Patching defects in the active layer of large-area organic solar cells

2018 ◽  
Vol 6 (14) ◽  
pp. 5817-5824 ◽  
Author(s):  
Lin Mao ◽  
Lulu Sun ◽  
Bangwu Luo ◽  
Youyu Jiang ◽  
Yinhua Zhou
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Polar Solvent ◽  
Large Area ◽  
Insulating Polymers

Polar-solvent-soluble, electrical-insulating polymers were used to patch the defects inside the active layer via a Maobi coating to enhance the device yield for large-area organic solar cells.

scholarly journals Flexible, Large-Area Organic Solar Cells With Improved Performance Through Incorporation of CoFe2O4 Nanoparticles in the Active Layer

2019 ◽  
Vol 22 (6) ◽  
Author(s):  
Maurício de Sousa Pereira ◽  
Francisco Anderson de Sousa Lima ◽  
Rodrigo Queiros de Almeida ◽  
Juliana Luiza da Silva Martins ◽  
Diego Bagnis ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Large Area ◽  
Cofe2o4 Nanoparticles ◽  
Improved Performance

A blade-coated highly efficient thick active layer for non-fullerene organic solar cells

2019 ◽  
Vol 7 (39) ◽  
pp. 22265-22273 ◽  
Author(s):  
Lin Zhang ◽  
Heng Zhao ◽  
Baojun Lin ◽  
Jian Yuan ◽  
Xianbin Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Thick Film ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Molecular Packing ◽  
Large Area ◽  
Highly Efficient ◽  
Blade Coating

Highly efficient large-area thick-film organic solar cells were fabricated by blade-coating with finely controlling the molecular packing.

Achieving Efficient Organic Solar Cells via Synergistically Doping Active Layer and Interface by A Conjugated Macrocycle

2021 ◽  
Author(s):  
Yan Wang ◽  
Yi Zhang ◽  
Tong Shan ◽  
Qingyun Wei ◽  
Zhenchuang Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Device Optimization ◽  
Hole Transporting

To facilitate the device optimization of organic solar cells, a conjugated macrocycle namely cyanostar is firstly utilized to simultaneously modify the active layer and hole transporting layer. Benefiting from the...

Vertically Optimized Phase Separation with Improved Exciton Diffusion Enables High-Efficiency Organic Solar Cells with Thick Active Layers

2021 ◽  
Author(s):  
Yanming Sun ◽  
Yunhao Cai ◽  
Qian Li ◽  
Guanyu Lu ◽  
Hwa Sook Ryu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Active Layer ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Diffusion Length ◽  
Active Layer Thickness ◽  
Exciton Diffusion ◽  
Exciton Diffusion Length ◽  
Active Layers

Abstract The development of high-performance organic solar cells (OSCs) with thick active layers is of crucial importance for the roll-to-roll printing of large-area solar panels. Unfortunately, increasing the active layer thickness usually results in a significant reduction in efficiency. Herein, we fabricated efficient thick-film OSCs with an active layer consisting of one polymer donor and two non-fullerene acceptors. The two acceptors were found to possess enlarged exciton diffusion length in the mixed phase, which is beneficial to exciton generation and dissociation. Additionally, layer by layer approach was employed to optimize the vertical phase separation. Benefiting from the synergetic effects of enlarged exciton diffusion length and graded vertical phase separation, a record high efficiency of 17.31% (certified value of 16.9%) was obtained for the 300 nm-thick OSC, with an unprecedented short-circuit current density of 28.36 mA cm−2, and a high fill factor of 73.0%. Moreover, the device with an active layer thickness of 500 nm also shows a record efficiency of 15.21%. This work provides new insights into the fabrication of high-efficiency OSCs with thick active layers.

Active layer thickness effect on the recombination process of PCDTBT:PC71BM organic solar cells

2013 ◽  
Vol 14 (1) ◽  
pp. 74-79 ◽  
Author(s):  
Gon Namkoong ◽  
Jaemin Kong ◽  
Matthew Samson ◽  
In-Wook Hwang ◽  
Kwanghee Lee
Keyword(s):  
Solar Cells ◽  
Layer Thickness ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Recombination Process ◽  
Thickness Effect ◽  
Active Layer Thickness

scholarly journals Effects of Ag Nanocubes with Different Corner Shape on the Absorption Enhancement in Organic Solar Cells

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Feng Shan ◽  
Tong Zhang ◽  
Sheng-Qing Zhu
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Field Enhancement ◽  
Localized Surface Plasmon ◽  
Absorption Enhancement ◽  
Absorption Performance ◽  
Different Shapes ◽  
Ag Ncs ◽  
Metallic Region

The effects of corner shape of silver (Ag) nanocubes (NCs) on optical absorptions of organic solar cells (OSCs) are theoretically investigated by finite element method (FEM) calculations. The absorption of sun light in the active layer is calculated. Significant absorption enhancements have been demonstrated in metallic region with different shapes of Ag NCs, among them corner radius (R) is zero result in the best light absorption performance of up to 55% enhancement with respect to bare OSCs. The origins of increased absorption are believed to be the effects of the huge electric field enhancement and increased scattering upon the excitation of localized surface plasmon resonance (LSPR). Apart from usingR=0, we show thatR=3, 6, and 11.29 of Ag NCs in metallic region of active layer may also result in the maximum comparable absorption enhancement of 49%, 41%, and 28%, respectively. In addition, a significant effect of the period of NCs is observed.

Influence of the acceptor crystallinity on the open-circuit voltage in PTB7-Th: ITIC organic solar cells

2019 ◽  
Vol 7 (47) ◽  
pp. 14861-14866 ◽  
Author(s):  
Xiaojing Wang ◽  
Yidong Yang ◽  
Zhicai He ◽  
Hongbin Wu ◽  
Yong Cao
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Analytical Techniques ◽  
Open Circuit

The influence of the solution components on the VOC in PTB7-Th: ITIC organic solar cells was studied by several analytical techniques (AFM, GIWAXS, EL), focusing on an inside understanding to the mechanism of the active layer morphology on the VOC.

scholarly journals Flexible ITO-Free Roll-Processed Large-Area Nonfullerene Organic Solar Cells Based on P3HT:O-IDTBR

2020 ◽  
Vol 14 (3) ◽  
Author(s):  
Marcial Fernández Castro ◽  
Eva Mazzolini ◽  
Roar R. Sondergaard ◽  
Moises Espindola-Rodriguez ◽  
Jens Wenzel Andreasen
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Large Area
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