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Micro light plates for low-power photoactivated (gas) sensors
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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 μW (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.
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MARKIEWICZ, Nicolai, et al. Micro light plates for low-power photoactivated (gas) sensors. Applied Physics Letters. 2019. Vol. 114, num. 5, pags. 053508. ISSN 0003-6951. [consulted: 4 of August of 2026]. Available at: https://hdl.handle.net/2445/128185