Bandgap Narrowing: From Molecular Design to Versatile Applications in Organic Solar Cells
Source abstract
Abstract
Benefiting from Y-series small molecule acceptors (SMAs) with precisely engineered small bandgap ( E g ) values, organic solar cells (OSCs) have achieved an efficiency of over 21%. Despite such great progress, designing materials with even narrower E g still remains challenging but essential for practical applications of OSCs. In this Perspective, we summarize typical molecular tailoring strategies for narrowing the E g of SMAs and polymer donors (PDs). Then, the required E g values for specific applications in tandem solar cells (TSCs) and semitransparent OSCs (ST-OSCs) are clarified, with predicted efficiency limits provided synchronously. Finally, we outline several development trends of narrow-bandgap SMAs and PDs, looking forward to advancing the commercialization of TSCs and ST-OSCs by solving key problems.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Organic Electronics and Photovoltaics · Synthesis and properties of polymers · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Silicon and Advanced Semiconductor Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering
Zhejiang University
Zhejiang Provincial Key Laboratory of Optoelectronic Functional Materials and Devices
Zhejiang University-Hangzhou Global Scientific and Technological Innovation Center
Funding
National Key Research and Development Program of China · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Central Guidance Funds for Local Science and Technology Development Projects
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