ABSTRACT
The use of solar energy is thought to be the one of best ways to resolve world energy problems such as global warming, energy shortage, environmental pollution. Low-cost energy generation has always been a hot topic for the scientific community over the past few decades. So, excessive efforts have been dedicated to the development of cutting-edge solar cell technologies that can efficiently produce low-cost electricity. This chapter emphasizes the conversion of biowaste-derived carbon materials that are efficiently used in solar energy conversion, such as graphene-based quantum dots (GQDs), by efficient, cost-effective, facile, and scalable methods. The materials exhibit encouraging applications in the field of fuel cells, drug delivery, catalysis, carbon fixation, bioimaging, and gas sensors. Fascinatingly, the current and innovative trends of GQDs in energy conversion, especially solar cells, and their synthesis methods are comprehensively discussed here.
