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研究SnO_2:ZnO薄膜在丙酮,乙醇、氨蒸汽中的气毓反射光谱,发现反射光强随气体浓度增加而减弱。这三种蒸汽具有不同的灵敏度,并解释了它的机理。
The gas reflection spectra of SnO_2: ZnO films in acetone, ethanol and ammonia vapor were studied. It was found that the reflected light intensity decreased with the increase of gas concentration. These three types of steam have different sensitivities and explain its mechanism.