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近年来,可交联材料在有机光电器件领域,尤其是聚合物太阳能电池领域,得到了广泛的应用研究。可交联材料作为活性层中的给体材料或受体材料以及制作有序本体异质结聚合物太阳能电池,可以提高器件的稳定性及光电转化效率。可交联材料应用于聚合物太阳能电池的电子传输层或空穴传输层,可以提高器件的开路电压、转化效率、稳定性等各项性能参数。本文根据可交联材料在聚合物太阳能电池中的功能的不同,详细地描述了可交联材料的官能团种类、处理时间、温度以及引发剂等因素对聚合物太阳能电池光电性能的影响,同时评述了可交联材料应用于聚合物太阳能电池的缓冲层及制作有序本体异质结聚合物太阳能电池的研究进展,最后展望了可交联材料在该领域的发展前景。 相似文献
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二元或多元聚合物组成的本体异质结具备高度稳定的微相分离形貌,带来潜在的器件寿命和稳定性方面的巨大优势,全聚合物活性层器件因而成为有机太阳能电池的重要发展方向和研究内容.本文系统介绍近年来苝二酰亚胺类聚合物受体的研究进展,以及将这类聚合物受体应用于全聚合物太阳能电池所取得的重要成果.通过多种不同共聚单元结构的设计和筛选、主链和侧链化学结构的调控和优化,获得了一系列性能优越的苝二酰亚胺聚合物受体,这些材料的运用大幅度地提升了全聚合物太阳能电池的能量转化效率.相关的研究数据和结果也为后续酰亚胺类聚合物受体的设计开发、全聚合物本体异质结活性层的形貌特征和光电转化机制的分析和研究,以及全聚合物太阳能电池器件性能的优化和提升提供了良好的实验基础. 相似文献
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设计合成了主链为聚2,8-{5,11-二烷基吲哚[3,2-b]咔唑}-4,7-二[2,5-噻吩]-5,6-二烷氧基-2,1,3-苯并噻二唑,具有不同侧链的2种平面型给-受体共轭聚合物(QP-2和QP-3),研究了其热学、光物理和光伏性质.用聚合物-PC71BM([6,6]-苯基C71丁酸甲酯)共混物作为活性层构筑了本体异质结聚合物太阳能电池.其中以QP-3为给体、以PC71BM为受体的光伏电池能量转换效率最高达到2.59%,开路电压为0.72 V,短路电流为9.24 mA/cm2,填充因子为0.38.XRD结果表明,平面型共轭聚合物具有较好的结晶性,原子力显微镜(AFM)显示平面型共轭聚合物易于发生微观相分离. 相似文献
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聚合物太阳电池因具有重量轻、制备工艺简单、成本低等特点近年来受到了国内外的广泛关注.其中体异质结型聚合物太阳电池(bulk heterojunction polymer solar cell,BHJ-PSC)是目前报道的具有高性能的器件之一.本文系统地综述了BHJ-PSC的最新研究进展.首先介绍了BHJ-PSC的结构及... 相似文献
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通过Stille聚合反应合成了含有苯并[1,2-b:4,5-b']二噻吩和二噻吩邻苯二甲酰亚胺的D-A结构平面共聚物PBDTPhBT.该聚合物热稳定性和在常见有机溶剂中的溶解性良好、在380~580nm范围内有强吸收.分子模拟计算的结果表明,聚合物主链具有较好的平面型.PBDTPhBT的光学带隙为2.10eV、用电化学方法测量的HOMO能级为5.23eV.以聚合物PBDTPhBT为给体、PC70BM为受体(给受体重量比为1:1)、Ca/Al为负极制备了本体异质结聚合物太阳能电池.在AM1.5,100mWcm2光照条件下器件的开路电压和短路电流分别为0.79V和5.63mAcm2,能量转换效率达到了1.76%. 相似文献
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聚合物光伏电池因具有重量轻、成本低以及可制成柔性大面积器件等优点而具有广阔的应用前景.近年来,采用共轭聚合物作为光伏电池活性层材料的研究进展十分迅速.本文介绍了聚合物光伏电池的工作原理和器件结构,综述了聚合物材料作为给体,在体相异质结型光伏器件中的最新研究进展,并对今后进一步提高这类电池的能量转换效率问题进行了探讨. 相似文献
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Remya Narayanan Amrita Das Dr. Melepurath Deepa Dr. Avanish Kumar Srivastava 《Chemphyschem》2013,14(17):4010-4021
A new design for a quasi‐solid‐state Forster resonance energy transfer (FRET) enabled solar cell with unattached Lucifer yellow (LY) dye molecules as donors and CdS/CdSe quantum dots (QDs) tethered to titania (TiO2) as acceptors is presented. The Forster radius is experimentally determined to be 5.29 nm. Sequential energy transfer from the LY dye to the QDs and electron transfer from the QDs to TiO2 is followed by fluorescence quenching and electron lifetime studies. Cells with a donor–acceptor architecture (TiO2/CdS/CdSe/ZnS‐LY/S2?‐multi‐walled carbon nanotubes) show a maximum incident photon‐to‐current conversion efficiency of 53 % at 530 nm. This is the highest efficiency among Ru‐dye free FRET‐enabled quantum dot solar cells (QDSCs), and is much higher than the donor or acceptor‐only cells. The FRET‐enhanced solar cell performance over the majority of the visible spectrum paves the way to harnessing the untapped potential of the LY dye as an energy relay fluorophore for the entire gamut of dye sensitized, organic, or hybrid solar cells. 相似文献
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Dr. Bong‐Gi Kim Kyeongwoon Chung Prof. Jinsang Kim 《Chemistry (Weinheim an der Bergstrasse, Germany)》2013,19(17):5220-5230
All‐organic dyes have shown promising potential as an effective sensitizer in dye‐sensitized solar cells (DSSCs). The design concept of all‐organic dyes to improve light‐to‐electric‐energy conversion is discussed based on the absorption, electron injection, dye regeneration, and recombination. How the electron‐donor–acceptor‐type framework can provide better light harvesting through bandgap‐tuning and why proper arrangement of acceptor/anchoring groups within a conjugated dye frame is important in suppressing improper charge recombination in DSSCs are discussed. Separating the electron acceptor from the anchoring unit in the donor–acceptor‐type organic dye would be a promising strategy to reduce recombination and improve photocurrent generation. 相似文献
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An Electron‐Deficient Building Block Based on the B←N Unit: An Electron Acceptor for All‐Polymer Solar Cells 下载免费PDF全文
Dr. Chuandong Dou Xiaojing Long Dr. Zicheng Ding Prof. Zhiyuan Xie Prof. Jun Liu Prof. Lixiang Wang 《Angewandte Chemie (International ed. in English)》2016,55(4):1436-1440
A double B←N bridged bipyridyl (BNBP) is a novel electron‐deficient building block for polymer electron acceptors in all‐polymer solar cells. The B←N bridging units endow BNBP with fixed planar configuration and low‐lying LUMO/HOMO energy levels. As a result, the polymer based on BNBP units (P‐BNBP‐T) exhibits high electron mobility, low‐lying LUMO/HOMO energy levels, and strong absorbance in the visible region, which is desirable for polymer electron acceptors. Preliminary all‐polymer solar cell (all‐PSC) devices with P‐BNBP‐T as the electron acceptor and PTB7 as the electron donor exhibit a power conversion efficiency (PCE) of 3.38 %, which is among the highest values of all‐PSCs with PTB7 as the electron donor. 相似文献
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Fahim Zakaria Mohyi Eddine Bouzzine Si Mohamed Ait Aicha Youssef Bouachrine Mohammed Hamidi Mohamed 《Research on Chemical Intermediates》2018,44(3):2009-2023
Research on Chemical Intermediates - The dye-sensitized solar cells containing a triphenylamine unit as the electron donor connected with a terminal cyanoacrylic acid electron acceptor by... 相似文献
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《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2017,129(10):2738-2742
A star‐shaped electron acceptor based on porphyrin as a core and perylene bisimide as end groups was constructed for application in non‐fullerene organic solar cells. The new conjugated molecule exhibits aligned energy levels, good electron mobility, and complementary absorption with a donor polymer. These advantages facilitate a high power conversion efficiency of 7.4 % in non‐fullerene solar cells, which represents the highest photovoltaic performance based on porphyrin derivatives as the acceptor. 相似文献
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SR Li CP Lee HT Kuo KC Ho SS Sun 《Chemistry (Weinheim an der Bergstrasse, Germany)》2012,18(38):12085-12095
We report here the synthesis and electrochemical and photophysical properties of a series of easily prepared dipolar organic dyes and their application in dye-sensitized solar cells (DSSCs). For the six organic dyes, the molecular structures comprised a triphenylamine group as an electron donor, a cyanoacrylic acid as an electron acceptor, and an electron-deficient diphenylquinoxaline moiety integrated in the π-conjugated spacer between the electron donor and acceptor moieties. The incorporation of the electron-deficient diphenylquinoxaline moiety effectively reduces the energy gap of the dyes and broadly extends the spectral coverage. DSSCs based on dye 6 produced the best overall cell performance of 7.35?%, which translates to approximately 79?% of the intrinsic efficiency of the DSSCs based on the standard N719 dye under identical experimental conditions. The high performance of DSSCs based on dye 6 among the six dyes explored is attributed to the combined effects of high dye loading on a TiO(2) surface, rapid dye regeneration, and effective retardation of charge recombination. 相似文献
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Song Ju Park Jung Min Cho Won‐Bae Byun Jong‐Cheol Lee Won Suk Shin In‐Nam Kang Sang‐Jin Moon Sang Kyu Lee 《Journal of polymer science. Part A, Polymer chemistry》2011,49(20):4416-4424
Polymer solar cells (PSCs) were fabricated using a ternary blend film consisting two conjugated polymers and a soluble fullerene derivative as the donor and acceptor materials, respectively. And, to compare ternary blend system, the single‐component copolymers consisting of the repeating units of each of the copolymers, used in ternary blend solar cells, were designed and synthesized for use as the electron donor materials in binary blend solar cells. We systematically investigated the field‐effect carrier mobilities and the optical, electrochemical, and photovoltaic properties of the copolymers. Under optimized conditions, the binary blend polymer systems showed power conversion efficiencies (PCEs) for the PSCs in the range 3.87–4.16% under AM 1.5 illumination (100 mW cm?2). All polymers exhibited similar PCEs that did not depend on the ratio of repeating units. The binary blend solar cell containing a single‐component copolymer as the electron donor material performed better than the ternary blend solar cell in this work. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011 相似文献
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Dye‐Sensitized Solar Cells Based on (Donor‐π‐Acceptor)2 Dyes With Dithiafulvalene as the Donor 下载免费PDF全文
Ting‐Hui Lee Dr. Chih‐Yu Hsu You‐Ya Liao Dr. Hsien‐Hsin Chou Heather Hughes Prof. Dr. Jiann T. Lin 《化学:亚洲杂志》2014,9(7):1933-1942
Dipolar metal‐free sensitizers (D‐π‐A; D=donor, π=conjugated bridge, A=acceptor) consisting of a dithiafulvalene (DTF) unit as the electron donor, a benzene, thiophene, or fluorene moiety as the conjugated spacer, and 2‐cyanoacrylic acid as the electron acceptor have been synthesized. Dimeric congeners of these dyes, (D‐π‐A)2, were also synthesized through iodine‐induced dimerization of an appropriate DTF‐containing segment. Dye‐sensitized solar cells (DSSCs) with the new dyes as the sensitizers have cell efficiencies that range from 2.11 to 5.24 %. In addition to better light harvesting, more effective suppression of the dark current than the D‐π‐A dyes is possible with the (D‐π‐A)2 dyes. 相似文献
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Dr. Sie‐Rong Li Chuan‐Pei Lee Dr. Hui‐Tung Kuo Prof. Kuo‐Chuan Ho Dr. Shih‐Sheng Sun 《Chemistry (Weinheim an der Bergstrasse, Germany)》2012,18(38):12085-12095
We report here the synthesis and electrochemical and photophysical properties of a series of easily prepared dipolar organic dyes and their application in dye‐sensitized solar cells (DSSCs). For the six organic dyes, the molecular structures comprised a triphenylamine group as an electron donor, a cyanoacrylic acid as an electron acceptor, and an electron‐deficient diphenylquinoxaline moiety integrated in the π‐conjugated spacer between the electron donor and acceptor moieties. The incorporation of the electron‐deficient diphenylquinoxaline moiety effectively reduces the energy gap of the dyes and broadly extends the spectral coverage. DSSCs based on dye 6 produced the best overall cell performance of 7.35 %, which translates to approximately 79 % of the intrinsic efficiency of the DSSCs based on the standard N719 dye under identical experimental conditions. The high performance of DSSCs based on dye 6 among the six dyes explored is attributed to the combined effects of high dye loading on a TiO2 surface, rapid dye regeneration, and effective retardation of charge recombination. 相似文献
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A star-shaped electron acceptor with porphyrin as core and rhodanine-benzothiadiazole as end groups linked with ethynyl units was developed for non-fullerene solar cells, in which a PCE of 1.9% with broad photo response was achieved when combining with a diketopyrrolopyrrole-polymer as electron donor. 相似文献