Poly(3,4-ethylenedioxythiophene): Poly(styrenesulfonate) coated three layer graphene-graphene oxide heterostructure for UV and IR detection

被引：0
作者：
Mydhili, V [1 ]
Kavinkumar, T. [1 ]
Manivannan, S. [1 ]
机构：
[1] Natl Inst Technol, Dept Phys, Carbon Nanomat Lab, Tiruchirappalli 620015, Tamil Nadu, India
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2021年 / 264卷
关键词：
UV and IR sensing; Laser assisted reduction; PEDOT:PSS; Graphene oxide; Three-layer graphene;
D O I：
10.1016/j.mseb.2020.114932
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present work emphasizes on the use of laser assisted reduction for the fabrication of freestanding three-layer graphene (3LG)-graphene oxide heterostructure (LRG). PEDOT:PSS due to its high spectral responsivity and electron blocking nature was deposited over LRG for better photon absorption, exciton generation and prevention of electron-hole recombination. Powder XRD and micro-Raman studies revealed the successful formation of LRG and PEDOT:PSS/LRG heterostructure. A superior photoresponse characteristics with an ultra-high gain exceeding 100%, responsivity and detectivity in the order of 10(2) AW(-1) and 10(10) Jones, respectively was observed under ultraviolet (365 nm) illumination for PEDOT:PSS/LRG. The superior performance was owed to the inhibition of charge carrier recombination by mid-gap state band in LRG. The fabricated films have a promising future in opto-electronic industry, sensing and environmental monitoring purposes.
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页数：5
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