An intermediate transfer chamber that can prevent formation of defects in substrates. The resultant composite material is substantially impervious to air and water and permeable to water vapor and having a water vapor transmission rate exceeding one perm of water vapor. The method applies a first positive drain-to-source bias, a second positive source-to-substrate bias, and a third positive gate-to-source bias to read the source-side charges trapped in the trapping material near the source side. The client email application may also send new email notifications to the email proxy server upon detection of new emails to cause the email proxy server to push the new emails to the mobile wireless communications device. The repository tier is comprised of repository servers and provides adaptive services to make the data maintained within the data sources available to services in the services tier and the client tools in the user interface tier. In particular compounds having the general formula are described, where the radicals have the meanings described in detail in the application.