scholarly journals Mid-infrared response of reduced graphene oxide and its high-temperature coefficient of resistance

AIP Advances ◽  
2014 ◽  
Vol 4 (10) ◽  
pp. 107131 ◽  
Author(s):  
Haifeng Liang
Keyword(s):  
Graphene Oxide ◽  
High Temperature ◽  
Temperature Coefficient ◽  
Reduced Graphene Oxide ◽  
Temperature Coefficient Of Resistance ◽  
Mid Infrared ◽  
Reduced Graphene

scholarly journals Chemical and Temperature Sensors Based on Functionalized Reduced Graphene Oxide

Chemosensors ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 43
Author(s):  
Esteban Araya-Hermosilla ◽  
Matteo Minichino ◽  
Virgilio Mattoli ◽  
Andrea Pucci
Keyword(s):  
Graphene Oxide ◽  
Temperature Coefficient ◽  
Reduced Graphene Oxide ◽  
Electrical Transport ◽  
Structural Characteristics ◽  
Solid Dispersions ◽  
Negative Temperature ◽  
Resistance Variation ◽  
Reduced Graphene ◽  
Electrical Resistance Variation

In this work, we investigated the functionalization of reduced graphene oxide (rGO) with 2-(dodecen-1-yl) succinic anhydride (TPSA) to increase the rGO effective interactions with organic solvents both in liquid and vapor phases. Thermogravimetric analysis, STEM, XPS, FTIR-ATR, and Raman spectroscopy confirmed the effective functionalization of rGO with about the 30 wt% of grafted TPSA without affecting the structural characteristics of graphene but successfully enhancing its dispersibility in the selected solvent except for the apolar hexane. Solid TPSA-rGO dispersions displayed a reproducible semiconducting (activated) electrical transport with decreased resistance when heated from 20 °C to 60 °C and with a negative temperature coefficient of 10−3 K−1, i.e., comparable in absolute value with temperature coefficient in metals. It is worth noting that the same solid dispersions showed electrical resistance variation upon exposure to vapors with a detection limit in the order of 10 ppm and sensitivity α of about 10−4 ppm−1.

scholarly journals In Situ, Fast, High-Temperature Synthesis of Nickel Nanoparticles in Reduced Graphene Oxide Matrix

2017 ◽  
Vol 7 (11) ◽  
pp. 1601783 ◽  
Author(s):  
Yiju Li ◽  
Yanan Chen ◽  
Anmin Nie ◽  
Aijiang Lu ◽  
Rohit Jiji Jacob ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Temperature ◽  
Reduced Graphene Oxide ◽  
Nickel Nanoparticles ◽  
Temperature Synthesis ◽  
High Temperature Synthesis ◽  
Reduced Graphene ◽  
Oxide Matrix

Reduced graphene oxide mid-infrared photodetector at 300 K

2015 ◽  
Vol 107 (11) ◽  
pp. 111111 ◽  
Author(s):  
Gustavo E. Fernandes ◽  
Jin Ho Kim ◽  
Declan Oller ◽  
Jimmy Xu
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Infrared Photodetector ◽  
Mid Infrared ◽  
Reduced Graphene
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