Influence of Cu doping on the structural, photoluminescence and formaldehyde sensing properties of SnO2nanoparticles

RSC Advances ◽  
2014 ◽  
Vol 4 (8) ◽  
pp. 3904-3912 ◽  
Author(s):  
R. K. Mishra ◽  
Ajay Kushwaha ◽  
P. P. Sahay
Keyword(s):  
Cu Doping ◽  
Sensing Properties ◽  
Formaldehyde Sensing

A facile one-step hydrothermal synthesis of NiO/ZnO heterojunction microflowers for the enhanced formaldehyde sensing properties

2018 ◽  
Vol 739 ◽  
pp. 260-269 ◽  
Author(s):  
Xiaoguang San ◽  
Ming Li ◽  
Dongyu Liu ◽  
Guosheng Wang ◽  
Yanbai Shen ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Sensing Properties ◽  
One Step ◽  
Formaldehyde Sensing

Ag decorated SnO2 nanoparticles to enhance formaldehyde sensing properties

2019 ◽  
Vol 124 ◽  
pp. 36-43 ◽  
Author(s):  
Dan Liu ◽  
Junli Pan ◽  
Jianghong Tang ◽  
Weiqiao Liu ◽  
Shouli Bai ◽  
...  
Keyword(s):  
Sno2 Nanoparticles ◽  
Sensing Properties ◽  
Formaldehyde Sensing

Porous Nd-doped In2O3 nanotubes with excellent formaldehyde sensing properties

2016 ◽  
Vol 658 ◽  
pp. 319-323 ◽  
Author(s):  
Xuesong Wang ◽  
Jinbao Zhang ◽  
Yue He ◽  
Lianyuan Wang ◽  
Li Liu ◽  
...  
Keyword(s):  
Sensing Properties ◽  
Formaldehyde Sensing

STUDYING STRUCTURAL, OPTICAL, ELECTRICAL, AND SENSING PROPERTIES OF NANOCRYSTALLINE SnO2:Cu FILMS PREPARED BY SOL–GEL METHOD FOR CO GAS SENSOR APPLICATION AT LOW TEMPERATURE

2017 ◽  
Vol 24 (08) ◽  
pp. 1750110 ◽  
Author(s):  
SELMA M. H. AL-JAWAD ◽  
ABDULHUSSAIN K. ELTTAYF ◽  
AMEL S. SABER
Keyword(s):  
Thin Films ◽  
Absorption Coefficient ◽  
Doping Concentration ◽  
Energy Gap ◽  
Sol Gel ◽  
Ultraviolet Emission ◽  
Rutile Structure ◽  
Cu Doping ◽  
Sensing Properties ◽  
Co Gas

Nanocrystalline SnO2 and SnO2:Cu thin films derived from SnCl[Formula: see text]H2O precursors have been prepared on glass substrates using sol–gel dip-coating technique. The deposited film was [Formula: see text][Formula: see text]nm thick and the films were annealed in air at 500[Formula: see text]C for 1[Formula: see text]h. Structural, optical and sensing properties of the films were studied under different preparation conditions, such as Cu-doping concentration of 2%, 4% and 6[Formula: see text]wt.%. X-ray diffraction studies show the polycrystalline nature with tetragonal rutile structure of SnO2 and Cu:SnO2 thin films. The films have highly preferred orientation along (110). The crystallite size of the prepared samples reduced with increasing Cu-doping concentrations and the addition of Cu as dopants changed the structural properties of the thin films. Surface morphology was determined through scanning electron microscopy and atomic force microscopy. Results show that the particle size decreased as doping concentration increased. The films have moderate optical transmission (up to 82.4% at 800[Formula: see text]nm), and the transmittance, absorption coefficient and energy gap at different Cu-doping concentration were measured and calculated. Results show that Cu-doping decreased the transmittance and energy gap whereas it increased the absorption coefficient. Two peaks were noted with Cu-doping concentration of 0–6[Formula: see text]wt.%; the first peak was positioned exactly at 320[Formula: see text]nm ultraviolet emission and the second was positioned at 430–480[Formula: see text]nm. Moreover, emission bands were noticed in the photoluminescence spectra of Cu:SnO2. The electrical properties of SnO2 films include DC electrical conductivity, showing that the films have two activation energies, namely, [Formula: see text] and [Formula: see text], which increase as Cu-doping concentration increases. Cudoped nanocrystalline SnO2 gas-sensing material has better sensitivity to CO gas compared with pure SnO2.

Enhanced formaldehyde sensing properties of hollow SnO 2 nanofibers by graphene oxide

2017 ◽  
Vol 250 ◽  
pp. 533-542 ◽  
Author(s):  
Ding Wang ◽  
Minglu Zhang ◽  
Zhenlu Chen ◽  
Huijun Li ◽  
Aiying Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Sensing Properties ◽  
Formaldehyde Sensing

Effect of Cu Doping on the Gas Sensing Properties of Nano-Crystalline NiO Thin Films

2013 ◽  
Vol 1 (2) ◽  
pp. 143-147
Author(s):  
Y. Ashok Kumar Reddy ◽  
B. Ajitha ◽  
A. Sivasankar Reddy ◽  
P. Sreedhara Reddy
Keyword(s):  
Thin Films ◽  
Gas Sensing ◽  
Cu Doping ◽  
Sensing Properties ◽  
Nano Crystalline ◽  
Gas Sensing Properties

Hierarchically Mesoporous Hematite Microspheres and Their Enhanced Formaldehyde-Sensing Properties

Small ◽  
2011 ◽  
Vol 7 (5) ◽  
pp. 578-582 ◽  
Author(s):  
Dan Mao ◽  
Jianxi Yao ◽  
Xiaoyong Lai ◽  
Mei Yang ◽  
Jiang Du ◽  
...  
Keyword(s):  
Sensing Properties ◽  
Formaldehyde Sensing

scholarly journals The Enhanced Formaldehyde-Sensing Properties of P3HT-ZnO Hybrid Thin Film OTFT Sensor and Further Insight into Its Stability

Sensors ◽  
2015 ◽  
Vol 15 (1) ◽  
pp. 2086-2103 ◽  
Author(s):  
Huiling Tai ◽  
Xian Li ◽  
Yadong Jiang ◽  
Guangzhong Xie ◽  
Xiaosong Du
Keyword(s):  
Thin Film ◽  
Hybrid Thin Film ◽  
Sensing Properties ◽  
Formaldehyde Sensing ◽  
Insight Into

Formaldehyde Sensing Properties of SnO–Graphene Composites Prepared via Hydrothermal Method

2015 ◽  
Vol 31 (9) ◽  
pp. 913-917 ◽  
Author(s):  
Xiangfeng Chu ◽  
Xiaohua Zhu ◽  
Yongping Dong ◽  
Wangbing Zhang ◽  
Linshan Bai
Keyword(s):  
Hydrothermal Method ◽  
Sensing Properties ◽  
Formaldehyde Sensing

Synthesis and Formaldehyde Sensing Properties of Pd-Doped SnO2 Nanoparticles

2010 ◽  
Vol 8 (2) ◽  
pp. 238-242 ◽  
Author(s):  
Ting Chen ◽  
Qiuying Mu ◽  
Zhenlai Zhou ◽  
Yude Wang
Keyword(s):  
Sno2 Nanoparticles ◽  
Sensing Properties ◽  
Formaldehyde Sensing
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