A surfactant dispersed N-doped carbon sphere-poly(vinyl alcohol) composite as relative humidity sensor

被引：18

作者：

Cunha, Bruno B. ^{[1
]}

Greenshields, Marcia W. C. C. ^{[1
]}

Mamo, Messai A. ^{[2
]}

Coville, Neil J. ^{[3
]}

Huemmelgen, Ivo A. ^{[1
]}

机构：

[1] Univ Fed Parana, Dept Fis, BR-81531990 Curitiba, Parana, Brazil

[2] Univ Johannesburg, Dept Appl Chem, ZA-2028 Doornfontein, South Africa

[3] Univ Witwatersrand, Inst Mol Sci, Sch Chem, DST NRF Ctr Excellence Strong Mat, ZA-2050 Johannesburg, South Africa

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2015年 / 26卷 / 06期

关键词：

Surfactant; Relative Humidity; Vinyl Alcohol; Humidity Sensor; Carbon Sphere;

D O I：

10.1007/s10854-015-2966-7

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：

We report on the use of a composite of N-doped carbon spheres dispersed with hexadecyltrimethylammonium bromide in poly(vinyl alcohol) as an active material for thin film relative humidity (RH) sensors prepared on interdigitated electrodes (IDEs) with gaps of 0.1 or 0.3 mm. The sensors respond to RH variations in the range 9-97 RH % presenting sensitivity (relative variation of conductance per RH variation) up to 1.7 x 10(3) (IDE with gap of 0.1 mm) and 8.7 x 10(2) (IDE with gap of 0.3 mm). The response times were 19 and 8 s, and the recovery times were 178 and 142 s, respectively.

引用

页码：4198 / 4201

页数：4

共 20 条

[1] Effect of crystallization on humidity sensing properties of sol-gel derived nanocrystalline TiO2 thin films
Biju, Kuyyadi P.
Jain, Mahaveer K.
[J]. THIN SOLID FILMS, 2008, 516 (08) : 2175 - 2180
[2] Diagnostics for elliptical linear mixed models with first-order autoregressive errors
Cao, Chun-Zheng
Lin, Jin-Guan
[J]. JOURNAL OF STATISTICAL COMPUTATION AND SIMULATION, 2011, 81 (10) : 1281 - 1296
[3] Humidity sensors: A review of materials and mechanisms
Chen, Z
Lu, C
[J]. SENSOR LETTERS, 2005, 3 (04) : 274 - 295
[4] Utilizing the Krafft Phenomenon to Generate Ideal Micelle-Free Surfactant-Stabilized Nanoparticle Suspensions
Doelle, Sarah
Lechner, Bob-Dan
Park, Ji Hyun
Schymura, Stefan
Lagerwall, Jan P. F.
Scalia, Giusy
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (13) : 3254 - 3257
[5] Greenspan L.J., 1977, RES NBS SEC, V81, P89
[6] Carbon Nanotube Based Humidity Sensor on Cellulose Paper
Han, Jin-Woo
Kim, Beomseok
Li, Jing
Meyyappan, M.
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (41) : 22094 - 22097
[7] Standardisation of temperature observed by automatic weather stations
Joyce, A
Adamson, J
Huntley, B
Parr, T
Baxter, R
[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT, 2001, 68 (02) : 127 - 136
[8] Humidity sensors: A review
Lee, CY
Lee, GB
[J]. SENSOR LETTERS, 2005, 3 (01) : 1 - 15
[9] Humidity sensitive field effect transistors
Lee, SP
Park, KJ
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 1996, 35 (1-3) : 80 - 84
[10] A comparative study on hydrostatic pressure response of sensors based on N-doped, B-doped and undoped carbon-sphere poly (vinyl alcohol) composites
Mamo, Messai A.
Machado, Wagner S.
Coville, Neil J.
Huemmelgen, Ivo A.
[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2012, 23 (07) : 1332 - 1337

← 1 2 →