Weihua Tang is a prominent researcher in advanced functional materials and device engineering, specializing in organic and perovskite solar cells, energy storage systems, and nanostructured composites. His research has received 16,175 citations (8,023 since 2021), with an h-index of 68 (49 since 2021) and 225 i10-index publications (147 since 2021), reflecting his strong global influence. Tang’s work on ternary organic solar cells, non-fullerene acceptors, and perovskite tandem architectures has significantly advanced device efficiency, interface control, and long-term stability. He has also contributed to dopant-free hole-transport materials and narrow-bandgap conjugated polymers, supporting scalable next-generation photovoltaics. Beyond solar cells, his research includes graphene- and bacterial-cellulose-based nanocomposites for high-performance supercapacitors and surface-engineered quantum dots for sensing and biomedical applications. A consistent theme across his work is the optimization of morphology, interfacial chemistry, and charge transport to enhance structure–property–performance relationships. His publications in leading journals such as Nature and Energy & Environmental Science continue to influence sustainable energy research worldwide.