Highly ordered bimolecular crystalline blends for low-noise and high-detectivity polymeric photodiodes

2016 ◽  
Vol 4 (39) ◽  
pp. 9197-9202 ◽  
Author(s):  
Kyu Min Sim ◽  
Seongwon Yoon ◽  
Dae Sung Chung
Keyword(s):  
Quantum Efficiency ◽  
High Performance ◽  
Low Noise ◽  
High Quantum Efficiency ◽  
Noise Current ◽  
High Quantum

Suppressing noise current while maintaining high quantum efficiency is essential for realizing high-performance photodiodes.

Back-illuminated GaN/AlGaN heterojunction photodiodes with high quantum efficiency and low noise

1998 ◽  
Vol 73 (8) ◽  
pp. 1086-1088 ◽  
Author(s):  
Wei Yang ◽  
Thomas Nohova ◽  
Subash Krishnankutty ◽  
Robert Torreano ◽  
Scott McPherson ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Low Noise ◽  
High Quantum Efficiency ◽  
High Quantum ◽  
Back Illuminated

A self-assembled 3D Pt/TiO2 architecture for high-performance photocatalytic hydrogen production

Nanoscale ◽  
2015 ◽  
Vol 7 (5) ◽  
pp. 1610-1615 ◽  
Author(s):  
Haiyan Li ◽  
Hongwen Yu ◽  
Lei Sun ◽  
Jiali Zhai ◽  
Xuerong Han
Keyword(s):  
Hydrogen Production ◽  
Quantum Efficiency ◽  
High Performance ◽  
High Quantum Efficiency ◽  
Photocatalytic Hydrogen Production ◽  
High Quantum ◽  
Self Assembled

A 3D Pt/TiO2 architecture assembled from 1D nanowires has been designed which exhibits a high quantum efficiency (34%) for photocatalytic hydrogen production from water.

scholarly journals High Quantum Efficiency and Broadband Photodetector Based on Graphene/Silicon Nanometer Truncated Cone Arrays

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6146
Author(s):  
Jijie Zhao ◽  
Huan Liu ◽  
Lier Deng ◽  
Minyu Bai ◽  
Fei Xie ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Performance ◽  
Light Trapping ◽  
Surface Recombination ◽  
Response Speed ◽  
Transparent Electrode ◽  
High Quantum Efficiency ◽  
High Quantum ◽  
Truncated Cone ◽  
Silicon Based

Light loss is one of the main factors affecting the quantum efficiency of photodetectors. Many researchers have attempted to use various methods to improve the quantum efficiency of silicon-based photodetectors. Herein, we designed highly anti-reflective silicon nanometer truncated cone arrays (Si NTCAs) as a light-trapping layer in combination with graphene to construct a high-performance graphene/Si NTCAs photodetector. This heterojunction structure overcomes the weak light absorption and severe surface recombination in traditional silicon-based photodetectors. At the same time, graphene can be used both as a broad-spectrum absorption layer and as a transparent electrode to improve the response speed of heterojunction devices. Due to these two mechanisms, this photodetector had a high quantum efficiency of 97% at a wavelength of 780 nm and a short rise/fall time of 60/105µs. This device design promotes the development of silicon-based photodetectors and provides new possibilities for integrated photoelectric systems.

scholarly journals The 1-Megapixel pnCCD detector for the Small Quantum Systems Instrument at the European XFEL: system and operation aspects

2021 ◽  
Vol 28 (2) ◽  
pp. 576-587
Author(s):  
Markus Kuster ◽  
Karim Ahmed ◽  
Kai-Erik Ballak ◽  
Cyril Danilevski ◽  
Marko Ekmedžić ◽  
...  
Keyword(s):  
Quantum System ◽  
Quantum Efficiency ◽  
Imaging Techniques ◽  
High Sensitivity ◽  
Low Noise ◽  
Nano Particles ◽  
Single Photons ◽  
High Quantum Efficiency ◽  
High Quantum ◽  
Small Quantum

The X-ray free-electron lasers that became available during the last decade, like the European XFEL (EuXFEL), place high demands on their instrumentation. Especially at low photon energies below 1 keV, detectors with high sensitivity, and consequently low noise and high quantum efficiency, are required to enable facility users to fully exploit the scientific potential of the photon source. A 1-Megapixel pnCCD detector with a 1024 × 1024 pixel format has been installed and commissioned for imaging applications at the Nano-Sized Quantum System (NQS) station of the Small Quantum System (SQS) instrument at EuXFEL. The instrument is currently operating in the energy range between 0.5 and 3 keV and the NQS station is designed for investigations of the interaction of intense FEL pulses with clusters, nano-particles and small bio-molecules, by combining photo-ion and photo-electron spectroscopy with coherent diffraction imaging techniques. The core of the imaging detector is a pn-type charge coupled device (pnCCD) with a pixel pitch of 75 µm × 75 µm. Depending on the experimental scenario, the pnCCD enables imaging of single photons thanks to its very low electronic noise of 3 e− and high quantum efficiency. Here an overview on the EuXFEL pnCCD detector and the results from the commissioning and first user operation at the SQS experiment in June 2019 are presented. The detailed descriptions of the detector design and capabilities, its implementation at EuXFEL both mechanically and from the controls side as well as important data correction steps aim to provide useful background for users planning and analyzing experiments at EuXFEL and may serve as a benchmark for comparing and planning future endstations at other FELs.

CCD Based X-ray Detectors

1990 ◽  
Vol 34 ◽  
pp. 357-362 ◽  
Author(s):  
Mark W. Tate
Keyword(s):  
Synchrotron Radiation ◽  
Quantum Efficiency ◽  
Low Noise ◽  
X Ray Diffraction ◽  
High Quantum Efficiency ◽  
X Ray ◽  
High Quantum ◽  
Radiation Sources ◽  
Technology Improvement ◽  
Detector Technology

The advent of intense synchrotron radiation sources for X-ray diffraction has made many otherwise difficult experiments feasible. The increased intensity will not he fully utilized, however, unless there are farther developments in detector technology. Improvement in detector characteristics will, of course, aid those using laboratory sources as well. For instance, construction of low noise, high, quantum efficiency detectors will reduce integration times and enable one to detect weak signals.

A stereoregular β-dicyanodistyrylbenzene (β-DCS)-based conjugated polymer for high-performance organic solar cells with small energy loss and high quantum efficiency

2017 ◽  
Vol 5 (32) ◽  
pp. 16681-16688 ◽  
Author(s):  
Jun-Mo Park ◽  
Dong Won Kim ◽  
Hae Yeon Chung ◽  
Ji Eon Kwon ◽  
Seung Hwa Hong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Quantum Efficiency ◽  
Organic Solar Cells ◽  
Conjugated Polymer ◽  
High Performance ◽  
Small Energy ◽  
High Quantum Efficiency ◽  
High Quantum

We report a new β-dicyanodistyrylbenzene (β-DCS)-based polymer (PBDCS), which enables efficient fullerene and non-fullerene organic solar cells with low Eloss and high EQE.

64-channels low noise FPGA read-out electronics for segmented MA-PMT with High Quantum efficiency

2011 ◽  
Vol 215 (1) ◽  
pp. 328-332 ◽  
Author(s):  
A. Fabbri ◽  
F. de Notaristefani ◽  
V.O. Cencelli ◽  
P. Bennati ◽  
M.N. Cinti ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Low Noise ◽  
High Quantum Efficiency ◽  
High Quantum

New low-noise high-quantum-efficiency speckle imaging system

1998 ◽  
Author(s):  
Elliott P. Horch ◽  
Zoran Ninkov ◽  
William F. van Altena
Keyword(s):  
Quantum Efficiency ◽  
Imaging System ◽  
Low Noise ◽  
Speckle Imaging ◽  
High Quantum Efficiency ◽  
High Quantum
Sign in / Sign up

Export Citation Format

Share Document