Breat figure based additive manufacturing of single-walled carbon nanotubes for innovative solar cells
| Project/Area Number |
15K17983
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Thermal engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
崔 可航 東京大学, 工学(系)研究科(研究院), 研究員 (20749014)
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| Project Period (FY) |
2015-04-01 – 2016-03-31
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| Project Status |
Discontinued (Fiscal Year 2015)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 熱工学 / 太陽電池 / ナノ材料 |
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| Outline of Annual Research Achievements |
This project targets at high-efficiency of organic and perovskite solar cells, and at the same time investigate the underlying mechanisms of fluid-nanomaterials interaction. The research achievement is summarized as follows:
1 We have proposed a new architecture for organic solar cell which employs molybdenum oxide-SWNT nanocomposite layer as transparent electron blocking electrode. The low-lying work function of molybdenum oxide served as p-type dopant for SWNTs, which results in a three-fold decrease in the sheet resistance of SWNTs. The doping effect of molybdenum oxide was confirmed by UV-vis-NIR absorption spectroscopy and photoelectron yield spectroscopy. The SWNT organic solar cell in this work showed a power conversion efficiency of 6.04%. Flexible application shows 3.91% efficiency and is capable of withstanding a severe cyclic flex test. The research results were published in Journal of the American Chemical Society.
2 We further investigated the breath-figure interaction between fluid and SWNTs by modulating the diameters of SWNTs. We have proposed a new catalyst design paradigm which utilizes the anchoring effect between Co and Cu. The diameter of SWNTs was reduced from 2 nm to 0.75 nm, with the Raman G/D ratio kept over 30. The result has been submitted to Nanoscale (now under review) presented in several conferences as invited speech (see 学会発表).
The fluid-nanomaterial interaction and additive manufacturing of SWNT architecture will be continued at MIT under the support of MIT-UTokyo International Science and Technology Initiative.
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Report
(1 results)
Research Products
(11 results)
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[Presentation] Alcohol Catalytic CVD Growth of Randomly-Oriented and Vertical-Aligned Single-Walled Carbon Nanotubes with Sub-nanometer Diameter2015
Author(s)
Kehang Cui, Hua An, Bo Hou, Hiroki Takezaki, Ryo Yoshikawa, Shinnosuke Ohyama, Rong Xiang, Shohei Chiashi, Shigeo Maruyama
Organizer
Guadalupe Workshop VII
Place of Presentation
Bandera, Texas, USA
Year and Date
2015-04-10
Related Report
Invited
