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A multilayered semiconductor acting as an optical sensor opens the way to miniaturized, adjunct spectrometers.

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Abstract: Air pollution is one of the major concerns as it is the contamination of atmosphere air (indoor and outdoor) by harmful and toxic gases, chemicals, physical, or biological agents that alter ...

Abstract: Accurate and real-time sensing of gas molecule species and concentrations is critical for a myriad of applications, including environmental protection, industry automation, public health ...