Alkylated Indacenodithiophene-Based Non-fullerene Acceptors with Extended π-Conjugation for High-Performance Large-Area Organic Solar Cells

2020 ◽  
Vol 12 (45) ◽  
pp. 50638-50647
Author(s):  
Hee Su Kim ◽  
Shafket Rasool ◽  
Won Suk Shin ◽  
Chang Eun Song ◽  
Do-Hoon Hwang
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Large Area

Development of Highly Crystalline Donor–Acceptor-Type Random Polymers for High Performance Large-Area Organic Solar Cells

2017 ◽  
Vol 50 (19) ◽  
pp. 7567-7576 ◽  
Author(s):  
Jae Hoon Yun ◽  
Hyungju Ahn ◽  
Phillip Lee ◽  
Min Jae Ko ◽  
Hae Jung Son
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Large Area ◽  
Donor Acceptor

High-Performance Large-Area Organic Solar Cells Enabled by Sequential Bilayer Processing via Nonhalogenated Solvents

2018 ◽  
Vol 9 (1) ◽  
pp. 1802832 ◽  
Author(s):  
Sheng Dong ◽  
Kai Zhang ◽  
Boming Xie ◽  
Jingyang Xiao ◽  
Hin-Lap Yip ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Large Area

Printable SnO2 cathode interlayer with up to 500 nm thickness-tolerance for high-performance and large-area organic solar cells

2020 ◽  
Vol 63 (7) ◽  
pp. 957-965 ◽  
Author(s):  
Yiming Bai ◽  
Chunyan Zhao ◽  
Shuai Zhang ◽  
Shaoqing Zhang ◽  
Runnan Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Large Area ◽  
Thickness Tolerance ◽  
Cathode Interlayer

Efficiency Improvement of Organic Solar Cells Using 350 nm Surface Relief Grating by Holographic Lithography

2020 ◽  
Vol 12 (4) ◽  
pp. 484-489
Author(s):  
Minghui You ◽  
Jiayin Song ◽  
Zhaoxin Wang ◽  
Bei Wang ◽  
Jingsheng Liu
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Light Trapping ◽  
Grating Period ◽  
Fdtd Simulation ◽  
Large Area ◽  
Device Structure ◽  
Sem Images ◽  
Conversion Efficiencies

There was inefficient light absorption in the thin active layers due to optical losses in Organic Solar Cells (OSCs) with relatively large area. Therefore, it is a key issue to have a light trapping structure for highly efficient OSCs. For high performance devices fabrication, a smart grating was fabricated using holographic photolithography incorporated with wet etching technology. Scanning electron microscopy (SEM) images of fabrication were employed before/after spin-coating active layer. With the aid of optical finite difference time Domain (FDTD) simulation for optical effect, the optimized device structure ITO (1D grating)/PEDOT:PSS (40 nm)/PBDB-T:ITIC (100 nm)/PDINO (5 nm)/Al (100 nm) was obtained. The experimental results showed that when the grating period was 350 nm, depth 40 nm, the power conversion efficiencies (PCE) reached to 9.51%, an apparent increase from those of the typical P3HT:PC71BM structure. This work indicates that the diffraction gratings had a potential to realize more efficient organic photovoltaics, if suitable fabrication processing methods can be developed.

scholarly journals Towards all-solution-processed top-illuminated flexible organic solar cells using ultrathin Ag-modified graphite-coated poly(ethylene terephthalate) substrates

Nanophotonics ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 297-306 ◽  
Author(s):  
Shuanglong Wang ◽  
Yi Zhao ◽  
Hong Lian ◽  
Cuiyun Peng ◽  
Xuyong Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Ethylene Terephthalate ◽  
Bending Test ◽  
Large Area ◽  
Solution Processed ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Flexible Organic Solar Cells

AbstractAll-solution-processed flexible organic solar cells (FOSCs) with high power conversion efficiency (PCE) are the prerequisite for application in low-cost, large-area, flexible, photovoltaic devices. In this work, high-performance, top-illuminated FOSCs using ultrathin Ag-modified graphite-coated poly(ethylene terephthalate) (PET) substrates are demonstrated. The ultrathin Ag-modified graphite/PET substrates have excellent electric conductivity, mechanical flexibility, and easy processability for FOSCs. A PCE of 5.31% for FOSCs, based on the blend system poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo [1,2-b:4,5-b′]dith-iophene-co-3-fluorothieno[3,4-b]thiophene-2-carboxylate]: [6,6]-phenyl-C7l-but-yric acid methyl ester, having a bilayer of MoOx/Ag upper transparent anode is demonstrated. Top-illuminated FOSCs with a transparent upper electrode of solution-processed Ag nanowires also yielded a PCE of 3.76%. All-solution-processed FOSCs exhibit excellent mechanical flexibility and retain >81% of the initial efficiency after 500 cycles of bending test. Furthermore, graphite-based electrodes demonstrate good heat-insulation properties. The outcomes of this work offer an alternative to fabricate high-performance, all-solution-processable, top-illuminated FOSCs, providing a commercially viable approach for application in large-area solar cells that can be prepared by printing and roll-to-roll fabrication processes.

High-Performance and Low-Energy Loss Organic Solar Cells with Non-fused Ring Acceptor by Alkyl Chain Engineering

2021 ◽  
pp. 129768
Author(s):  
Dou Luo ◽  
Xue Lai ◽  
Nan Zheng ◽  
Chenghao Duan ◽  
Zhaojin Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
High Performance ◽  
Alkyl Chain ◽  
Low Energy ◽  
Fused Ring

A Facile Synthesized Polymer Featuring B‐N Covalent Bond and Small Singlet‐Triplet Gap for High‐Performance Organic Solar Cells

2021 ◽  
Vol 60 (16) ◽  
pp. 8813-8817
Author(s):  
Shuting Pang ◽  
Zhiqiang Wang ◽  
Xiyue Yuan ◽  
Langheng Pan ◽  
Wanyuan Deng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Covalent Bond

scholarly journals High performance tandem organic solar cells via a strongly infrared-absorbing narrow bandgap acceptor

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenrong Jia ◽  
Shucheng Qin ◽  
Lei Meng ◽  
Qing Ma ◽  
Indunil Angunawela ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Device Structure ◽  
Narrow Bandgap

AbstractTandem organic solar cells are based on the device structure monolithically connecting two solar cells to broaden overall absorption spectrum and utilize the photon energy more efficiently. Herein, we demonstrate a simple strategy of inserting a double bond between the central core and end groups of the small molecule acceptor Y6 to extend its conjugation length and absorption range. As a result, a new narrow bandgap acceptor BTPV-4F was synthesized with an optical bandgap of 1.21 eV. The single-junction devices based on BTPV-4F as acceptor achieved a power conversion efficiency of over 13.4% with a high short-circuit current density of 28.9 mA cm−2. With adopting BTPV-4F as the rear cell acceptor material, the resulting tandem devices reached a high power conversion efficiency of over 16.4% with good photostability. The results indicate that BTPV-4F is an efficient infrared-absorbing narrow bandgap acceptor and has great potential to be applied into tandem organic solar cells.

Alcohol-soluble fluorene derivate functionalized with pyridyl groups as a high-performance cathode interfacial material in organic solar cells

2021 ◽  
Author(s):  
Lin Lin ◽  
Zeping Huang ◽  
Yuanqi Luo ◽  
Tingen Peng ◽  
Baitian He ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
High Performance ◽  
Fluorene Derivative ◽  
Interfacial Material ◽  
Cathode Interlayer

The synthesis and application as a cathode interlayer in organic photovoltaics of a fluorene derivative with pyridyl functional chains are presented.

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