Parvez, Md. Khaled Yoo, Gi Moon Kim, Ju Ho Ko, Min Jae Kim, Sung Ryong 2024-01-20T19:00:59Z 2024-01-20T19:00:59Z 2021-09-04 2010-07-29 0009-2614 https://pubs.kist.re.kr/handle/201004/131239 Oxygen plasma and ion-beam treatments of nano-structured TiO2 were carried out to enhance the efficiency of dye-sensitized solar cells (DSSCs). Relative changes in surface states and recombination reactions were examined. Comparative studies showed that the oxygen ion-beam treatment was more effective in reducing the number of oxygen vacancies in TiO2 and the recombination reactions between TiO2 conduction band electrons and I-3 ions in the electrolyte than the plasma treatment. Oxygen ion-beam treated TiO2 film in the DSSC showed a 23 mV increase in the open-circuit voltage (V-oc) and an improvement in the photo-conversion efficiency from 5.05% to 6.64%. (C) 2010 Elsevier B.V. All rights reserved. English ELSEVIER SURFACE MODIFICATION LOW-COST FILM Comparative study of plasma and ion-beam treatment to reduce the oxygen vacancies in TiO2 and recombination reactions in dye-sensitized solar cells Article 10.1016/j.cplett.2010.06.038 1 CHEMICAL PHYSICS LETTERS, v.495, no.1-3, pp.69 - 72 CHEMICAL PHYSICS LETTERS 495 1-3 69 72 scie scopus 000280116000014 2-s2.0-77955041715 Chemistry, Physical Physics, Atomic, Molecular & Chemical Chemistry Physics Article SURFACE MODIFICATION LOW-COST FILM dye-sensitized plasma ion-beam TiO2