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
Alcohol‐Soluble n‐Type Polythiophenes as Cathode Interlayer in Organic Photodetectors for Hole Blocking
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202312502
Abstract: For organic photodetectors (OPDs), cathode interlayer (CIL) with low‐lying highest occupied molecular orbital (EHOMO) energy level is required to reduce dark current density (Jd). In this study, toward application as CIL in OPDs, an alcohol‐processable… read more here.
Keywords: type; dark current; cathode interlayer; organic photodetectors ... 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
Low Dark Current, High Responsivity, and Self‐Powered MoTe2 Photodetector Integrated With a Thin Film Lithium Niobate Waveguide
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Optical Materials"
DOI: 10.1002/adom.202401822
Abstract: Thin film lithium niobate is one of the most crucial platforms in the next generation of integrated optoelectronics because of its ability to integrate tight optical confinement, low optical loss, and active optical functions. A… read more here.
Keywords: film lithium; dark current; thin film; lithium niobate ... See more keywords
Suppress Dark‐Current for High‐Photoresponse MoS2 Transistor
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Optical Materials"
DOI: 10.1002/adom.202402926
Abstract: Due to the atomic thickness of 2D MoS2 film, the electronic structure is easily tunable by electric field and exhibits abundant property. However, due to the limit capacitance of inorganic dielectric, the tunability is still… read more here.
Keywords: transistor; dark current; passivation layer; photoresponse ... See more keywords
Band Tailoring Enabled Perovskite Devices for X‐Ray to Near‐Infrared Photodetection
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Science"
DOI: 10.1002/advs.202414259
Abstract: Perovskite semiconductors have shown significant promise for photodetection due to their low effective carrier masses and long carrier lifetimes. However, achieving balanced detection across a broad spectrum—from X‐rays to infrared—within a single perovskite photodetector presents… read more here.
Keywords: detection; dark current; band; band tailoring ... See more keywords
Achieving Ultra-Low Dark Current in β-Ga2O3 Photoconductive Photodetectors for Anti-Interference Optical Human-Machine Interaction Systems via Gallium Interstitials Engineering.
Sign Up to like & getrecommendations! Published in 2025 at "Small"
DOI: 10.1002/smll.202501442
Abstract: Driven by the demand for high-throughput data transmission, the development of cost-effective and highly sensitive photoconductive photodetectors has become imperative to advance optical communication systems, thereby playing a crucial role in the realm of human-machine… read more here.
Keywords: machine interaction; dark current; human machine; ga2o3 ... See more keywords
Aluminum Doping and Nanocolumnar Structure Enable Dark-Current Suppressed PbS Nanocrystalline Photodiode for Near-Infrared Detection and Imaging.
Sign Up to like & getrecommendations! Published in 2025 at "Small"
DOI: 10.1002/smll.202503935
Abstract: Near-Infrared (NIR) detectors are crucial for applications like autonomous driving, food safety, and disease diagnosis. However, conventional photodetectors rely on complex epitaxial processes and costly single-crystalline substrates yet still suffer from high dark current and… read more here.
Keywords: photodiode; pbs nanocrystalline; nanocolumnar structure; 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