Recent progress in inkjet-printed solar cells
In the past few decades, the fabrication of solar cells has been considered as one of the most promising ways to meet the increasing energy demands for the development of modern society as well as to control the environmental pollution which caused by fossil fuel combustion. The different types of solar cells such as silicon solar cells (Si), Cu-based chalcogenides (Cu(In,Ga)Se2/Cu2ZnSn(S,Se)4) thin film solar cells (TFSC), dye-sensitized solar cells (DSSC), organic solar cells (OSC) and perovskite solar cells (PVSC) have been implemented in the photovoltaic technology. However, a high manufacturing cost of solar cell is one of the major obstacles for its wide application. In this regard, inkjet printing has been attracted tremendous interest in both academic research and industrial applications among all kinds of fabrication techniques. It is believed to be one of the most promising methods to meet these requirements. The great advantages of inkjet printing are contactless, maskless, high material utilization rate, scalability and compatibility of roll-to-roll process. Additionally, the maskless nature of inkjet printing has been allowed for freedom of-design which enables the multi-functional properties of solar cells (i.e. power source and art work). In this review, the recent advancements of inkjet printing with deposition of different layers of various types of solar cells have been summarized in detail and prospected the developments of printed/flexible solar cells for future.