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Access through your institution Buy or subscribe Polymers can be found in everything from clothes to food packaging, and even in energy-generating devices like photovoltaics (PVs). Decades

worth of studies on conducting and semiconducting polymers have shown that just slight alterations or defects in a polymer chain can have drastic effects on its conductance. Semiconducting

polymers can be made through a range of catalysed reactions (such as the Stille polymerization reaction), but they generally require precise reaction conditions to produce a product with a

narrow spread of molecular weights. More often, a broad distribution of molecular weights are produced, which will impact their charge transfer properties. Polymers with higher weights and

narrow spreads are better at conducting charges. This is a preview of subscription content, access via your institution ACCESS OPTIONS Access through your institution Access Nature and 54

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ARTICLE * Kim, S. et al. High-precision tailored polymer molecular weights for specific photovoltaic applications through ultrasound-induced simultaneous physical and chemical events.

_Angew. Chem. Int. Ed_ https://doi.org/10.1002/anie.202401097 (2024) Article  Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Nature Reviews Chemistry

http://www.nature.com/natrevchem/ Alexander Rosu-Finsen Authors * Alexander Rosu-Finsen View author publications You can also search for this author inPubMed Google Scholar CORRESPONDING

AUTHOR Correspondence to Alexander Rosu-Finsen. RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Rosu-Finsen, A. Pump up the ultrasound. _Nat Rev Chem_ 8,

156 (2024). https://doi.org/10.1038/s41570-024-00590-6 Download citation * Published: 28 February 2024 * Issue Date: March 2024 * DOI: https://doi.org/10.1038/s41570-024-00590-6 SHARE THIS

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