Development, application and commercialization of transparent paper

Transparent paper made of cellulose for next generation 'green' electronic devices is a completely new concept that has attracted great attention over the past decade due to a variety of prominent properties of cellulose such as its natural origin, environmental safety and renewability. Various proof-of-concept transparent paper-based electronics have been demonstrated by scientists from all over the world. In this article, we first discuss the natural cellulose-based materials for transparent paper. We then summarize recent advances in the fabrication of transparent paper, including filtration, casting, extrusion and impregnation. The latest developments in transparent and flexible paper electronic devices are also demonstrated, such as photovoltaic devices, transistors, organic light emitting diodes and displays. Finally, we discuss the economically efficient routes for the mass production of transparent paper.