Nano-interface engineering of heterojunction quantum dot solar cells and the effect on charge separation of multiple excitons
| Project/Area Number |
26286013
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nanomaterials chemistry
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
Shen Qing 電気通信大学, 情報理工学(系)研究科, 教授 (50282926)
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| Co-Investigator(Kenkyū-buntansha) |
豊田 太郎 電気通信大学, その他部局等, 名誉教授 (40217576)
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| Co-Investigator(Renkei-kenkyūsha) |
HAYASE Shuzi 九州工業大学, 生命体工学研究科, 教授 (80336099)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
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| Keywords | 量子ドット / 太陽電池 / PbS / PbSe / 光励起キャリアダイナミクス / 電荷移動 / 電荷分離 / 多重励起子 / 界面修飾 / 多重励起子生成 / ＰｂＳ / ＰｂＳｅ / 半導体量子ドット |
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| Outline of Final Research Achievements |
As one candidate of the next generation solar cells, colloidal quantum dot (CQD) based solar cells (CQDSCs) have attracted considerable interest and developed rapidly during the last few years. CQDSCs have some unique advantages such as the band-gap tunability, high absorption coefficient, multiple exciton generation (MEG) possibility and low cost for preparation. Although theoretical energy conversion efficiency of CQDSCs has been predicted to be about 44% much higher than the Shockley-Queisser limit (33%), it is still about 8% at present time (2014). Therefore, fundamental studies on the mechanism for improving energy conversion efficiency of CQDSCs are very important. In this project, we focus on clarifying the photoexcited carrier dynamics, especially the dynamics of MEG and improving the charge separation and suppress recombination in QD heterojunction solar cells by controlling the interfaces of CQDSCs as well as the approaches to improving the energy conversion efficiency.
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Report
(4 results)
Research Products
(61 results)
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[Journal Article] Improvement of photovoltaic performance of colloidal quantum dot solar cells using organic small molecule as hole-selective layer2017
Author(s)
Zhang Yaohong, Wu Guohua, Mora-Sero Ivan, Ding Chao, Liu Feng, Huang Qingxun, Ogomi Yuhei, Hayase Shuzi, Toyoda Taro, Wang Ruixiang, Otsuki Joe, and Shen Qing*
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Journal Title
The Journal of Physical Chemistry Letter
Volume: ８
Issue: 10
Pages: 2163-2169
DOI
NAID
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Alloying Strategy in CuInGaSe Quantum Dots for High Efficiency Quantum Dot Sensitized Solar Cells2017
Author(s)
Wenxiang Peng, Jun Du, Zhenxiao Pan, Naoki Nakazawa, Jiankun Sun, Zhonglin Du, Gencai Shen, Juan Yu, Jin-Song Hu*, Qing Shen*, and Xinhua Zhong*
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Journal Title
ACS Appl. Mater. Interfaces
Volume: 9
Issue: 6
Pages: 5328-5336
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Air Stable PbSe Colloidal Quantum Dot Heterojunction Solar Cells: Ligand-Dependent Exciton Dissociation, Recombination, Photovoltaic Property, and Stability2016
Author(s)
Yaohong Zhang, Chao Ding, Guohua Wu, Naoki Nakazawa, Jin Chang, Yuhei Ogomi, Taro Toyoda, Shuzi Hayase, Kenji Katayama, and Qing Shen*
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Journal Title
J. Phys. Chem. C
Volume: 120
Issue: 50
Pages: 28509-28518
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Neutral and anionic tetrazole-based ligands in designing novel ruthenium dyes for dye-sensitized solar cells2016
Author(s)
Guohua Wu, Ryuji Kaneko, Yaohong Zhang, Yoshinao Shinozaki, Kosuke Sugawa, Ashraful Islam, Liyuan Han, Idriss Bedja, Ravindra Kumar Gupta, Qing Shen, Joe Otsuki
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Journal Title
Journal of Power Sources
Volume: 307
Pages: 416-425
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Zn-Cu-In-Se Quantum Dot Solar Cells with a Certified Power Conversion Efficiency of 11.6%2016
Author(s)
Jun Du, Zhonglin Du, Jin-Song Hu, Zhenxiao Pan, Qing Shen, Jiankun Sun, Donghui Long, Hui Dong, Litao Sun, Xinhua Zhong, and Li-Jun Wan
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Journal Title
J. Am. Chem. Soc
Volume: 138
Issue: 12
Pages: 4201-4209
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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