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reduced graphene oxide/Si Schottky diode

  • Experimentally confirmed?

    Yes

Composition

1

n-doped silicon

n-Si
Type complex compound
Formula
Role semiconductors
2

silicon dioxide

silicic oxide silica
Type single compound
Formula SiO2
Role dielectric layer
3

reduced graphene oxide

RGO
Type nanomaterial
Formula
Role conducting layer

Summary

from 1 article

Properties

General physical and chemical properties

Property or diagram Availability Measurement parameter Determined by Source

current change

value given

analyte gas

bias voltage

experiment

electric current

value given

analyte gas

light conditions

experiment

electric current

value given

analyte gas

bias voltage

flow rate

analyte concentration

working time

experiment

Schottky barrier height

value given

analyte gas

experiment

Sensor properties

Type of sensor Environment Sensor property Source

compounds sensor for NO

gas

Detection range = 1 - 10 ppt

Limit of detection = 1 ppt

compounds sensor for NO2

gas

Detection range = 500 - 10000 ppm

Limit of detection = 500 ppm

compounds sensor for SO2

gas

Detection range = 1 - 10 ppt

Limit of detection = 1 ppt

Characterization

Spectroscopic analysis

Method Dependent on Values given Spectrum given Calculated Source
Raman spectroscopy

Yes

Yes

No

X-ray photoelectron spectroscopy

No

Yes

No

Toxicity and other biological effects

Preparation

Synthesis

Type: Chemical synthesis
Source:
Starting materials
annealing; reducing GO to RGO
1
  1. Ar/H2 flow
  2. 400 °C
removal of SiO2
2
  1. HF vapor
Product

reduced graphene oxide/Si Schottky diode

Applications

Application Area Specific application Experimentally confirmed Source

photo-induced selective gas detection

sensors (excluding biosensors)

Schottky diode gas detector

yes

Patent claims

Patent Claim numbers Claims Synthesis information

References

Journal articles

Zhu, Miao; Li, Xinming; Chung, Sunki; Zhao, Liyun; Li, Xiao; Zang, Xiaobei; Wang, Kunlin; Wei, Jinquan; Zhong, Minlin; Zhou, Kun; Xie, Dan; Zhu, Hongwei (2015)
Photo-induced selective gas detection based on reduced graphene oxide/Si Schottky diode

Carbon, vol. 84, pp 138 - 145


Patents

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