biostudies-literatureMao HNational Natural Science Foundation of ChinaYunnan Precious Metals LaboratoryYunnan Provincial Science and Technology DepartmentYunnan Province7607-7614https://www.ebi.ac.uk/biostudies/studies/S-EPMC9979360biostudies-literatureUnknown8(8)To date, silver nanowires (AgNWs) are routinely synthesized. However, the controllable preparation of AgNWs without any halide salts has not reached a similar level. In particular, the halide-salt-free polyol synthesis of AgNWs commonly occurs above 413 K, and the property of AgNWs obtained is not so easy to control. In this study, a facile synthesis of AgNWs with a yield of up to ∼90% in an average length of 75 μm was successfully performed without any halide salts. The fabricated AgNW transparent conductive films (TCFs) show a transmittance of 81.7% (92.3% for the AgNW network only without substrate) at a sheet resistance of 12.25 Ω/square. In addition, the AgNW films show distinguished mechanical properties. More importantly, the reaction mechanism for AgNWs was briefly discussed, and the importance of reaction temperature, the mass ratio of poly(vinylpyrrolidone) (PVP)/AgNO₃, and the atmosphere was emphasized. This knowledge will help enhance the reproducibility and scalability of polyol synthesis of high-quality AgNWs.ACS omegaHalide-Salt-Free Synthesis of Silver Nanowires with High Yield and Purity for Transparent Conductive Films.PMC9979360201902000121761016YPML-20220502012017HB060202102AB080008-5202002AB080001-1Yang HChen JFan ZRen YDai WMao HHe LYin JfalseHalide-Salt-Free Synthesis of Silver Nanowires with High Yield and Purity for Transparent Conductive Films.To date, silver nanowires (AgNWs) are routinely synthesized. However, the controllable preparation of AgNWs without any halide salts has not reached a similar level. In particular, the halide-salt-free polyol synthesis of AgNWs commonly occurs above 413 K, and the property of AgNWs obtained is not so easy to control. In this study, a facile synthesis of AgNWs with a yield of up to ∼90% in an average length of 75 μm was successfully performed without any halide salts. The fabricated AgNW transparent conductive films (TCFs) show a transmittance of 81.7% (92.3% for the AgNW network only without substrate) at a sheet resistance of 12.25 Ω/square. In addition, the AgNW films show distinguished mechanical properties. More importantly, the reaction mechanism for AgNWs was briefly discussed, and the importance of reaction temperature, the mass ratio of poly(vinylpyrrolidone) (PVP)/AgNO₃, and the atmosphere was emphasized. This knowledge will help enhance the reproducibility and scalability of polyol synthesis of high-quality AgNWs.2023-01-01T00:00:00Z2023 Feb2026-03-18T13:46:37.385Z2025-02-18T23:35:40.958ZS-EPMC99793603687303410.1021/acsomega.2c07164