Properties of a Dye Sensitized Solar Cell using Electrodes with Au Nano Powder Blocking Layers
| Autor: | Yunyoung Noh, Jeongho Song, Ohsung Song, Minkyoung Choi, Kwangbae Kim |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Inorganic chemistry Metals and Alloys 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials 010309 optics Dye-sensitized solar cell symbols.namesake Chemical engineering Modeling and Simulation Phase (matter) 0103 physical sciences Electrode Nano symbols Particle Solar simulator 0210 nano-technology Raman spectroscopy |
| Zdroj: | Korean Journal of Metals and Materials. 54:519-525 |
| ISSN: | 2288-8241 1738-8228 |
| DOI: | 10.3365/kjmm.2016.54.7.519 |
| Popis: | Jeongho Song, Yunyoung Noh, Minkyoung Choi, Kwangbae Kim, and Ohsung Song* Department of Materials Science and Engineering, University of Seoul, Seoul 02504, Republic of Korea Abstract: We prepared working electrodes with blocking layers containing 0.0∼0.5 wt% Au nano powder to improve the energy conversion efficiencies (ECEs) of a dye sensitized solar cell (DSSC). TEM, FE-SEM, and AFM were used to characterize microstructure. XRD and micro-Raman were used to determine the phase and localized surface plasmon resonance (LSPR) effect of the blocking layer with Au nano powder. A solar simulator and a potentiostat were used to confirm the photovoltaic properties of the DSSC with the Au nano powder. From the results of the microstructure analysis, we confirmed that the Au nano powder had particle sizes of less than 70 nm, dispersed uniformly on the blocking layer. Based on the phase and composition analysis, we identified the presence of Au, and the Raman intensity increased as the amount of Au was increased. The photovoltaic results showed that the ECE reached 5.52% with the Au addition, compared to an ECE of 5.00% without the Au addition. This enhancement was due to the increased LSPR of the blocking layer with the Au addition. Our results suggest that we might improve the efficiency of a DSSC by the proper addition of Au nano powder on the blocking layer. †(Received November 24, 2015; Accepted February 22, 2016) |
| Databáze: | OpenAIRE |
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