Low Band-Gap Materials for Solar Cells
Yadavalli Venkata Durga Nageswar, Vaidya Jayathirtha Rao
Organic solar cells (OSCs) are discussed at length in terms of its performance leading to the generation of electricity. The key materials required for OSCs are the small organic molecules having donor and acceptor with suitable light absorption and electro-chemical properties of low energy band gap. Various structural scaffolds are highlighted with their structural design leading to film forming in an orderly manner and this morphology of film having a pivotal role in photo-induced charge separation, migration and collection at an electrode. Present day research informs that OSCs involving non fullerene based donors and acceptors are functioning with high photo conversion efficiency [PCE] of >17% and are promising candidates for practical applications.
Keywords
Organic Solar Cells, Low Band Gap, Energy Materials, Fullerene Acceptors, Photo Conversion Efficiency, Photovoltaic Parameters, Energy Transfer Process, Perovskite Solar Cells
Published online 11/15/2020, 60 pages
Citation: Yadavalli Venkata Durga Nageswar, Vaidya Jayathirtha Rao, Low Band-Gap Materials for Solar Cells, Materials Research Foundations, Vol. 88, pp 176-235, 2021
DOI: https://doi.org/10.21741/9781644901090-7
Part of the book on Materials for Solar Cell Technologies I
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