Results 61 to 70 of about 582 (118)

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

Advanced Functional Materials, Volume 36, Issue 39, 14 May 2026.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin, Gyeong Min Lee, Juyeon Shin, Jaewoong Kim, Tae Hyuk Kim, Do Yeon Kim, Myeong In Kim, Kyeounghak Kim, Jae Won Shim, In Hwan Jung   +9 more
wiley   +1 more source

Hot electron energy relaxation time in vanadium nitride superconducting film structures under THz and IR radiation

Scientific Reports, 2020
The paper presents the experimental results of studying the dynamics of electron energy relaxation in structures made of thin (d ≈ 6 nm) disordered superconducting vanadium nitride (VN) films converted to a resistive state by high-frequency radiation and
Ivan Pentin, Yury Vakhtomin, Vitaly Seleznev, Konstantin Smirnov   +3 more
doaj   +1 more source

InGaAs/AlGaAsSb Avalanche Photodiodes with sub 100fW/√Hz noise equivlent power at 22 to 52 °C [PDF]

Separate - Absorption - Multiplication Avalanche Photodiode (SAM-APD) made from Al0.85Ga0.15As0.56Sb0.44 (AlGaAsSb) avalanche region and InGaAs absorption region exhibits low dark current, excess noise, and Noise Equivalent Power (NEP) at room ...
Taylor-Mew, J., Petticrew, J.D., Ng, J.S., Tan, C.H., Li, L.   +4 more
core   +1 more source

Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions

Advanced Materials, Volume 38, Issue 27, 14 May 2026.
‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao, Yu Liu, Zhuofei Gan, Shiqi Hu, Jihyuk Yang, Zhuoran Wang, Mingjian Yuan, Wen‐Di Li, Ji Tae Kim   +8 more
wiley   +1 more source

Dirac Surface‐State Driven Broad Spectral Band Low Quantum Energy Photoresponse in Quaternary Topological BiSbSe2Te

Advanced Science, Volume 13, Issue 28, 18 May 2026.
Quaternary topological BiSbSe2Te are synthesized and demonstrates a broad spectral band photoresponse, ranging from infrared to terahertz and to millimeter waves, with a particular excellence on detection of low quantum energy terahertz photons. The observed photoresponse is attributed to the excitation of plasmonic nonequilibrium electrons originating
Tianning Zhang, Jinchao Tong, Jiantian Zhang, Peng Yu, Heng Luo, Luo Yan, Boyu Yang, Tiantian Huang, Junhui Ran, Yan Chen, Liujiang Zhou, Xin Chen, Ning Dai, Jianlu Wang, Junhao Chu   +14 more
wiley   +1 more source

Toward Next‐Generation High‐Speed Communication and Imaging: Solution‐Processed Sb2(S,Se)3/CdS Heterojunction for Ultrafast Self‐Powered Photodetector

Advanced Science, Volume 13, Issue 30, 28 May 2026.
A high‐quality solution‐processed Sb2(S,Se)3/CdS heterojunction is designed to overcome the intrinsic limitations of conventional photodetectors. The fabricated device achieves an excellent self‐powered performance, including a high responsivity of 0.6 A W−1, an ultrahigh specific detectivity of 7.68 × 1012 Jones, and a wide 3db bandwidth of 175 kHz ...
Xuhua Xiao, Yichao Wang, Jingxuan Bian, Hailong Wang, Yongqiang Wang, Jinpeng Xu, Junwei Chen   +6 more
wiley   +1 more source

HBN-Encapsulated, Graphene-based, Room-temperature Terahertz Receivers, with High Speed and Low Noise.

, 2020
Uncooled terahertz photodetectors (PDs) showing fast (ps) response and high sensitivity (noise equivalent power (NEP) 50 000 cm2 V-1 s-1) hexagonal boron nitride-encapsulated graphene, with asymmetric field enhancement produced by a bow-tie antenna ...
Purdie, DG, Lombardo, A, Viti, L, Vitiello, MS, ,, Ferrari, AC   +5 more
core   +2 more sources

Noise Characterization of All-Silicon Avalanche Photodetectors Operating at 1550 nm

IEEE Photonics Journal
In this work, we characterize the noise associated with the operation of all-silicon avalanche photodetectors integrated on a silicon-on-insulator platform, designed to operate at 1550 nm.
Yanran Xie, Ranjan Das, Andrew P. Knights   +2 more
doaj   +1 more source

Performance Optimization of Spin-Torque Microwave Detectors with Material and Operational Parameters

Journal of Nanotechnology, 2016
Sensitivity, bandwidth, and noise equivalent power (NEP) are important indicators of the performance of microwave detectors. The previous reports on spin-torque microwave detectors (STMDs) have proposed various approaches to increase the sensitivity ...
X. Li, Y. Zhou, Philip W. T. Pong
doaj   +1 more source

Microplastic addition has no detectable effect on ecosystem metabolism or diel dinitrogen flux in a large in‐lake mesocosm experiment under oligotrophic conditions

Limnology and Oceanography, Volume 71, Issue 5, May 2026.
Abstract Ecosystem metabolism (e.g., gross primary production [GPP], respiration [R], and net ecosystem production) integrates the activity of aerobic organisms and is an indicator of environmental change. Microplastics (i.e., particles 1–5 mm) are widespread in freshwater ecosystems and are colonized by biofilms and other organisms.
Raúl F. Lazcano, Emily Johnson, Scott Higgins, Kennedy Bucci, Rachel McNamee, Cody Veneruzzo, Desiree Langenfeld, Diane M. Orihel, Michael D. Rennie, Matthew Hoffman, Michael Paterson, Jennifer F. Provencher, Chelsea M. Rochman, Timothy J. Hoellein   +13 more
wiley   +1 more source