CAREER: Building a qualitative and quantitative understanding of optoelectronic processes in materials for solar energy conversion: from molecules to material
职业:建立对太阳能转换材料光电过程的定性和定量理解:从分子到材料
基本信息
- 批准号:0746210
- 负责人:
- 金额:$ 40万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2008
- 资助国家:美国
- 起止时间:2008-05-01 至 2014-04-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
0746210Gesquiere The study of the photophysical and optoelectronic properties of a functioning conducting polymer Bulk-Heterojunction Organic Photovoltaic Device (BH-OPV) is extremely complicated due to the complex nanostructure and overall morphology of the conducting polymer materials applied in these devices. As a result, device performance has remained below expectations and controversies have arisen about the appropriate active layer composition and thickness. To fundamentally address the issues of light absorption and conversion of absorbed light to free charge carriers in active conducting polymer materials for solar energy conversion we will develop a new class of composite nanoparticles that will be studied in a device environment. These nanoparticles contain a limited number of molecules but exhibit bulk properties, and are therefore highly suitable for the study of complex processes in highly heterogeneous materials. Of particular interest are the mechanism and kinetics related to interfacial charge separation/recombination, properties that are crucial to the function of BH-OPVs and are directly affected by molecular conformation, architecture and electronic structure. By the proposed single nanoparticle studies we will gain molecular and nanoscale level insight that will yield detailed knowledge on the bulk material that would not be accessible otherwise. In particular, we will obtain an improved understanding of interfacial charge transfer and separation processes occurring at molecular and mesoscale electron donor-acceptor interfaces while developing new techniques and methodologies for research on materials for solar energy conversion. The proposed research will be integrated with a novel educational approach. The vision for science related (STEM) education is to increase interest, excitement, and retention of teachers and students in STEM education and careers through inquiry based learning, and development of a sustainable learning community between the involved learning partners (students, teachers, parents, and the community at large). In addition, current issues in STEM education are primarily motivation issues in dealing with subject areas that are considered ?very difficult?. Therefore, we propose an approach that targets both interesting deliveries, and emotional support and development for students and instructors. The proposed research program also has implications beyond academia. Solar energy is the main candidate to meet the energy needs of our society, both from the perspective of supplementing our existing energy resources as well as from the perspective of harvesting a fuel that will reduce the pressure that our society is putting on its living environment. In the short term the societal impact will also be reflected in the education and support of two graduate students from underrepresented groups at the University of Central Florida. On a broader scale, Orlando and Florida in general have highly diverse communities at the social, economic and ethnic levels. We have a large population of Hispanic and African American students of diverse social and economic backgrounds in the community. The proposed program is built to actively reach out to and include these groups in promoting STEM education and careers. The local community will also be involved in encounters with research for designed for a broad audience through exhibitions and open-house events. In addition, we have a major resource available for community outreach in the Florida Solar Energy Center (FSEC). FSEC has been a leader in renewable energy and energy efficiency research and training for 30 years. FSEC is also distinguished as the largest and most active state-supported research and training institute in the United States in the area of renewable energy and building energy efficiency, and also provides additional community services including increasing community awareness to energy related issues, system testing, certification, continuing education and disaster relief among others.
功能性导电聚合物本体异质结有机光伏器件(BH-OPV)的物理和光电性质的研究由于这些器件中应用的导电聚合物材料的复杂纳米结构和整体形态而极其复杂。因此,器件性能一直低于预期,并且关于适当的有源层组成和厚度出现了争议。为了从根本上解决太阳能转换的活性导电聚合物材料中的光吸收和吸收光转化为自由电荷载流子的问题,我们将开发一类新的复合纳米颗粒,并将在设备环境中进行研究。这些纳米颗粒含有有限数量的分子,但表现出整体性质,因此非常适合研究高度异质材料中的复杂过程。特别感兴趣的是与界面电荷分离/重组相关的机制和动力学,这些特性对BH-OPV的功能至关重要,并直接受分子构象,结构和电子结构的影响。通过所提出的单个纳米颗粒研究,我们将获得分子和纳米级水平的洞察力,这将产生关于散装材料的详细知识,否则将无法获得。特别是,我们将获得在分子和介观电子供体-受体界面发生的界面电荷转移和分离过程的更好的理解,同时开发新的技术和方法用于太阳能转换材料的研究。拟议的研究将与一种新的教育方法相结合。科学相关(STEM)教育的愿景是通过基于探究的学习,以及在参与学习的合作伙伴(学生,教师,家长和整个社区)之间发展可持续的学习社区,提高教师和学生对STEM教育和职业的兴趣,兴奋和保留。此外,目前STEM教育的问题主要是在处理被考虑的学科领域的动机问题?很难吗?因此,我们提出了一种方法,目标是有趣的交付,情感支持和发展的学生和教师。拟议的研究计划也具有学术界以外的影响。 太阳能是满足我们社会能源需求的主要候选者,无论是从补充我们现有能源资源的角度,还是从收集燃料的角度,都将减少我们社会对其生活环境的压力。在短期内,社会影响还将反映在对来自中佛罗里达大学代表性不足群体的两名研究生的教育和支持上。在更广泛的范围内,奥兰多和佛罗里达总体上在社会、经济和种族层面上有着高度多样化的社区。我们有大量的西班牙裔和非洲裔美国学生在社区不同的社会和经济背景。拟议的计划旨在积极接触并包括这些群体,以促进STEM教育和职业。当地社区也将通过展览和开放日活动参与为广大观众设计的研究。此外,我们在佛罗里达太阳能中心(FSEC)有一个主要的资源可用于社区外展。30年来,FSEC一直是可再生能源和能源效率研究和培训的领导者。FSEC也是美国可再生能源和建筑能源效率领域最大和最活跃的国家支持的研究和培训机构,并提供额外的社区服务,包括提高社区对能源相关问题的认识,系统测试,认证,继续教育和救灾等。
项目成果
期刊论文数量(0)
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科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Andre Gesquiere其他文献
Andre Gesquiere的其他文献
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{{ truncateString('Andre Gesquiere', 18)}}的其他基金
REU Site: Engineering and Nanoscience of Materials and Device Applications in Biotechnology and Medicine
REU 网站:生物技术和医学中材料和设备应用的工程和纳米科学
- 批准号:
1560007 - 财政年份:2016
- 资助金额:
$ 40万 - 项目类别:
Standard Grant
REU Site: Hard and Soft Materials in Nanoscience Technology Driven Energy Applications
REU 网站:纳米科学技术驱动的能源应用中的硬材料和软材料
- 批准号:
1156747 - 财政年份:2012
- 资助金额:
$ 40万 - 项目类别:
Continuing Grant
Engineering and study of a new multifunctional sensing nanoprobe for direct and rapid delivery of cargo to cytosol, reporting on the delivery event, and quantification of delivered
新型多功能传感纳米探针的工程和研究,用于直接快速地将货物递送至细胞质,报告递送事件,并对递送物进行量化
- 批准号:
1159500 - 财政年份:2012
- 资助金额:
$ 40万 - 项目类别:
Standard Grant
NER: Nanoscale Optical and Electronic Processes in Active Nanostructures and Devices for Solar Energy Conversion
NER:用于太阳能转换的活性纳米结构和器件中的纳米级光学和电子过程
- 批准号:
0608870 - 财政年份:2006
- 资助金额:
$ 40万 - 项目类别:
Standard Grant
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