In this work, we have investigated the heat sensitivity of a Zn_1-xCd_xO (x = 0.03–1) films obtained by spray-pyrolysis under the influence of atmospheric air, considering the substrate type, air temperature, and Cd concentration. We found a transition in the electrical conductivity behavior when x is around 0.55 (55 at.% Cd). This transition is related to the structural phase transition that also occurs close to this concentration. It has been proved that the thermal response amplitude is directly related to the surface morphology of films, which depends on the substrate type and the Cd concentration. We found that thermal sensitivity and signal quality are higher for samples grown on top of Si substrates. The conductivity changes are reproducible over a strategic temperature range (50–100 °C), making the films available for practical applications.

在这项工作中，我们研究了在大气影响下通过喷雾热解获得的Zn _{1- x} Cd _x O（x = 0.03-1）薄膜的热敏性，并考虑了基材类型，空气温度和Cd浓度。我们发现当x时电导率行为发生转变是大约0.55（55 at。％Cd）。该转变与也在该浓度附近发生的结构相转变有关。已经证明，热响应幅度与薄膜的表面形态直接相关，这取决于衬底的类型和Cd的浓度。我们发现，在硅衬底上生长的样品的热敏度和信号质量更高。在战略性温度范围（50–100°C）内，电导率变化是可重现的，从而使薄膜可用于实际应用。