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The performance of zinc oxide (ZnO)-based piezoelectric nanogenerators (PENGs) has been largely limited by piezoelectric potential screening effect due to excess electrons in ZnO. To address this problem, we report here a method that can greatly enhance the performance of ZnO PENGs by reducing excess electrons. We formed ZnO p–n homojunction thin film, composed of unintentionally doped n-ZnO and phosphorus-doped...
We report on the successful face-to-face transfer of crystalline ITO (c-ITO) films from Si wafers to flexible colorless polyimide (CPI) substrates for application in high-performance flexible organic solar cells (OSCs). By using an Ag sacrificial layer and by coating of a CPI solution onto high-temperature processed c-ITO films, the film can be directly transferred from a Si wafer to a flexible CPI...
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