Heterojunction Solar Cells Using Chemically co-doped Titania Nanotube Arrays for Simultaneous Light Absorption and Carrier Transport

使用化学共掺杂二氧化钛纳米管阵列同时进行光吸收和载流子传输的异质结太阳能电池

• 批准号: 1104994
• 负责人: Hao Zeng
• 金额: $ 55万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-07-01 至 2015-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1104994&HistoricalAwards=false
• 关键词: Heterojunction; Solar; Cells; Using; Chemically

Technical: This project centers on the fundamental understanding of the band gap engineering of nanowires, the band alignment at the nanowire heterojunction, and their effects on carrier injection and transport. The research aims to engineer both the TiO2 band gap by co-doping and the TiO2 surface with a p-type semiconductor heterojunction for solar cells in order to increase absorption, to separate charge separation via control of band alignment, and to minimize surface recombination. The research activities are at the intersection of physics, chemistry, and engineering, involving density functional theory, material synthesis, device fabrication, and structural and physical property characterizations and modeling. An important project goal is to develop a heterojunction solar cell based on chemically co-doped titania nanotube coated with a solution processed p-type semiconductor.Nontechnical: The project addresses basic research issues in a topical area of materials science with high technological relevance. Energy sustainability is expected to be the main potential benefit to the society of this research project on solar cells. The material systems and devices developed, as well as the fundamental knowledge gained, can be extended to other areas such as solid state lighting, chemical sensing, and flexible electronics. The project provides interdisciplinary training of graduate and undergraduate students.

技术：该项目以对纳米线的频带间隙工程的基本了解，纳米线异质结的频带对齐及其对载体注入和运输的影响。该研究的目的是通过共掺杂和与P型半导体异质结和TiO2表面一起设计TiO2带隙，以增加太阳能电池，以增加吸收，通过控制束带对齐，并使表面重组最小化，从而通过控制束带进行控制。研究活动在物理，化学和工程的交集中，涉及密度功能理论，材料合成，装置制造以及结构和物理性质的特征和建模。一个重要的项目目标是基于化学共同掺杂的二氧化钛纳米管开发出一个杂结太阳能电池，并涂有溶液处理的P型半导体。非技术性技术：该项目解决了具有高技术相关性的材料科学局部研究领域的基础研究问题。预期能源可持续性将成为该研究项目的太阳能电池社会的主要潜在好处。开发的材料系统和设备以及获得的基本知识可以扩展到其他领域，例如固态照明，化学传感和柔性电子产品。该项目提供了研究生和本科生的跨学科培训。