EAGER: Novel Functionality-Enabling Devices Based on 1D and 2D ZnO Nanostructures on Flexible Substrates

智力优势：该项目的目标是展示基于柔性衬底上的1D和2D ZnO纳米结构的自供电光致变色系统的变革性想法的概念验证，以获得显着的潜在回报。功率转换效率可以低于3%，但是驱动电致变色材料的开路电压的重要度量被计算为可接受地高（~2.25- 2.75V）。首先，紫外光伏肖特基和p-n结器件，基于ZnO纳米线和薄膜，将制造和表征。最后，ZnO NW光伏电池和电致变色层的单片集成将被证明使用柔性聚合物作为基板，以实现自供电的智能窗户。这项工作的智力价值在于跨学科和综合方法，其成功将在许多领域产生变革性影响：该项目的总体承诺是在柔性基板上开发基于自供电纳米结构的电致变色器件方面取得突破。此外，未来的工程师将获得动手，解决问题的技能，在多个学科，包括纳米科学，同时采取必要的课程，在先进的表征，固态器件，纳米纤维，和光电致变色技术在亚利桑那州立大学。

Intellectual Merit: The goal of this project is to demonstrate proof-of-concept of the transformative idea of self-powered photo-electrochromic system based on 1D and 2D ZnO nanostructures on flexible substrates for significant potential payoffs. The power conversion efficiency may be below 3%, but the important metric of open circuit voltage to drive the electrochromic material is computed to be acceptably high (~2.25-2.75 V). Initially, UV photovoltaic Schottky and p-n junction devices, based on ZnO NWs and thin films, will be fabricated and characterized. Finally, monolithic integration of ZnO NW photovoltaic cells and electrocrhromic layers will be demonstrated using a flexible polymer as the substrate, to achieve self-powered smart windows. The intellectual merit of this work lies in the interdisciplinary and integrated approach, thesuccess of which will be transformative in a number of areas.Broader Impact: The overall promise of this project is in creating a breakthrough for developing self-powered nanostructure based electrochrmoic devices on flexible substrates. In addition, future engineers will gain hands-on, problem-solving skills in multiple disciplines including nanosciences, while taking necessary courses in advanced characterization, solid state devices, nanofabrication, and photoelectrochromic technologies at ASU.