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：该项目的重点是对纳米线带隙工程、纳米线异质结处的能带排列及其对载流子注入和传输的影响的基本了解。该研究旨在通过共掺杂设计 TiO2 带隙，并通过 p 型半导体异质结设计太阳能电池的 TiO2 表面，以增加吸收，通过控制能带排列来分离电荷分离，并最大限度地减少表面复合。研究活动处于物理、化学和工程学的交叉点，涉及密度泛函理论、材料合成、器件制造以及结构和物理特性表征和建模。一个重要的项目目标是开发一种基于化学共掺杂二氧化钛纳米管的异质结太阳能电池，该纳米管涂有经过溶液处理的 p 型半导体。非技术性：该项目解决了具有高技术相关性的材料科学主题领域的基础研究问题。能源可持续性预计将成为该太阳能电池研究项目给社会带来的主要潜在利益。开发的材料系统和设备以及获得的基础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。该项目为研究生和本科生提供跨学科培训。