Yoon, Seongwon Taehyun Kwon Kim, Sohyun Park, So Hyun Lim, Youngjoon Kim, Jihun Kim, Jun An, Kwangjin Park, Sungmin Kim, Jin Young Son, Hae Jung 2024-01-19T10:31:11Z 2024-01-19T10:31:11Z 2023-01-19 2023-01 2050-7526 https://pubs.kist.re.kr/handle/201004/114154 Here we investigated the effects of CeO2-x nanostructures as free radical scavengers on the long-term photostability of an organic photovoltaic (OPV) structure. From powder X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and N-2 adsorption experiments, it was determined that the single-crystalline hollow CeO2-x nanorods were very effective as hydroxyl radical scavengers. This was attributed to their having more Ce3+ states and a wider surface area than other types of CeO2 nanostructures. Time-dependent UV-visible absorption spectra analyses also revealed that the improved scavenging of hydroxyl radicals in the OPV device was related to the better interfacial compatibility between the organic active and ZnO layers, resulting in improved OPV photostability. English Royal Society of Chemistry Crystallinity-modulated hollow CeO2-x nanorods as free radical scavengers for long-term photostability in organic photovoltaics Article 10.1039/d2tc04152a 1 Journal of Materials Chemistry C, v.3, pp.979 - 979 Journal of Materials Chemistry C 3 979 979 N scie scopus 000906490800001 2-s2.0-85145935043 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article; Early Access CERIUM DIOXIDE ZNO NANOPARTICLES NANOCRYSTALS MITIGATION STABILITY FULLERENE BEHAVIOR