Common in-situ cross-linking technique enhances stability of inverted perovskite photo voltaic cells

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Chemical constructions, electrostatic potentials and molecular dipoles of CbzNaph, JJ24 and the proposed cross-linked goal product. The proposed cross-linking mechanism between CbzNaph and JJ24. Credit score: Nature (2025). DOI: 10.1038/s41586-025-09509-7

Gap-selective self-assembled monolayers (SAMs) are ultrathin natural movies that play a vital position in fashionable optoelectronic units, notably in perovskite and silicon-perovskite tandem photo voltaic cells. Nevertheless, their inherent instability usually compromises operational efficiency of the gadget.

In a examine printed in Nature, a crew led by Prof. Yang Chunlei and Assoc. Prof. Zhang Jie from the Shenzhen Institute of Superior Know-how of the Chinese language Academy of Sciences, and Prof. Alex Ok.-Y. Jen from Metropolis College of Hong Kong, developed a common in-situ cross-linking conformational reinforcement technique for SAM molecules, successfully addressing operational stability points attributable to buried interface degradation in high-efficiency inverted perovskite photo voltaic cells.

The researchers designed a novel azide-functionalized SAM molecule, JJ24, that includes an optimized carbon chain size. This molecule can improve the distribution uniformity of the host SAM molecule CbzNaph on clear conductive oxide (TCO) substrate, and may successfully suppress the formation of defects and voids in the course of the self-assembly course of.

The azide group in JJ24 may be…

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Author : tech365

Publish date : 2025-11-15 06:25:00

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