基于新型碳基量子点增强聚合物太阳能电池性能及其机制的研究

项目名称： 基于新型碳基量子点增强聚合物太阳能电池性能及其机制的研究

项目编号： No.51503228

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 一般工业技术

项目作者： 杨玉照

作者单位： 暨南大学

项目金额： 21万元

中文摘要： 聚合物太阳能电池由于其制备成本低、适用于大面积及柔性器件的制备的优点而发展迅速，针对聚合物太阳能电池的光利用率低、器件内能级匹配欠佳等导致的器件效率较低的问题，本项目拟设计并制备光电性能易调控的碳基量子点材料。通过调控碳基量子点的光学特性、光诱导电子转移特性、偶极性等，优化器件对光的利用率、界面层特性、激子产生及分离、载流子运输及收集，从而提高聚合物太阳能电池的光伏性能。在研究碳基量子点微结构、共轭聚合物分子链结构、给体-受体相分离程度等对光谱特征影响的基础上，探索碳基量子点聚合物光伏器件体系激子、声子以及光子等基本量子之间的耦合和转化机制，阐明碳基量子点提高聚合物太阳能电池性能的机理，为设计新型高效的聚合物太阳能电池提供依据。

中文关键词： 碳基量子点；聚合物太阳能电池

英文摘要： Polymer solar cells (PSCs) have developed rapidly during the past decade because of their various advantages, such as low-cost processing and suitability to industrial manufacturing of large-area and flexible devices. However, the power conversion efficiency (PCE) is poor due to the inadequate absorption of sunlight and the mismatch of the energy levels. Smart materials based on carbon quantum dots offer a promising prospect for high performance PSCs. In this project, carbon quantum dots are used to improve the absorption of sunlight, the property of the interlayer, the generation and separation of excitons, the transfer and extraction of carriers of PSCs by manipulating the optical properties, photo-induced electron transfer and the dipole polarity. The enhanced mechanism of PSCs by carbon quantum dots is illustrated by studies of the micro-structure of carbon quantum dots, the chain structure of conjugated polymers, the degree of donor/accepter separations. This work may get a deep insight into the coupling and the transfer mechanism of exciton, phonon and photon in the carbon quantum dots-PSCs system, providing a scientific basis and theoretical guidance for the design and fabrication of high-performance polymer solar cells.

英文关键词： carbon quantum dots;polymer solar cells