Unlock the forefront of solar energy conversion with this comprehensive review. Delve into the intricate dynamics of interfacial electron and excitation transfer, crucial processes for developing next-generation solar technologies. This volume presents a state-of-the-art analysis of both experimental and theoretical approaches. Essential for researchers, scientists, and postgraduate students across India focused on renewable energy innovation and advanced materials science. Grasp the fundamental molecular mechanisms driving efficient energy capture and transfer, vital for advancing sustainable power solutions.