Chemical Methods to Control Charge Transfer at Nanoscale Interfaces

该项目的目的是开发方法来控制电子/能量转移过程中涉及化学合成的纳米级无机材料的界面。这种控制将通过多种无机组分（金属、半导体和/或绝缘）与功能性有机分子的基于溶液的组装来实现。对于初步研究，有三个系统的基础科学和商业的重要性是有针对性的：（1）离子表面涂层控制掺杂和界面电场的纳米粒子组件;（2）有机功能化的半导体纳米粒子，以驱动空间控制的光化学聚合;和（3）纳米粒子与多组分纳米级无机涂层的太阳能到化学能转换。 这些研究工作将以学生为导向，继续关注女性和少数民族学生的科学职业培训，并将在加州大学圣巴巴拉科学丰富，前沿，多学科的环境中进行。参与该项目的研究生将通过NSF和DoD资助的外展计划和非正式合作，担任本科生、高中教师和高中学生的导师。具有有用的电子和光吸收特性的纳米材料，使用廉价和可扩展的化学方法制成，可以积极影响重要的行业，从能源转换，电子和催化到化学传感，生物技术和医疗保健。为了实现与这种转变相关的社会效益，我们正在努力使用分子和无机涂层来综合控制电子在这类新兴材料中移动和相互作用的方式。 这些研究工作将以学生为导向，继续关注女性和少数民族学生的科学职业培训，并将在加州大学圣巴巴拉科学丰富，前沿，多学科的环境中进行。参与该项目的研究生将通过NSF和DoD资助的外展项目和非正式合作，担任本科生、高中教师和高中生的导师。

The aim of this project is to develop methods to control electron/energy transfer processes at interfaces involving chemically synthesized nanoscale inorganic materials. This control will be achieved through the solution-based assembly of multiple inorganic components (metallic, semiconducting, and/or insulating) with, in some cases, functional organic molecules. For initial study, three systems of fundamental scientific and commercial importance are targeted: (1) ionic surface coatings for controlling doping and interfacial electric fields in nanoparticle assemblies; (2) organic-functionalized semiconducting nanoparticles to drive spatially controlled photochemical polymerizations; and (3) nanoparticles with multicomponent nanoscale inorganic coatings for solar-to-chemical energy conversion. These research efforts will be student-driven, with continued focus on scientific career training for female and minority students, and will take place in the scientifically rich, cutting-edge, multi-disciplinary environment at UC Santa Barbara. The graduate students working on the project will serve as mentors to undergraduate students, high school teachers, and high school students through NSF- and DoD-funded outreach programs and informal collaborations.%%%Nanoscale materials with useful electronic and light-absorbing properties, made using inexpensive and scalable chemical methods, could positively impact important industries ranging from energy conversion, electronics, and catalysis to use in chemical sensing, biotechnology and health care. In order to achieve the societal benefits associated with such a transformation, we are working to synthetically control, using molecules and inorganic coatings, the way in which electrons move and interact in this emerging class of materials. These research efforts will be student-driven, with continued focus on scientific career training for female and minority students, and will take place in the scientifically rich, cutting-edge, multi-disciplinary environment at UC Santa Barbara. The graduate students working on the project will serve as mentors to undergraduate students, high school teachers, and high school students through NSF- and DoD-funded outreach programs and informal collaborations.