P3HT纳米线-CdSe/CuInSe2核壳纳米四角体耦连体异质结太阳能电池的构筑与性能研究

项目名称： P3HT纳米线-CdSe/CuInSe2核壳纳米四角体耦连体异质结太阳能电池的构筑与性能研究

项目编号： No.61306019

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 谭付瑞

作者单位： 河南大学

项目金额： 25万元

中文摘要： 虽然近几年的研究使得有机/无机复合体异质结太阳能电池的光电效率达到了4%，但是有机半导体高分子较小的电荷迁移率、复合体系较低的电荷转移与传输效率仍然是制约这类光伏器件发展的瓶颈与难点。本项目针对这一制约因素，利用半导体高分子自组装一维纳米结构可提高电荷迁移率的优点，借鉴三维网络状通道提升电荷传输效率的特点，采用P3HT纳米线作为电子给体与网络状空穴传输体，创新性采用CdSe/CuInSe2核壳结构纳米四角体作为电子受体与网络输运通道，并进一步利用先进的耦合复合技术将两种纳米结构单元进行功能组合，创造性构建兼备高效电荷转移效率和输运收集效率的双网络耦连体异质结太阳能电池，并进行器件的性能优化研究。本课题可解决目前复合体异质结太阳能电池中电荷迁移率和转移传输效率低的关键技术问题，不仅能为提升体异质结太阳能电池的性能提供优良的复合材料和工艺参数，而且可为这类光伏器件的未来产业化提供相关科学依据。

中文关键词： 有机纳米线；核壳纳米四角体；耦合；体异质结；太阳能电池

英文摘要： The performance of hybrid bulk-heterjunction solar cells (BSCs) is still confined by a bottleneck problem of low charge mobility of organic molecule chains as well as the low charge transfer and transportation efficiency in the composite materials, although the optic-electric conversion efficiency has already been improved up to 4% during these years. Focusing on this critical problem, a novel and suitable solar cell structure is to be fabricated in this program: a hybrid bulk-heterojunction structure with two continuous charge transportation channels composed of coupled organic nanowires (poly(3-hexylthiophene, P3HT) and inorganic core-shell nanotetrapods (CdSe/CuInSe2). Herein, we take the advantage of improving charge mobility through formation of naniwires by self-assembling organic molucule chains, also, improving charge transportation efficiency through formation of three dimentional network-like channels. A core-shell nantetrapod composed of CdSe/CuInSe2 is newly adopted as the electrons acceptor and collecting path while the P3HT nanowire is used as the electrons donor and holes transporting channel. An anvanced technique of preparing coupled composites is applied to fabricate the functional connection between P3HT nanowires and CdSe/CuInSe2 nanotetrapods, so that a bulk-heterojunction solar cell with tw

英文关键词： organic nanowire；core-shell nanotetrapod；coupled；bulk-heterojunction；solar cell