Dye-Sensitized Solar Cells Using Carbon Aerogel with Silver Sulfide Structures as Counter Electrodes
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- García-Flores Luis D.
- Universidad Autónoma de Ciudad Juárez, Instituto de Ingeniería y Tecnología
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- Morales-Reyes Eduardo. A.
- Universidad Autónoma de Ciudad Juárez, Instituto de Ingeniería y Tecnología
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- Reyes-Blas Hortensia
- Universidad Autónoma de Ciudad Juárez, Instituto de Ingeniería y Tecnología
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- Herrera-Robles Joel O.
- Universidad Autónoma de Ciudad Juárez, Instituto de Ingeniería y Tecnología
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- Jáquez-Muñoz Jesús M.
- Universidad Autónoma de Ciudad Juárez, Instituto de Ingeniería y Tecnología
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- Olivas-Armendáriz Imelda
- Universidad Autónoma de Ciudad Juárez, Instituto de Ingeniería y Tecnología
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- Hernández-Paz Juan F.
- Universidad Autónoma de Ciudad Juárez, Instituto de Ingeniería y Tecnología
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- Rodríguez-González Claudia A.
- Universidad Autónoma de Ciudad Juárez, Instituto de Ingeniería y Tecnología
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<p>Counter electrodes of Carbon Aerogel with Silver Sulfide Structures (CA/Ag2S) were synthetized by cathodic deposition and solid vapor reactions. Their optical and electrical properties were determined, and they were tested as counter electrodes in dye-sensitized solar cells instead of the conventional Pt. It was found that the Ag2S presence improves the optical and electrical conductivity of the counter electrodes. However, the impedance electrochemical spectra indicated increased resistivity (ERS) and charge transfer resistance (Rp) with increased Ag2S structures; this suggests that the interface (CA/Ag2S) may act as a barrier to electron transfer. Furthermore, the W1-R values decreased as the amount of Ag2S increased, indicating a higher catalytic activity for these samples. DSSC efficiencies range from 1 to 2.5%, lower than those reported for platinum. They are a consequence of a poor fill factor (FF) that can be explained by the electrolyte loss that occurs during cell testing due to the counter electrodes’ high absorption and catalytic properties. While the performance is not ideal, the high initial Jsc values (21 mA/cm2) suggest that this system may present an opportunity as a material for energy devices.</p>
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 65 (1), 54-60, 2024-01-01
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390017113108179968
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 033250146
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
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- 抄録ライセンスフラグ
- 使用不可