Encapsulation of Photo-electronic Devices and Evaluation of the Importance of Polymers

The photo-electronic devices are widely used in electronic industries. These devices are made from specific organic and inorganic materials with unique properties. Most of these materials are highly sensitive to atmosphere conditions such as moisture and oxygen.We need to protect these devices from harmful atmospheric conditions. Encapsulation layer with suitable barrier properties against oxygen and moisture and proper mechanical properties to protect photo-electronic devicesand to improveits longevity. The photo-electronic devices emit or absorb light. For this reason the encapsulation layer should be transparent in the visible wavelength range to support a photo-electronic device with its satisfactory performance. Therefore, the polymeric materials are the best candidates for this application to afford the required properties. In this article, to find a suitable polymer for use as an encapsulation layer, the properties of different kinds of polymers are investigated.