit to turn the diode brighter or darker according to our willing. Utilizing the dual function of simultaneous light emission and detection of the MQW diode, the proposed MQW diode on its own can achieve real-time regulation of brightness without an external photodetector by integrating a programmed circuit.

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Section: Introductionmentioning

confidence: 99%

LED with automatic brightness control utilizing the dual function of simultaneous light emission and detection

Zhu

Takata

Shi

et al. 2023

14th International Photonics and Optoelectronics Meetings (POEM 2022)

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“…To enhance the compactness and robustness of the sensing system, minimizing external components is an inevitable trend. On-chip integration of optical devices on the GaN-based material platform is a promising approach, which has been introduced to realize functional communication and sensing systems [9], [10]. This letter reports the development of a viscosity sensor using a monolithic integrated GaN device that offers the essential features of light emission and detection.…”

mentioning

confidence: 99%

Viscosity Sensors Based on III-Nitride Optical Devices Integrated With Droplet Sliding Channels

Yang

Luo

et al. 2022

IEEE Electron Device Lett.

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In this letter, we demonstrate a miniature viscosity sensor based on GaN-on-sapphire optical device integrated with an inclined flow channel. The monolithic device, consisting of a pair of GaN diodes responsible for light emission and detection, can monitor droplet sliding. Without the need for external optical components, the proposed elegant design of a few centimeters in size is capable of distinguishing the liquid viscosities from 2 to 600 mPa•s in tens of seconds. The proposed optical sensor exhibits attractive features, such as compactness, low cost, ease of operation, and small liquid volume required, making it suitable for practical applications in liquid viscosity measurement.

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Ultra-Sensitive Plasmonic Sensor for Detecting Honey Adulteration with III–V Nitride and Tungsten Disulfide

Ashrafi,

Mohanty

2024

Sens Imaging

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III-Nitride Microchips for Sugar Concentration Detection

Cited by 3 publications

References 22 publications

LED with automatic brightness control utilizing the dual function of simultaneous light emission and detection

LED with automatic brightness control utilizing the dual function of simultaneous light emission and detection

Viscosity Sensors Based on III-Nitride Optical Devices Integrated With Droplet Sliding Channels

Ultra-Sensitive Plasmonic Sensor for Detecting Honey Adulteration with III–V Nitride and Tungsten Disulfide

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