GAMMA RAY DETECTOR STRUCTURE BASED ON P-I-N JUNCTION OF PEROVSKITE AND CALIBRATION METHOD

    公开(公告)号:US20240186442A1

    公开(公告)日:2024-06-06

    申请号:US18026350

    申请日:2022-10-12

    CPC classification number: H01L31/115 G01T7/005 H01L31/02019 H01L31/032

    Abstract: A γ ray detector structure based on a p-i-n junction of perovskite and a calibration method are provided. An ultrathick intrinsic perovskite crystal grows by utilizing temperature inversion solution crystallization as a γ ray photon absorber, a p-type perovskite epitaxial layer grows on one side of the intrinsic perovskite crystal by adopting an epitaxial doping growing method, a n-type perovskite epitaxial layer grows on the other side, a dark state current and noise are inhibited by utilizing the p-i-n junction of perovskite, and a large-sized perovskite crystal is used to absorb and convert more γ photons. Detected signals at a cathode terminal and an anode terminal are measured simultaneously. The longitudinal interaction depths of the γ photons are calibrated according to the ratio of the two signals, and then detection events at the same depth are classified and counted respectively.

    SENSING DEVICE AND METHOD OF MANUFACTURING SENSING DEVICE

    公开(公告)号:US20240113236A1

    公开(公告)日:2024-04-04

    申请号:US18453283

    申请日:2023-08-21

    CPC classification number: H01L31/02005 H01L31/02019 H01L31/02164 H01L31/186

    Abstract: A sensing device including a substrate, a circuit layer, and a plurality of sensing units is provided. The circuit layer is disposed on the substrate and includes a plurality of driving circuits. The plurality of sensing units are disposed on the circuit layer, and each of the sensing units includes a supporting part and a sensing part. The supporting part is electrically connected to one of the plurality of driving circuits. The sensing part is electrically connected to the supporting part, and the sensing part is separated from a first cavity by the supporting part and the circuit layer. In a normal direction of the substrate, at least a portion of the supporting part is disposed between the circuit layer and the sensing part.

    Photoelectric conversion apparatus, imaging system, movable object, and semiconductor substrate

    公开(公告)号:US11937004B2

    公开(公告)日:2024-03-19

    申请号:US16751099

    申请日:2020-01-23

    CPC classification number: H04N25/75 H01L27/14634 H01L31/02019 H01L31/107

    Abstract: A photoelectric conversion apparatus includes a photodiode, a generation circuit, a first control circuit, and a second control circuit. The photodiode is configured to perform avalanche multiplication. The generation circuit is configured to generate a control signal. The first control circuit is configured to be controlled by the control signal to be in a standby state where the avalanche multiplication by the photodiode is possible and in a recharging state for returning the photodiode having performed the avalanche multiplication to the standby state. The second control circuit is configured to count a number of periods in which the avalanche multiplication has occurred among a plurality of periods of the standby state by using the control signal and a signal corresponding to an output of the photodiode.

    MONOLITHIC ELECTRICAL POWER CONVERTER FORMED WITH LAYERS

    公开(公告)号:US20230261132A1

    公开(公告)日:2023-08-17

    申请号:US18139715

    申请日:2023-04-26

    Applicant: Lumileds LLC

    CPC classification number: H01L31/173 H02M7/003 H01L31/024 H01L31/02019

    Abstract: An electrical power converter can include a plurality of layers disposed on a substrate. An emitter, including a first semiconductor junction that is formed at an interface between a first pair of adjacent layers, can produce light in response to a first electrical signal. An absorber, including a second semiconductor junction that is formed at an interface between a second pair of adjacent layers, can absorb at least some of the light. Circuitry can produce a second electrical signal in response to the absorbed light. The second electrical signal can be substantially proportional to the first electrical signal and can be electrically isolated from the first electrical signal. Because the light can remain within the layers during use, the electrical power converter can have a higher efficiency than a comparable device that propagates the light through at least one interface between air and a semiconductor material.

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