期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 80, 期 -, 页码 311-317出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2019.08.009
关键词
Freestanding TiO2 nanotube arrays; Dye-sensitized solar cell; Plamonic effect; Charging effect; Anodization; Au nanoparticles
资金
- First Research in Lifetime through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [NRF-2018R1C1B5085632, NRF 2016M3A9B6918892]
- Research Base Construction Fund Support Program - Chonbuk National University in 2018
Au nanoparticles (NPs) were incorporated into the channels of freestanding TiO2 nanotube arrays (TNTAs) by an electrodeposition method and then applied to dye-sensitized solar cells (DSSCs) for light harvesting to improve the power conversion efficiency (PCE). The average size of Au NPs incorporated into TNTA channels was approximately 70 nm, and the extinction of the Au NPs by UV-vis spectra was approximately 530 nm, which is similar to the absorbance of the ruthenium dye (N719) used in DSSCs. The PCE of DSSCs based on TNTAs containing Au NPs increased to 6.80% from a PCE of 5.66% without Au NPs, an enhancement of 20.14% owing to light harvesting from the NP plasmonic and charging effects. However, the PCE of DSSCs based on TNTAs with excess Au NPs decreased from 6.80% to 5.49% due to aggregation of the Au NPs, which led to a decreased open-circuit voltage and fill factor. (C) 2019 The Author(s). Published by Elsevier B.V. on behalf of The Korean Society of Industrial and Engineering Chemistry.
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