“高效低成本新型薄膜光伏材料与器件的基础研究”项目立项报告

戴松元 孔凡太 胡林华 朱俊

摘 要：能源是人类社会赖以生存和发展的重要物质保障，是国民经济和社会发展的基础。随着化石能源的日趋枯竭和全球对“温室效应”的关注，开发利用清洁可再生能源正成为现在和未来世界能源科技发展的主旋律。本期973中拟以染料敏化太阳电池和硅基薄膜太阳电池为主要研究对象，纳入化合物半导体薄膜太阳电池和新型结构薄膜太阳电池，通过项目的深化实施，进一步解决上述电池在新型宽光谱吸收材料体系的完备、先进光管理设计、高效电池结构优化和低成本实现、以及大面积材料制备和器件制造中的关键科学和技术问题，探索研究新材料、新结构和电池机理，大幅提高电池的光电转化效率。在发挥上述电池原材料丰富、能耗低、工艺技术简单、成本优势的基础上，使其实现具有竞争力的低于0.5美元/峰瓦目标，在15至25年内能真正成为能源领域的重要组成部分。通过本项目的研究，将有利于促进太阳电池相关学科和交叉学科的发展，对薄膜光电子器件的薄膜材料人工设计、异质结理论、载流子有效传输和快速分离、光电子转换机理等理论更深层次的发展，亦具有十分重要的意义。

关键词：薄膜；光伏；材料与器件；太阳电池；染料敏化；硅薄膜

Abstract：Energy is the important material guarantee of the survival and development of human society and the foundation of the national economy and social development. With the depletion of the fossil energy and the increased attention on global "greenhouse effect"， the development and utilization of clean renewable energy has become the main theme of present and future world energy technology. The 973 project focuses on dye sensitized solar cells and thin film silicon solar cells， taking into account the II-VI thin film solar cells and the novel solar cells. Through the implementation of the project， we aim to solve the key scientific and technical problems on the novel wide spectral material system， advanced light management design， high performance device structure optimization and low cost fabrication， and large scale preparation of material and device. Novel materials， novel structure and cell mechanism are to be investigated to significally improve the power conversion efficiency. Based on the advantages of rich raw materials， low energy consumption， simple process technology and low cost， we aim to realize its competitive target below $0.5 per Watt Peak and then make it an important component part of the energy field within the next 15 to 25 years. This project will help promote the development of solar cell related disciplines and cross disciplines and also has a very important significance on material design， heterojunction theory， carrier effective transport and fast separation， optoelectronic mechanism of film optoelectronic devices.

Key Words：Thin-film；Photovoltaic；Matericals and devices；Solar Cell；Dye-sensitized silicon thin-film

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