| 项目编号: | 1748101
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| 项目名称: | EAGER: Interface Engineering for Low-Temperature Process and Stable Organometal Perovskite Solar Cells |
| 作者: | Qiuming Yu
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| 承担单位: | University of Washington
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| 批准年: | 2017
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| 开始日期: | 2017-08-15
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| 结束日期: | 2019-01-31
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| 资助金额: | 150000
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Engineering - Chemical, Bioengineering, Environmental, and Transport Systems
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| 英文关键词: | solar cell
; organometal halide perovskite
; solar electricity
; sustainable solar energy
; low-temperature manufacture process
; perovskite-based photovoltaic technology
; low temperature
; low cost
; roll-to-roll low-cost manufacturing
; research project
; perovskite film
; stability
; perovskite layer
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| 英文摘要: | Photovoltaic (PV) technology is a promising method to convert sustainable solar energy into electricity. In order to further lower the cost of solar electricity, increasing efficiency of solar cells, and therefore solar cell modules, becomes more critical because the same power target can be reached with the installation of fewer modules. Recently, organometal halide perovskites have attracted considerable attention as promising PV materials because of the rapid increase in single-junction record efficiencies to exceed 20%, their simple device structures, and the possibility for roll-to-roll low-cost manufacturing on flexible substrates. However, achieving high performance via a low-temperature manufacture process and long-term solar cell stability is still challenging for solar cells based on organometal halide perovskites. This research project seeks to gain fundamental knowledge supporting the discovery of new solar cell interface materials that will have greater stability towards moisture and air while retaining high efficiency. The project is also providing research opportunities for freshmen from the Clean Energy Alliances for Learning and Vision for Underrepresented Americans (ALVA) program and leveraging the research results for the outreach program of Introduce A Girl to Photonics Fair. The fundamental knowledge gained from these materials will make significant impacts on the fields of photovoltaics, optoelectronics and new semiconductor materials.
The objective of this research project is to research new hole transport layer (HTL) materials to improve the performance and stability of perovskite solar cells by introducing internal dipoles and by manipulating the morphology of perovskite films. The new HTL materials utilize poly (3, 4-ethylenedioxythiophene) (PEDOT) as a hole transport backbone while different functional group side chains offer to form dipole that could modify the band energy alignment. By modifying the band energy alignment of the HTL structure and the morphology of the perovskite layers, it is hypothesized that an improvement in charge transport and collection as well as device stability will result. The PEDOT-based HTL materials are being synthesized and the electronic, optical and structural properties of HTL thin films fabricated at low temperatures are being investigated. The new PEDOT-based HTLs are being deployed in planar p-i-n structure perovskite solar cells and the device performance and stability are being tested. Organometal halide perovskites exhibit a broad range of band gap enabling the possibility to make highly efficient single-junction and tandem solar cells. This research project could transform photovoltaic technology and make it possible to commercialize perovskite-based photovoltaic technology with competitively low cost. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/89346
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Qiuming Yu. EAGER: Interface Engineering for Low-Temperature Process and Stable Organometal Perovskite Solar Cells. 2017-01-01.
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