共查询到19条相似文献,搜索用时 46 毫秒
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染料敏化太阳能电池是一种新型的太阳能电池,因具有低成本、易制备、环保等优点而引起全世界的广泛关注。介绍了染料敏化太阳能电池的发展历史、基本结构及工作原理,重点综述了染料敏化剂材料的分类和发展状况。染料敏化剂可分为纯有机染料和配合物染料两大类,纯有机染料敏化剂大致有三苯胺、香豆素、吲哚、花箐和多烯等几类。设计和开发新型纯有机染料敏化剂材料是提高器件光电转化效率较为有效的方法,而多种染料敏化剂协同敏化电池的短路电流密度(J_(sc))和开路电压(V_(oc))比单一的染料敏化电池更大,因此多种染料共敏化也成为进一步提高染料敏化太阳能电池效率比较可行的途径。最后,展望了有机染料敏化剂的发展前景。 相似文献
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简述了影响染料敏化太阳能电池(DSSC)光电转换效率的几个因素;按照分子结构分类,重点总结了近几年来国内外有关光敏染料在提高DSSC电池性能方面的最新研究进展,提出了存在的问题及解决对策,并展望了今后的研究方向。 相似文献
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染料敏化太阳能电池(Dye-sensitized solar cells,DSSC)作为第3代太阳能电池而受到广泛关注,但使用寿命短一直是制约DSSC进入实用阶段的主要因素之一。液态电解质的DSSC往往因为电解质挥发或渗漏而失效,因此封装工艺成为保障此类DSSC性能稳定和持久的重要手段。将DSSC相关技术中的封装环节独立出来,简述了近几年来DSSC封装工艺的进展。主要对小面积DSSC、大面积DSSC模块(包括柔性DSSC、可填充DSSC)和管状DSSC的封装材料和流程以及几种DSSC的性能特点进行阐述,对封装技术的发展方向以及应用提出了一些看法。 相似文献
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A perovskite solar cell (PSC) employing an organic–inorganic lead halide perovskite light harvester, seeded in 2009 with power conversion efficiency (PCE) of 3.8% and grown in 2011 with PCE of 6.5% in dye‐sensitized solar cell structure, has received great attention since the breakthrough reports ≈10% efficient solid‐state PCSs demonstrating 500 h stability. Developments of device layout and high‐quality perovskite film eventually lead to a PCE over 22%. As of October 31, 2017, the highest PCE of 22.7% is listed in an efficiency chart provided by NREL. In this Review, the methodologies to obtain highly efficient PSCs are described in detail. In order to achieve a PCE of over 20% reproducibly, key technologies are disclosed from the viewpoint of precursor solution chemistry, processing for defect‐free perovskite films, and passivation of grain boundaries. Understanding chemical species in precursor solution, crystal growth kinetics, light–matter interaction, and controlling defects is expected to give important insights into not only reproducible production of high PCE over 20% but also further enhancement of the PCE of PCSs. 相似文献
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Ruili Wang Xun Wu Kaimin Xu Wenjia Zhou Yuequn Shang Haoying Tang Hao Chen Zhijun Ning 《Advanced materials (Deerfield Beach, Fla.)》2018,30(7)
Highly efficient PbS colloidal quantum dot (QD) solar cells based on an inverted structure have been missing for a long time. The bottlenecks are the construction of an effective p–n heterojunction at the illumination side with smooth band alignment and the absence of serious interface carrier recombination. Here, solution‐processed nickel oxide (NiO) as the p‐type layer and lead sulfide (PbS) QDs with iodide ligand as the n‐type layer are explored to build a p–n heterojunction at the illumination side. The large depletion region in the QD layer at the illumination side leads to high photocurrent. Interface carrier recombination at the interface is effectively prohibited by inserting a layer of slightly doped p‐type QDs with 1,2‐ethanedithiol as ligands, leading to improved voltage of the device. Based on this graded device structure design, the efficiency of inverted structural heterojunction PbS QD solar cells is improved to 9.7%, one time higher than the highest efficiency achieved before. 相似文献
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TiO2作为光阳极薄膜材料,广泛应用于染料敏化太阳电池(DSC)中.在TiO2多孔薄膜中掺碳纳米管,不仅可以加快光生电子在TiO2薄膜内的传输,同时也可以增加电子寿命,从而提高染料敏化太阳电池的效率.本文综述了近年来在TiO2中掺碳纳米管的研究成果,简要介绍了碳纳米管在DSC中的作用;归纳了掺杂于TiO2光阳极的碳纳米... 相似文献
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Pablo Cesar Carbo Vela Enrique Martinez Pena Juan Lopez Hemandez Eddie Nahflm Armendariz Mireles Jose Amparo Rodriguez Garcia Enrique Rocha Rangel 《材料科学与工程:中英文B版...》2013,(8):535-538
This work describes the development of solar cells manufactured with different natural dyes, with the purpose to determine their photoelectrochemical properties, employing for that virtual instrumentation. Data acquisitions and statistical process of the same, are realized through graphical programming software. The system has facilities for measurements, acquisitions and to see permanently in the computer display, information about the performance of the solar cells, as well as environmental parameters such as; temperature and the I-V characteristic curve of the solar cell. This monitoring system pretends to be part of a permanent station for monitoring variables of the manufactured solar cells. 相似文献