Literature DB >> 26497945

Ultrasensitive Phototransistors Based on Few-Layered HfS2.

Kai Xu1, Zhenxing Wang1, Feng Wang1, Yun Huang1, Fengmei Wang1, Lei Yin1, Chao Jiang1, Jun He1.   

Abstract

An ultrathin HfS2 -based ultrasensitive phototransistor is systematically studied. Au-contacted HfS2 phototransistors with ideal thickness ranging from 7 to 12 nm exhibit a high on/off ratio of ca. 10(7) , ultrahigh photoresponsivity over 890 A W(-1) , and photogain over 2300. Moreover, the response time is strongly dependent on the back-gate voltage and shows a reverse trend for Au and Cr metals.
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Keywords:  HfS2; flake thickness; metal contacts; phototransistors; responsivity

Year:  2015        PMID： 26497945     DOI： 10.1002/adma.201503864

Source DB:  PubMed          Journal:  Adv Mater        ISSN： 0935-9648            Impact factor:   30.849


  10 in total

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2.  HfS2/MoTe2 vdW heterostructure: bandstructure and strain engineering based on first-principles calculation.

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4.  Scaling trends and performance evaluation of 2-dimensional polarity-controllable FETs.

Authors:  Giovanni V Resta; Tarun Agarwal; Dennis Lin; Iuliana P Radu; Francky Catthoor; Pierre-Emmanuel Gaillardon; Giovanni De Micheli
Journal:  Sci Rep       Date:  2017-03-30       Impact factor: 4.379

5.  Influence of Mn, Fe, Co, and Cu Doping on the Photoelectric Properties of 1T HfS2 Crystals.

Authors:  Der-Yuh Lin; Yu-Tai Shih; Wei-Chan Tseng; Chia-Feng Lin; Hone-Zern Chen
Journal:  Materials (Basel)       Date:  2021-12-27       Impact factor: 3.623

6.  First principles study on structural, electronic and optical properties of HfS2(1-x)Se2x and ZrS2(1-x)Se2x ternary alloys.

Authors:  Mohammadreza Razeghizadeh; Mahdi Pourfath
Journal:  RSC Adv       Date:  2022-05-11       Impact factor: 4.036

7.  The magnetism of 1T-MX2 (M = Zr, Hf; X = S, Se) monolayers by hole doping.

Authors:  Hui Xiang; Bo Xu; Weiqian Zhao; Yidong Xia; Jiang Yin; Xiaofei Zhang; Zhiguo Liu
Journal:  RSC Adv       Date:  2019-05-02       Impact factor: 4.036

8.  Stress-Tuned Optical Transitions in Layered 1T-MX2 (M=Hf, Zr, Sn; X=S, Se) Crystals.

Authors:  Miłosz Rybak; Tomasz Woźniak; Magdalena Birowska; Filip Dybała; Alfredo Segura; Konrad J Kapcia; Paweł Scharoch; Robert Kudrawiec
Journal:  Nanomaterials (Basel)       Date:  2022-09-30       Impact factor: 5.719

9.  Strain-engineered inverse charge-funnelling in layered semiconductors.

Authors:  Adolfo De Sanctis; Iddo Amit; Steven P Hepplestone; Monica F Craciun; Saverio Russo
Journal:  Nat Commun       Date:  2018-04-25       Impact factor: 14.919

10.  High-pressure Raman scattering in bulk HfS2: comparison of density functional theory methods in layered MS2 compounds (M = Hf, Mo) under compression.

Authors:  J Ibáñez; T Woźniak; F Dybala; R Oliva; S Hernández; R Kudrawiec
Journal:  Sci Rep       Date:  2018-08-24       Impact factor: 4.379
  10 in total

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