Single CuTCNQ charge transfer complex nanowire as ultra high responsivity photo-detector

Single Si nanowire (diameter ≤ 100 nm) based polarization sensitive near-infrared photodetector with ultra-high responsivity.

We report the fabrication and optical response of boron-doped single silicon nanowire-based metal-semiconductor-metal photodetector. Typical single nanowire devices with diameter of ∼80-100 nm and electrode spacing of ∼1 μm were made using electron-beam lithography from nanowires, grown by a metal-assisted chemical etching process. A high responsivity, of the order of 10(4) A W(-1), was observe...

Superconducting-nanowire single-photon-detector linear array

An ultra-fast superconducting Nb nanowire single-photon detector for soft X-rays

Silicon-graphene conductive photodetector with ultra-high responsivity

Graphene is attractive for realizing optoelectronic devices, including photodetectors because of the unique advantages. It can easily co-work with other semiconductors to form a Schottky junction, in which the photo-carrier generated by light absorption in the semiconductor might be transported to the graphene layer efficiently by the build-in field. It changes the graphene conduction greatly a...

Superconducting Nanowire Single photon detector (SNSPD) for Quantum Information

In the beginning of this century, a new type of detector, superconducting nanowire single photon detector (SNSPD or SSPD) joined the family of superconducting sensors and detectors. Soon, it has been turning to be one of the most important players in this family since it surpasses the semiconducting single photon detectors (APD: avalanche photodiode and PMT: photo multiplier tube) with many adv...