Light-optimized photovoltaic self-powered NO2 gas sensing based on black silicon

Yang Zhao, Xiao Long Liu, Sheng Xiang Ma, Wen Jing Wang, Xi Jing Ning, Li Zhao*, Jun Zhuang

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

Abstrakti

The NO2 sensing performance of a special lateral photovoltaic self-powered gas sensor based on the N-hyperdoped microstructured silicon (N-Si) is systematically studied under the different light illumination. The dependence of sensing characteristics on light intensity and wavelength is obtained, respectively. Results show that the sensing properties can be changed effectively by the different intensities and wavelengths, suggesting that a multidimensional regulation/optimization for the sensing characteristics is possible by light. More interestingly, the light with wavelength of 940 nm and intensity of ∼18 μW/cm2 could bring a comprehensive optimization for gas sensing, under which the N-Si sensor exhibits the excellent overall performance with simultaneously the low light power needed, good gas response, high sensitivity, wide detectable range and short response time at room temperature.

AlkuperäiskieliEnglanti
Artikkeli129985
Sivumäärä10
JulkaisuSensors and Actuators, B: Chemical
Vuosikerta340
DOI - pysyväislinkit
TilaJulkaistu - 1 elokuuta 2021
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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