Micro light plates for low-power photoactivated (gas) sensors

被引：45

作者：

Markiewicz, Nicolai ^{[1
,2
]}

Casals, Olga ^{[1
]}

Fabrega, Cristian ^{[1
]}

Gracia, Isabel ^{[3
]}

Cane, Carles ^{[3
]}

Wasisto, Hutomo Suryo ^{[2
,4
]}

Waag, Andreas ^{[2
,4
]}

Daniel Prades, Joan ^{[1
]}

机构：

[1] Univ Barcelona, Dept Elect & Biomed Engn, MIND IN2UB, E-08028 Barcelona, Spain

[2] Tech Univ Carolo Wilhelmina Braunschweig, IHT LENA, D-38106 Braunschweig, Germany

[3] IMB CNM CSIC, Inst Microelect Barcelona, Campus UAB, E-08193 Bellaterra, Spain

[4] Tech Univ Carolo Wilhelmina Braunschweig, Epitaxy Competence Ctr Ec2, D-38106 Braunschweig, Germany

来源：

APPLIED PHYSICS LETTERS | 2019年 / 114卷 / 05期

基金：

欧洲研究理事会;

关键词：

OXIDE; NANOWIRES; NO2; PERFORMANCE; CONSUMPTION; RESPONSES; HUMIDITY;

D O I：

10.1063/1.5078497

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a miniaturized device integrating a photoactive material with a highly efficient Light Emitting Diode light source. This so-called micro light plate configuration allows for maximizing the irradiance impinging on the photoactive material, with a minimum power consumption, excellent uniformity, and accurate control of the illumination. We demonstrate these advantages with an example application: photoactivated gas sensors with a power consumption as low as 30 mu W (this is 1000 times lower than the best figures reported to date). The letter also presents a quantitative model and a set of design rules to implement it in further integrated applications. Published under license by AIP Publishing.

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