Journal ArticleDOI
Recent advances in solution-processed interfacial materials for efficient and stable polymer solar cells
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In this paper, the authors provide an overview on the recent development of solution processed organic, inorganic, and hybrid interfacial materials for bulk-heterojunction polymer solar cells.Abstract:
This article provides an overview on the recent development of solution processed organic, inorganic, and hybrid interfacial materials for bulk-heterojunction polymer solar cells. The introduction of proper interfacial materials to optimize the electronic and electrical properties between the interfaces of the light-harvesting active layer and the charge-collecting electrode has become an important criterion to improve the performance of polymer solar cells. The electronic processes at these interfaces play a critical role in determining the efficiency for photon-to-electricity conversion. An ideal interface requires the formation of Ohmic contact with minimum resistance and high charge selectivity to prevent charge carriers from reaching the opposite electrodes. For long-term stability of polymer solar cells, interfaces with matched surface energy are required to prevent interfacial dewetting and delamination. Several classes of interfacial materials including inorganic metal oxides, crosslinkable charge-transporting materials, conjugated polymer electrolytes, self-assembled functional molecules, and graphene-based materials are highlighted and the integration of these interfacial materials with new low bandgap polymers and fullerene derivatives as active materials in different device architectures is also discussed.read more
Citations
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Self-Doping Cathode Interfacial Material Simultaneously Enabling High Electron Mobility and Powerful Work Function Tunability for High-Efficiency All-Solution-Processed Polymer Light-Emitting Diodes
Xiaojun Yin,Guohua Xie,Yuhao Peng,Bowen Wang,Tianhao Chen,Shuqi Li,Wenhao Zhang,Lei Wang,Chuluo Yang,Chuluo Yang +9 more
TL;DR: In this article, a variety of N-hydrogenated/N-methylated pyridinium salts are elaborately designed and synthesized, and the intensities of the NH covalent bonds are strengthened step-by-step from 3,3′-(5′-(3-(pyrin-3-yl)phenyl)-[1,1′:3′,1″-terphenyl]-3,3″-diyl)dipyridine (Tm)-HCl to Tm-HBr and then, Tm
Journal ArticleDOI
Highly Efficient Inverted Organic Photovoltaics Containing Aliphatic Hyperbranched Polymers as Cathode Modified Layers
TL;DR: In this paper, the authors found that interfacial layers (IFLs) based on wholly aliphatic hyperbranched poly(amido acid)s (HBPAs) with interior tertiary amido groups can increase the performance of organic photovoltaics substantially.
Journal ArticleDOI
Light trapping using copper decorated nano-composite in the hole transport layer of organic solar cell
TL;DR: In this article, copper sulphide (CuS) nano-particles were employed in the hole transport layer (HTL) of thin film organic solar cells (TFOSC), to assist in the charge transport processes and improve the photons harvesting.
Journal ArticleDOI
Tailoring Opto-electrical properties of ultra-thin indium tin oxide films via filament doping: Application as a transparent cathode for indoor organic photovoltaics
Yong Woon Kim,Ji Soo Goo,Tae Ho Lee,Byeong Ryong Lee,Sang-Chul Shin,Hyeok Kim,Jae Won Shim,Tae Geun Kim +7 more
TL;DR: In this article, an electric field induced filament doping method was introduced to realize ultra-thin indium tin oxide with high conductivity, enabling substantial resistance reduction while retaining high transmittance and low surface roughness.
Journal ArticleDOI
Impact of ZnO Photoluminescence on Organic Photovoltaic Performance.
Ke Yang,Jiehao Fu,Jiehao Fu,Lijun Hu,Zhuang Xiong,Meng Li,Xingzhan Wei,Zeyun Xiao,Shirong Lu,Kuan Sun +9 more
TL;DR: The results together suggest that the intrinsic defect in ZnO nanoparticles has little impact on OPV performance, and it might be necessary to revisit the strategies for defect engineering or passivation in oxide-based interfacial materials.
References
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Journal ArticleDOI
Conjugated polymer-based organic solar cells
TL;DR: This review gives a general introduction to the materials, production techniques, working principles, critical parameters, and stability of the organic solar cells, and discusses the alternative approaches such as polymer/polymer solar cells and organic/inorganic hybrid solar cells.
Journal ArticleDOI
High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends
TL;DR: In this article, the authors report highly efficient polymer solar cells based on a bulk heterojunction of polymer poly(3-hexylthiophene) and methanofullerene.
Journal ArticleDOI
Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology
TL;DR: By applying specific fabrication conditions summarized in the Experimental section and post-production annealing at 150°C, polymer solar cells with power-conversion efficiency approaching 5% were demonstrated.
Journal ArticleDOI
Bulk heterojunction solar cells with internal quantum efficiency approaching 100
Sung Heum Park,Sung Heum Park,Anshuman Roy,Serge Beaupré,Shinuk Cho,Shinuk Cho,Nelson E. Coates,Ji Sun Moon,Ji Sun Moon,Daniel Moses,Mario Leclerc,Kwanghee Lee,Kwanghee Lee,Alan J. Heeger,Alan J. Heeger +14 more
TL;DR: In this paper, a polymer solar cell based on a bulk hetereojunction design with an internal quantum efficiency of over 90% across the visible spectrum (425 nm to 575 nm) is reported.
Journal ArticleDOI
Polymer–Fullerene Composite Solar Cells
TL;DR: Polymer-based organic photovoltaic systems hold the promise for a cost-effective, lightweight solar energy conversion platform, which could benefit from simple solution processing of the active layer.