The effect of UV irradiation on electrical properties of spray- coated ZnO thin films

Ultraviolet (UV) radiation exposure monitoring is an important public health topic because, at moderate rates, it facilitates the synthesis of vitamin D, prevent rickets and also kill germs. However, at elevate rates, UV radiation becomes dangerous and oftentimes it is associated to the development of diseases such as skin cancer [1]. Then, there is a demand for simple and low-cost UV-sensing materials. In this sense, printed electronics offers the possibility to obtain this materials in a cheap way, compatible to the production in large scale to be used in packaging or even in adornments.