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   Articles with "detectivity" as a keyword



Elucidating the Detectivity Limits in Shortwave Infrared Organic Photodiodes

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recommendations! Published in 2018 at "Advanced Functional Materials"

DOI: 10.1002/adfm.201800391

Abstract: While only few organic photodiodes have photoresponse past 1 µm, novel shortwave infrared (SWIR) polymers are emerging, and a better understanding of the limiting factors in narrow bandgap devices is critically needed to predict and… read more here.

Keywords: detectivity; shortwave infrared; limits shortwave; detectivity limits ... See more keywords

Multidimensional Perovskites for High Detectivity Photodiodes

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recommendations! Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202205261

Abstract: Low‐dimensional perovskites attract increasing interest due to tunable optoelectronic properties and high stability. Here, it is shown that perovskite thin films with a vertical gradient in dimensionality result in graded electronic bandgap structures that are… read more here.

Keywords: detectivity photodiodes; detectivity; high detectivity; perovskites high ... See more keywords

Conjugated Polymer Heteroatom Engineering Enables High Detectivity Symmetric Ambipolar Phototransistors

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recommendations! Published in 2024 at "Advanced Materials"

DOI: 10.1002/adma.202402568

Abstract: Solution‐processed high‐performing ambipolar organic phototransistors (OPTs) can enable low‐cost integrated circuits. Here, a heteroatom engineering approach to modify the electron affinity of a low band gap diketopyrrolopyrole (DPP) co‐polymer, resulting in well‐balanced charge transport, a… read more here.

Keywords: detectivity; polymer heteroatom; conjugated polymer; engineering ... See more keywords

Solution‐Processed High‐Quality Cesium Lead Bromine Perovskite Photodetectors with High Detectivity for Application in Visible Light Communication

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recommendations! Published in 2020 at "Advanced Optical Materials"

DOI: 10.1002/adom.201901735

Abstract: Cesium lead bromide (CsPbBr3) perovskite photodetectors (PDs) are attractive for applications in visible light communication (VLC) due to ultra‐high detectivity and fast response speed. However, the fabrication of high‐quality CsPbBr3 polycrystalline films using solution‐based process… read more here.

Keywords: perovskite photodetectors; detectivity; pds; solution ... See more keywords

Photomultiplication‐Type Organic Photodetectors for Near‐Infrared Sensing with High and Bias‐Independent Specific Detectivity

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recommendations! Published in 2022 at "Advanced Science"

DOI: 10.1002/advs.202105113

Abstract: Highly responsive organic photodetectors allow a plethora of applications in fields like imaging, health, security monitoring, etc. Photomultiplication‐type organic photodetectors (PM‐OPDs) are a desirable option due to their internal amplification mechanism. However, for such devices,… read more here.

Keywords: photomultiplication type; organic photodetectors; specific detectivity; type organic ... See more keywords
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Cross‐Bar SnO 2 ‐NiO Nanofiber‐Array‐Based Transparent Photodetectors with High Detectivity

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recommendations! Published in 2019 at "Advanced electronic materials"

DOI: 10.1002/aelm.201901048

Abstract: An interlaced textile structure has been employed to design a transparent p-n junction-based photodetector. The device consisting of aligned n-SnO2 and p-NiO nanofibers was prepared via a mature electro-spinning process which is suitable for commercial… read more here.

Keywords: sno nio; detectivity; cross bar; bar sno ... See more keywords

Rational Design of WSe2/WS2/WSe2 Dual Junction Phototransistor Incorporating High Responsivity and Detectivity

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recommendations! Published in 2022 at "Small Methods"

DOI: 10.1002/smtd.202200583

Abstract: The excellent semiconducting properties and ultrathin morphological characteristics allow van der Waals (vdW) heterostructures based on 2D materials to be promising channel materials for the next‐generation optoelectronic devices, especially in photodetectors. Although various 2D heterostructure‐based… read more here.

Keywords: high responsivity; responsivity detectivity; ws2 wse2; detectivity ... See more keywords

Rapid Response Solar Blind Deep UV Photodetector with High Detectivity Based On Graphene:N/βGa2 O3 :N/GaN p-i-n Heterojunction Fabricated by a Reversed Substitution Growth Method.

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recommendations! Published in 2023 at "Small methods"

DOI: 10.1002/smtd.202300041

Abstract: This work reports a high-detectivity solar-blind deep ultraviolet photodetector with a fast response speed, based on a nitrogen-doped graphene/βGa2 O3 /GaN p-i-n heterojunction. The i layer of βGa2 O3 with a Fermi level lower than… read more here.

Keywords: ga2; heterojunction; detectivity; response ... See more keywords

ZnO ultraviolet photodetectors with an extremely high detectivity and short response time

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recommendations! Published in 2019 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2019.03.110

Abstract: Abstract ZnO thin films have been prepared by atomic layer deposition for ultraviolet photodetection with metal-semiconductor-metal (MSM) structure. The innovation of rapid thermal annealing treatment can modulate the carrier concentration of the ZnO thin films,… read more here.

Keywords: response; detectivity; photodetectors extremely; ultraviolet photodetectors ... See more keywords

Revealing Additional Size-Dependent Defect Suppression Channels Governing Detectivity in InAs Colloidal Quantum Dot Photodiodes.

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recommendations! Published in 2025 at "Nano letters"

DOI: 10.1021/acs.nanolett.5c04477

Abstract: Indium arsenide (InAs) colloidal quantum dot (CQD) photodiodes combine tunable bandgaps with solution processing, offering a versatile platform for infrared detection. Using high-dynamic-range external quantum efficiency (HDR-EQE) measurements, we probe defect signatures and quantify their… read more here.

Keywords: quantum dot; detectivity; size; inas colloidal ... See more keywords

Limiting Factors of Detectivity in Near-Infrared Colloidal Quantum Dot Photodetectors.

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recommendations! Published in 2022 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.2c06620

Abstract: Lead sulfide colloidal quantum dots (PbS CQDs) have shown great potential in photodetectors owing to their promising optical properties, especially their strong and tunable absorption. However, the limitation of the specific detectivity (D*) in CQD… read more here.

Keywords: noise; colloidal quantum; near infrared; detectivity ... See more keywords