Self‐Powered Organic Photodetectors with High Detectivity for Near Infrared Light Detection Enabled by Dark Current Reduction
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202106326
Abstract: Organic photodetectors (OPDs) for near infrared (NIR) light detection represents cutting‐edge technology for optical communication, environmental monitoring, biomedical imaging, and sensing. Herein, a series of self‐powered OPDs with high detectivity are constructed by the sequential… read more here.
Keywords: dark current; organic photodetectors; light detection; near infrared ... See more keywords
Significant Dark Current Suppression in Organic Photodetectors Using Side Chain Fluorination of Conjugated Polymer
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202108026
Abstract: Dark current density (Jdark) is the most important factors determining signal‐to‐noise ratio, linear dynamic range and detectivity (D*) of organic photodetectors (OPDs). However, the solution‐processed OPDs generally suffer from high Jdark under bias because the… read more here.
Keywords: side chain; dark current; organic photodetectors; jdark ... See more keywords
Identification of the Origin of Ultralow Dark Currents in Organic Photodiodes
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202209598
Abstract: Organic bulk heterojunction photodiodes (OPDs) attract attention for sensing and imaging. Their detectivity is typically limited by a substantial reverse bias dark current density (Jd). Recently, using thermal admittance or spectral photocurrent measurements, Jd has… read more here.
Keywords: gap states; origin ultralow; ultralow dark; charge generation ... See more keywords
Vacuum‐Processed Small Molecule Organic Photodetectors with Low Dark Current Density and Strong Response to Near‐Infrared Wavelength
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Optical Materials"
DOI: 10.1002/adom.202000519
Abstract: A near‐infrared photodetector with optimized performance is reported using varied thickness (20, 40, 60, and 80 nm) of the active layer comprising chloroaluminium phthalocyanine (ClAlPc) and fullerene (C70) at the ratio of 1:3, and TAPC:10%… read more here.
Keywords: current density; response; small molecule; dark current ... See more keywords
Predictable quantum efficient detector for low optical flux measurements
Sign Up to like & getrecommendations! Published in 2020 at "Optical Review"
DOI: 10.1007/s10043-020-00580-1
Abstract: The predictable quantum efficient detector (PQED) is a primary standard of optical power, which utilizes two custom-made induced-junction photodiodes that are mounted in a wedged trap configuration for the reduction of reflectance losses. PQED photodiodes… read more here.
Keywords: predictable quantum; efficient detector; dark current; quantum efficient ... See more keywords
Dark current transport mechanism associated with acceptor concentration in GaAs-based blocked-impurity-band (BIB) detectors
Sign Up to like & getrecommendations! Published in 2017 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-017-1258-2
Abstract: Dark current transport mechanism associated with acceptor concentration in GaAs-based blocked-impurity-band (BIB) detectors has been investigated. Device structure, numerical models and simulation techniques are described in detail. By careful model and parameter calibration, the numerical… read more here.
Keywords: bib detectors; gaas based; acceptor concentration; transport ... See more keywords
Progress of MCT Detector Technology at AIM Towards Smaller Pitch and Lower Dark Current
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Electronic Materials"
DOI: 10.1007/s11664-017-5596-4
Abstract: We present our latest results on cooled p-on-n planar mercury cadmium telluride (MCT) photodiode technology. Along with a reduction in dark current for raising the operating temperature (Top), AIM INFRAROT-MODULE GmbH (AIM) has devoted its… read more here.
Keywords: operating temperature; aim; technology; dark current ... See more keywords
HgCdTe Diode Dark Current Modeling: Rule 07 Revisited for LW and VLW
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Electronic Materials"
DOI: 10.1007/s11664-019-07299-z
Abstract: Rule 07 is very convenient for dark current estimation of high-quality HgCdTe P-on-n photodiodes used in focal-plane arrays for science imaging, in which the diode behavior is dominated by the n-type absorption layer. Its popularity is… read more here.
Keywords: temperature; dark current; hgcdte diode; wave infrared ... See more keywords
Ultraviolet photodetector based on Au doped TiO2 nanowires array with low dark current
Sign Up to like & getrecommendations! Published in 2019 at "Optoelectronics Letters"
DOI: 10.1007/s11801-019-8106-5
Abstract: Au nanoparticles doped TiO2 nanowires (NWs) arrays with an average diameter of 100 nm were synthesized through a facile solvothermal method. Thereafter, metal/semiconductor/metal (MSM) structured detectors with Ag electrodes were fabricated on these NWs. The… read more here.
Keywords: dark current; doped tio2; tio2 nanowires; ultraviolet photodetector ... See more keywords
Dark current analysis of an InAs/GaSb type II superlattice infrared photodiode with SiO2 passivation
Sign Up to like & getrecommendations! Published in 2021 at "Journal of the Korean Physical Society"
DOI: 10.1007/s40042-021-00137-8
Abstract: In this study, we present the current–voltage (I–V) characteristics of a 10 ML InAs/10 ML GaSb type-II superlattice (T2SL) with p-i-n structures for mid-infrared detection. At a negative bias and a temperature of 50 mV and… read more here.
Keywords: dark current; passivation; inas gasb; type superlattice ... See more keywords
Self-assembly In2Se3/SnSe2 heterostructure array with suppressed dark current and enhanced photosensitivity for weak signal
Sign Up to like & getrecommendations! Published in 2020 at "Science China Materials"
DOI: 10.1007/s40843-020-1354-2
Abstract: Functional van der Waals (vdWs) heterostructures based on layered materials have shown tremendous potential in next-generation optoelectronic devices. To date, numerous vdWs heterostructures have been investigated based on stacking or epitaxial growth technology. However, the… read more here.
Keywords: in2se3 snse2; snse2 heterostructure; array; self assembly ... See more keywords