Chinese Academy of Sciences

Schneider Electric It Corporation

Beken Corporation

Yunfeng Chen

Wei Lu

Peng Wang

Dawei Guo

Zhen Wang

Zhiqiang Jiang

Fang Wang

Xiaoshuang Chen

Wei-Shih Chiang

Peng Han

Weida Hu

Ting He

Fang Zhong

Jinshui Miao

Runzhang Xie

The present disclosure provides a momentum-matching and band-alignment van der Waals (vdW) infrared photodetector and a fabrication method thereof. The photodetector includes a substrate, a dielectric layer, a BiOSe layer, a black phosphorus (BP) layer, a metal source and a metal drain. The fabrication method includes: transferring, in a wet manner, the BiOSe layer grown on the mica substrate onto the substrate having the dielectric layer, transferring the mechanically exfoliated BP layer through a micro-region fixed-point transfer device onto the BiOSe layer, and separately fabricating the metal source and the metal drain on the BiOSe layer and the BP layer by processes such as electron beam exposure and electron beam evaporation, thereby forming the momentum-matching and band-alignment vdW infrared photodetector having a vertical structure.

Momentum-matching and band-alignment van der waals (vdW) infrared photodetector and fabrication method thereof

A method and apparatus for controlling distribution of power is provided. The apparatus comprises a plurality of power outlets including a master power outlet (M) and at least one controlled power outlet (S), a control circuit configured to sense a characteristic of power delivered to the master power outlet (M), a relay circuit coupled to the control circuit and a power supply configured to provide power to the control circuit and to the relay circuit. The power supply adjusts a voltage level on the base of the power delivered to the master power outlet. The apparatus can reduce energy consumption.

Method and apparatus for controlling distribution of power

A circuit comprises a transmitter port; a receiver port; an antenna port configured to transmit a signal from the transmitter port to antenna port and receive a signal at antenna port and pass to the receiver port; and a switch configured to switch whether the transmitter port or the receiver port is communicatively coupled to the antenna port. The switch comprises a plurality of NMOS FETs configured to switch between the transmitter port and the receiver port.

Switch configured to control a transceiver and a radio frequency system comprising the switch

Growing community of inventors

Shanghai, China

Yunfeng Chen