Scientist layout novel HTMs for perovskite quantum dot solar cells
- Scientist fromKorea's Pohang University of Science and Technology (POSTECH), Ajou University, Daegu Gyeongbuk Institute of Science and Technology (DGIST) and Kookmin University have actually made new polymeric hole transport products that constitute a crucial component in perovskite quantum dot solar cells, leading to considerable increase in their effectiveness.
The team's hole transport products consist of polymers based on sulfur and selenium compounds. These polymers show architectural functions, such as planarization and securing of intermolecular arrangements, which raise charge mobility. Furthermore, asymmetric alkyl substituents of the polymers promote molecular interactions, therefore complementing the electric buildings of cells.
The freshly developed polymers were evaluated with tests utilizing a control group. The results suggest that solar cells that use hole transport materials including selenium substances attained 15.2% of power conversion effectiveness (PCE), keeping 80% of their preliminary PCE even after 40 days. The findings of this research demonstrate that the newly designed hole transport materials can efficiently increase charge mobility without making use of dopants, resulting in the highest possible PCE and boosted security in dopant-free perovskite quantum dot solar cells.
Professor Taiho Park, that led the study, clarified: "The study findings stand for a paradigm shift from standard charge transport materials and are anticipated to be used in future research study on solar cell gadgets."
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