Critical factors governing vertical phase separation in polymer–PCBM blend films for organic solar cells

2016 ◽  
Vol 4 (40) ◽  
pp. 15522-15535 ◽  
Author(s):  
Min Kim ◽  
Jaewon Lee ◽  
Sae Byeok Jo ◽  
Dong Hun Sin ◽  
Hyomin Ko ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Organic Solar Cells ◽  
Processing Conditions ◽  
Critical Factors ◽  
Systematic Comparison ◽  
Blend Films

This study presents an effective guide to vertical phase separation of polymer–fullerene blends based on systematic comparison of compatibility, crystallization, and processing conditions in observing the vertical morphology.

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

A bromine and chlorine concurrently functionalized end group for benzo[1,2-b:4,5-b′]diselenophene-based non-fluorinated acceptors: a new hybrid strategy to balance the crystallinity and miscibility of blend films for enabling highly efficient polymer solar cells

2020 ◽  
Vol 8 (9) ◽  
pp. 4856-4867 ◽  
Author(s):  
Shi-Sheng Wan ◽  
Xiaopeng Xu ◽  
Zhao Jiang ◽  
Jian Yuan ◽  
Asif Mahmood ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Polymer Solar Cells ◽  
Hybrid Strategy ◽  
Blend Films ◽  
Highly Efficient ◽  
End Group

The hybrid IC functionalized BDSe-2(BrCl):PM7-based PSCs exhibit the impressive PCE of 14.54%, which is the highest value in hybrid IC-functionalized acceptor-based binary organic solar cells.

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

Tuning the morphology of the active layer of organic solar cells by spin 1/2 radicals

2019 ◽  
Vol 43 (35) ◽  
pp. 13998-14008
Author(s):  
Yuancheng Qin ◽  
Manman Li ◽  
Yu Xie ◽  
Xue Li ◽  
Chunming Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Phase Separation ◽  
Active Layer ◽  
Network Structure ◽  
Organic Solar Cells ◽  
Interpenetrating Network ◽  
Donor Acceptor

The morphology of the active layer, the formation of an interpenetrating network structure and the phase separation of donor–acceptor polymers has been improved by spin 1/2 radicals, and enhanced the PCEs of the organic solar cells.

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