Solar cells based on thin-film and nanostructure materials are fast developing photovoltaic (PV) area due to the advantage of material dimension/usage reduction as well as the potential of exceeding the efficiency limit of conventional solar cells. Thin-film materials (Si, III-Vs, chalcogenides, and perovskites etc) and nanostructure materials (nanoparticles, quantum wells, quantum dots, nanowires, and carbon nanotubes etc) can be synthesized by a variety of deposition, epitaxy, nanofabrication and solution based techniques. Their structural, optical and electrical properties can be investigated by a wide range of characterization techniques for PV related applications, either as the active absorbing materials or other important device components such as contact layer, passivation layer, back reflector or light trapping structure. Many new concepts and theories are also proposed making use of different thin-film and nanostructures to enhance light absorption and charge separation in solar cell devices. Underpinned by the ultimate demand of low-cost and high-efficiency from the PV industry, this symposium aims at providing a dynamic forum on the recent development in both existing and emerging fields of thin-film and nanostructure solar cell materials and devices. Submissions are invited to cover from fundamental to applied research, the material synthesis and characterization, device design, fabrication and characterization, theory, simulation and new concepts, to advance the state-of-the-art PV technology in the field of thin-film and nanostructure solar cells.