There is a clear need to make energy cheap, readily accessible and green, while ensuring its production does not contribute to further climate change. Of all the options available, photovoltaics offer the highest probability of delivering a meaningful and sustainable change in the way society produces its energy. One approach to the development of such photovoltaics involves the use of polymers...

While the basic principles of conventional solar cells are well understood, little attention has gone towards maximizing the efficiency of photovoltaic devices based on shift currents. By analysing effective models, here we outline simple design principles for the optimization of shift currents for frequencies near the band gap. Our method allows us to express the band edge shift current in ter...

This review focuses on the intrinsic charge transport in organic photovoltaic (PVC) devices and field-effect transistors (SAM-OFETs) fabricated by vapor phase molecular self-assembly (VP-SAM) method. The dynamics of charge transport are determined and used to clarify a transport mechanism. The 1,4,5,8-naphthalene-tetracarboxylic diphenylimide (NTCDI) SAM devices provide a useful tool to study t...

Crystalline Si wires, grown by the vapor–liquid–solid (VLS) process, have emerged as promising candidate materials for lowcost, thin-film photovoltaics. Here, we demonstrate VLS-grown Si microwires that have suitable electrical properties for high-performance photovoltaic applications, including long minority-carrier diffusion lengths (Ln [ 30 mm) and low surface recombination velocities (S 70 ...

The world is transitioning towards a net zero emissions future and solar energy at the forefront of transition. land use requirements to install farms present barrier for industry as population density increases prices rise. Floating photovoltaics (FPV) addresses this issue by installing (PV) on bodies water. Globally, installed FPV increasing becoming viable option many countries. A 1% coverag...

Photovoltaic conversion has made impressive progress since its discovery, but as will be discussed here, much can still done. It is of interest to investigate what are the intrinsic limits technology. We call here ultimate performance those that could limited only by properties devices. This point along three lines: for energy conversion, material usage and device stability.