Systematically Controlling Acceptor Fluorination Optimizes Hierarchical Morphology, Vertical Phase Separation, and Efficiency in Non‐Fullerene Organic Solar Cells

2021 ◽  
pp. 2102172
Author(s):  
Xiaohua Zhang ◽  
Guoping Li ◽  
Subhrangsu Mukherjee ◽  
Wei Huang ◽  
Ding Zheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Organic Solar Cells ◽  
Hierarchical Morphology

Additive-induced Miscibility Regulation and Hierarchical Morphology Enables 17.5% Binary Organic Solar Cells

2021 ◽  
Author(s):  
Jie Lv ◽  
Hua Tang ◽  
Jiaming Huang ◽  
Cenqi Yan ◽  
Kuan Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Power Conversion ◽  
Charge Trapping ◽  
Free Charge ◽  
Charge Generation ◽  
Low Charge ◽  
Hierarchical Morphology

Due to the barrierless free charge generation, low charge trapping, and high charge mobilities, the PM6:Y6 organic solar cell (OSC) achieves excellent power conversion efficiency (PCE) of 15.7%. However, the...

Rational compatibility in ternary matrix enables all-small-molecule organic solar cells with over 16% efficiency

2021 ◽  
Author(s):  
Mengyun Jiang ◽  
Hairui Bai ◽  
Hongfu Zhi ◽  
Lu Yan ◽  
Han Young Woo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Charge Generation ◽  
Molecular Arrangement ◽  
Efficient Charge

How to manipulate the phase separation and molecular arrangement to meet the need of efficient charge generation and extraction remains as the long-standing challenge in all-small-molecule organic solar cells (ASM-OSCs)....

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.

Composition-dependent phase separation of P3HT:PCBM composites for high performance organic solar cells

2010 ◽  
Vol 11 (5) ◽  
pp. 933-937 ◽  
Author(s):  
Woon-Hyuk Baek ◽  
Tae-Sik Yoon ◽  
Hyun Ho Lee ◽  
Yong-Sang Kim
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Organic Solar Cells ◽  
High Performance

Vertical Phase Separation for Highly Efficient Organic Solar Cells Incorporating Conjugated-Polyelectrolytes

2018 ◽  
Vol 6 (3) ◽  
pp. 1801396 ◽  
Author(s):  
Yong Woon Han ◽  
Jun Young Choi ◽  
Ye Jin Lee ◽  
Eui Jin Ko ◽  
Min Hee Choi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Organic Solar Cells ◽  
Conjugated Polyelectrolytes ◽  
Highly Efficient

Elucidation of Donor:Acceptor Phase Separation in Nonfullerene Organic Solar Cells and Its Implications on Device Performance and Charge Carrier Mobility

2019 ◽  
Vol 2 (10) ◽  
pp. 7535-7545 ◽  
Author(s):  
Sebastian F. Hoefler ◽  
Georg Haberfehlner ◽  
Thomas Rath ◽  
Andreas Keilbach ◽  
Mathias A. Hobisch ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Charge Carrier ◽  
Organic Solar Cells ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Device Performance

Critical Role of Vertical Phase Separation in Small-Molecule Organic Solar Cells

2018 ◽  
Vol 10 (15) ◽  
pp. 12913-12920 ◽  
Author(s):  
Jin Fang ◽  
Dan Deng ◽  
Zaiyu Wang ◽  
Muhammad Abdullah Adil ◽  
Tong Xiao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Critical Role

13.2% Efficiency of Organic Solar Cells by Controlling Interfacial Resistance Resulting from Well-Distributed Vertical Phase Separation

2020 ◽  
Vol 3 (4) ◽  
pp. 3745-3754
Author(s):  
Hee Seon Park ◽  
Yong Woon Han ◽  
Hyoung Seok Lee ◽  
Sung Jae Jeon ◽  
Doo Kyung Moon
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Organic Solar Cells ◽  
Interfacial Resistance

scholarly journals Miscibility‐Controlled Phase Separation in Double‐Cable Conjugated Polymers for Single‐Component Organic Solar Cells with Efficiencies over 8 %

2020 ◽  
Vol 132 (48) ◽  
pp. 21867-21876
Author(s):  
Xudong Jiang ◽  
Jinjin Yang ◽  
Safakath Karuthedath ◽  
Junyu Li ◽  
Wenbin Lai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Conjugated Polymers ◽  
Organic Solar Cells ◽  
Single Component
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