Synthesis of VO2 thin films from vanadium powder and determination of room-temperature NH3 sensing properties

被引：7

作者：

Hien, Vu Xuan ^{[1
]}

Thang, Tran Manh ^{[1
]}

Dong, Vu Thanh ^{[1
]}

Nhat, Dang Duc ^{[1
]}

Nghi, Nguyen Thanh ^{[1
]}

Phuoc, Luong Huu ^{[1
]}

Khoa, Cao Tien ^{[2
]}

Vuong, Dang Duc ^{[1
]}

Chien, Nguyen Duc ^{[1
]}

机构：

[1] Hanoi Univ Sci & Technol, Sch Engn Phys, 01 Dai Co Viet St, Hanoi, Vietnam

[2] Thai Nguyen Univ Educ, Dept Phys, 20 Luong Ngoc Quyen St, Thainguyen, Vietnam

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2021年 / 32卷 / 10期

关键词：

Vanadium dioxide;

D O I：

10.1007/s10854-021-05956-w

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

VO2 nanomaterials were synthesized directly from vanadium powder and NH4OH solution. The effect of annealing temperature on the formation of VO2 and V2O5 phases of materials after synthesis was investigated and analyzed. The material is composed of nanoparticles with an average size of about 2 nm. The gas sensing properties of VO2 samples at room temperature were studied. The VO2 nanomaterial was selective toward NH3 at 25 degrees C among other test gases such as C2H5OH, CH3COCH3, and C3H8. The effects of moisture, stability, and gas-sensing mechanism of VO2 nanomaterials were also investigated and discussed. VO2 nanomaterials have simple fabrication and superior air sensitivity and thus have great potential as NH3 sensors at room temperature.

引用

页码：13803 / 13812

页数：10

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