Ultra-sensitive near-infrared graphene photodetectors with nanopillar antennas

Nanoscale ◽  
2017 ◽  
Vol 9 (44) ◽  
pp. 17459-17464 ◽  
Author(s):  
Yu Liu ◽  
Wen Huang ◽  
Tianxun Gong ◽  
Yue Su ◽  
Hua Zhang ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Carrier Mobility ◽  
Near Infrared ◽  
Optoelectronic Devices ◽  
Broad Absorption ◽  
High Carrier Mobility ◽  
High Carrier

Graphene has been demonstrated as a candidate for optoelectronic devices due to its broad absorption spectrum and ultra-high carrier mobility.

High-performance monolayer Na3Sb shrinking transistors: a DFT-NEGF study

Nanoscale ◽  
2020 ◽  
Vol 12 (36) ◽  
pp. 18931-18937
Author(s):  
Wenhan Zhou ◽  
Shengli Zhang ◽  
Shiying Guo ◽  
Hengze Qu ◽  
Bo Cai ◽  
...  
Keyword(s):  
High Performance ◽  
Carrier Mobility ◽  
2D Materials ◽  
Optoelectronic Devices ◽  
Next Generation ◽  
High Carrier Mobility ◽  
High Carrier

2D materials with direct bandgaps and high carrier mobility are considered excellent candidates for next-generation electronic and optoelectronic devices.

Photo-Electrical Properties of Trilayer MoSe2 Nanoflakes

NANO ◽  
2016 ◽  
Vol 11 (07) ◽  
pp. 1650082 ◽  
Author(s):  
Yang Hang ◽  
Qi Li ◽  
Wei Luo ◽  
Yanlan He ◽  
Xueao Zhang ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Carrier Mobility ◽  
Field Effect Transistor ◽  
Near Infrared ◽  
High Detection Rate ◽  
Infrared Wavelength ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Photo Response ◽  
Effect Transistor

The photo-electrical properties of trilayer MoSe2 nanoflakes, fabricated by mechanical exfoliation, were systematically studied in this paper. The trilayer MoSe2 nanoflakes are n-type and possess a high gate modulation (On/Off ratio is larger than 10[Formula: see text] and a relatively high carrier mobility (1.79[Formula: see text]cm[Formula: see text]. The field effect transistor (FET) device of MoSe2 shows sensitive photo response, high photoresponsivity ([Formula: see text][Formula: see text]mA/W), quick response time ([Formula: see text][Formula: see text]ms), high external quantum efficiency ([Formula: see text] and high detection rate ([Formula: see text] for red and near-infrared wavelength. These results showed that the device based on few-layer MoSe2 nanoflakes exhibited good photo-electrical properties, which might open a new way to develop few-layer MoSe2-based material in the application of FETs and optoelectronics.

scholarly journals Silicon Meet Graphene for a New Family of Near-Infrared Schottky Photodetectors

2019 ◽  
Author(s):  
Maurizio Casalino
Keyword(s):  
Carrier Mobility ◽  
Near Infrared ◽  
Strong Light ◽  
Broadband Absorption ◽  
New Family ◽  
High Carrier Mobility ◽  
Light Matter Interaction ◽  
High Carrier ◽  
Schottky Junctions

In recent years graphene has attracted much interest due to its unique properties of flexibility, strong light-matter interaction, high carrier mobility and broadband absorption. In addition, graphene can be deposited on many substrates including silicon with which is able to form Schottky junctions opening the path to the realization of near-infrared silicon photodetectors based on the internal photoemission effect where graphene play the role of the metal. In this work, we review the very recent progress of the near-infrared photodetectors based on Schottky junctions involving graphene. This new family of device promises to overcome the limitations of the Schottky photodetectors based on metals showing the potentialities to compare favorably with germanium photodetectors currently employed in silicon photonics.

Low band-gap copolymers derived from fluorinated isoindigo and dithienosilole: synthesis, properties and photovoltaic applications

2014 ◽  
Vol 5 (17) ◽  
pp. 4984-4992 ◽  
Author(s):  
Zhenguo Wang ◽  
Jie Zhao ◽  
Ying Li ◽  
Qiang Peng
Keyword(s):  
Band Gap ◽  
Carrier Mobility ◽  
Energy Levels ◽  
Broad Absorption ◽  
Low Band Gap ◽  
Photovoltaic Applications ◽  
Synthesis Properties ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Efficient Power

Fluorination of isoindigo affords a dithienosilole-based low band-gap copolymer with low-lying energy levels, strong and broad absorption, high carrier mobility as well as efficient power conversion efficiency.

scholarly journals Conductive Metallophthalocyanine Framework Films with High Carrier Mobility as Efficient Chemiresistors

2021 ◽  
Author(s):  
Hong-Cai Zhou ◽  
Yan Yue ◽  
Peiyu Cai ◽  
Xiaoyi Xu ◽  
Hanying Li ◽  
...  
Keyword(s):  
Carrier Mobility ◽  
High Carrier Mobility ◽  
High Carrier

scholarly journals Conductive Metallophthalocyanine Framework Films with High Carrier Mobility as Efficient Chemiresistors

2021 ◽  
Vol 60 (19) ◽  
pp. 10806-10813
Author(s):  
Yan Yue ◽  
Peiyu Cai ◽  
Xiaoyi Xu ◽  
Hanying Li ◽  
Hongzheng Chen ◽  
...  
Keyword(s):  
Carrier Mobility ◽  
High Carrier Mobility ◽  
High Carrier

Auxetic, flexible, and strain-tunable two-dimensional th-AlN for photocatalytic visible light water splitting with anisotropic high carrier mobility

2021 ◽  
Vol 9 (14) ◽  
pp. 4971-4977
Author(s):  
Mehmet Emin Kilic ◽  
Kwang-Ryeol Lee
Keyword(s):  
Optical Properties ◽  
Visible Light ◽  
Water Splitting ◽  
Carrier Mobility ◽  
Two Dimensional ◽  
Light Water ◽  
Photocatalytic Water Splitting ◽  
Electronic And Optical Properties ◽  
High Carrier Mobility ◽  
High Carrier

Tetrahexagonal AlN: a novel two-dimensional family for photocatalytic water splitting with exceptional mechanical, electronic, and optical properties.

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