Enhanced Performance of DSSCs Based on the Insertion Energy Level of CdS Quantum Dots
Cadmium sulfide (CdS) quantum dots (QDs) are assembled onto the TiO2 films by chemical bath deposition method (CBD). And the QDs size is controlled by the times of CBD cycles. They are characterized by UV-visible absorption. To avoid the photo corrosion and electrolyte corrosion, CdS and N719 are se...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2014/219704 |
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| _version_ | 1832556590447722496 |
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| author | Xiaoping Zou Zhe Sun |
| author_facet | Xiaoping Zou Zhe Sun |
| author_sort | Xiaoping Zou |
| collection | DOAJ |
| description | Cadmium sulfide (CdS) quantum dots (QDs) are assembled onto the TiO2 films by chemical bath deposition method (CBD). And the QDs size is controlled by the times of CBD cycles. They are characterized by UV-visible absorption. To avoid the photo corrosion and electrolyte corrosion, CdS and N719 are sequentially assembled onto the nanocrystalline TiO2 films to prepare a CdS/N719 cosensitized photo electrode for the dye-sensitized solar cells. In the structure of TiO2/CdS/N719 electrode, the reorganization of energy levels between CdS and N719 forms a stepwise structure of band-edge levels which is advantageous to the electron injection and hole recovery of CdS and N719 QDs. The open circuit voltage (Voc), short circuit current density (Jsc), and efficiency are increased. |
| format | Article |
| id | doaj-art-0b5c4f627a7744758ef7031cce1be4c3 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-0b5c4f627a7744758ef7031cce1be4c32025-02-03T05:44:51ZengWileyJournal of Chemistry2090-90632090-90712014-01-01201410.1155/2014/219704219704Enhanced Performance of DSSCs Based on the Insertion Energy Level of CdS Quantum DotsXiaoping Zou0Zhe Sun1Research Center for Sensor Technology, Beijing Key Laboratory for Sensor, Ministry-of-Education Key Laboratory for Modern Measurement and Control Technology, School of Applied Sciences, Beijing Information Science and Technology University, Jianxiangqiao Campus, Beijing 100101, ChinaResearch Center for Sensor Technology, Beijing Key Laboratory for Sensor, Ministry-of-Education Key Laboratory for Modern Measurement and Control Technology, School of Applied Sciences, Beijing Information Science and Technology University, Jianxiangqiao Campus, Beijing 100101, ChinaCadmium sulfide (CdS) quantum dots (QDs) are assembled onto the TiO2 films by chemical bath deposition method (CBD). And the QDs size is controlled by the times of CBD cycles. They are characterized by UV-visible absorption. To avoid the photo corrosion and electrolyte corrosion, CdS and N719 are sequentially assembled onto the nanocrystalline TiO2 films to prepare a CdS/N719 cosensitized photo electrode for the dye-sensitized solar cells. In the structure of TiO2/CdS/N719 electrode, the reorganization of energy levels between CdS and N719 forms a stepwise structure of band-edge levels which is advantageous to the electron injection and hole recovery of CdS and N719 QDs. The open circuit voltage (Voc), short circuit current density (Jsc), and efficiency are increased.http://dx.doi.org/10.1155/2014/219704 |
| spellingShingle | Xiaoping Zou Zhe Sun Enhanced Performance of DSSCs Based on the Insertion Energy Level of CdS Quantum Dots Journal of Chemistry |
| title | Enhanced Performance of DSSCs Based on the Insertion Energy Level of CdS Quantum Dots |
| title_full | Enhanced Performance of DSSCs Based on the Insertion Energy Level of CdS Quantum Dots |
| title_fullStr | Enhanced Performance of DSSCs Based on the Insertion Energy Level of CdS Quantum Dots |
| title_full_unstemmed | Enhanced Performance of DSSCs Based on the Insertion Energy Level of CdS Quantum Dots |
| title_short | Enhanced Performance of DSSCs Based on the Insertion Energy Level of CdS Quantum Dots |
| title_sort | enhanced performance of dsscs based on the insertion energy level of cds quantum dots |
| url | http://dx.doi.org/10.1155/2014/219704 |
| work_keys_str_mv | AT xiaopingzou enhancedperformanceofdsscsbasedontheinsertionenergylevelofcdsquantumdots AT zhesun enhancedperformanceofdsscsbasedontheinsertionenergylevelofcdsquantumdots |