AUTHOR=Koyuncu Sermet , Tohtayeva Jahan TITLE=Solar light driven photochromic membranes with viologen additives in PVDF/PVP matrix JOURNAL=Frontiers in Materials VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2024.1490273 DOI=10.3389/fmats.2024.1490273 ISSN=2296-8016