scholarly journals 3D Charge Transport Pathway in Organic Solar Cells via Incorporation of Discotic Liquid Crystal Columns

Solar RRL ◽  
2020 ◽  
Vol 4 (5) ◽  
pp. 2070056
Author(s):  
Tong Wang ◽  
Meng-Si Niu ◽  
Jia-Jia Guo ◽  
Kang-Ning Zhang ◽  
Zhen-Chuan Wen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Liquid Crystal ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Transport Pathway ◽  
Discotic Liquid Crystal

3D Charge Transport Pathway in Organic Solar Cells via Incorporation of Discotic Liquid Crystal Columns

Solar RRL ◽  
2020 ◽  
Vol 4 (5) ◽  
pp. 2000047 ◽  
Author(s):  
Tong Wang ◽  
Meng-Si Niu ◽  
Jia-Jia Guo ◽  
Kang-Ning Zhang ◽  
Zhen-Chuan Wen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Liquid Crystal ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Transport Pathway ◽  
Discotic Liquid Crystal

scholarly journals Unraveling the influence of non-fullerene acceptor molecular packing on photovoltaic performance of organic solar cells

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Linglong Ye ◽  
Kangkang Weng ◽  
Jinqiu Xu ◽  
Xiaoyan Du ◽  
Sreelakshmi Chandrabose ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Transport Pathway ◽  
Π Stacking ◽  
Fused Ring ◽  
Efficient Charge ◽  
End Group

AbstractIn non-fullerene organic solar cells, the long-range structure ordering induced by end-group π–π stacking of fused-ring non-fullerene acceptors is considered as the critical factor in realizing efficient charge transport and high power conversion efficiency. Here, we demonstrate that side-chain engineering of non-fullerene acceptors could drive the fused-ring backbone assembly from a π–π stacking mode to an intermixed packing mode, and to a non-stacking mode to refine its solid-state properties. Different from the above-mentioned understanding, we find that close atom contacts in a non-stacking mode can form efficient charge transport pathway through close side atom interactions. The intermixed solid-state packing motif in active layers could enable organic solar cells with superior efficiency and reduced non-radiative recombination loss compared with devices based on molecules with the classic end-group π–π stacking mode. Our observations open a new avenue in material design that endows better photovoltaic performance.

scholarly journals Unraveling the Influence of Non-Fullerene Acceptor Molecular Packing on Phovoltaic Performance of Organic Solar Cells

2020 ◽  
Author(s):  
Yanming Sun ◽  
Linglong Ye ◽  
Kangkang Weng ◽  
Jinqiu Xu ◽  
Xiaoyan Du ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Photovoltaic Performance ◽  
Transport Pathway ◽  
Π Stacking ◽  
Fused Ring ◽  
Efficient Charge ◽  
End Group

Abstract In non-fullerene organic solar cells (OSCs), the long-range structure ordering induced by end group π–π stacking of fused-ring non-fullerene acceptors is considered as the critical factor in realizing efficient charge transport and high power conversion efficiency. Here, we demonstrate that side-chain engineering of non-fullerene acceptors could drive the fused-ring backbone assembly from a π–π stacking mode to an intermixed packing mode, and to a non-stacking mode to refine its solid-state properties. Different from the above-mentioned understanding, we find that close atom contacts in a non-stacking mode can form efficient charge transport pathway through close side atom interactions. The intermixed solid-state packing motif in active layers could enable OSCs with superior efficiency and reduced non-radiative recombination loss compared with devices based on molecules with the classic end-group π–π stacking mode. Our observations provide new insights into the influence of non-fullerene acceptor molecular packing on exciton dissociation, charge transport, and recombination losses, and open a new avenue in material design that endows better photovoltaic performance.

Efficiency improvement in organic solar cells by inserting a discotic liquid crystal

2011 ◽  
Vol 95 (8) ◽  
pp. 2200-2205 ◽  
Author(s):  
Qiao Zheng ◽  
Guojia Fang ◽  
Weibin Bai ◽  
Nanhai Sun ◽  
Pingli Qin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Liquid Crystal ◽  
Organic Solar Cells ◽  
Efficiency Improvement ◽  
Discotic Liquid Crystal

Unified electronic charge transport model for organic solar cells

2013 ◽  
Vol 114 (2) ◽  
pp. 024501 ◽  
Author(s):  
Seyyed Sadegh Mottaghian ◽  
Matt Biesecker ◽  
Khadijeh Bayat ◽  
Mahdi Farrokh Baroughi
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Transport Model ◽  
Electronic Charge

Effects of lateral-chain thiophene fluorination on morphology and charge transport of BDT-T based small molecule donors: A study with multiscale simulations

2021 ◽  
Author(s):  
Chunlin Xu ◽  
Chuang Yao ◽  
Shaohui Zheng
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Building Block ◽  
Multiscale Simulations

Thiophene substituted benzo[1,2-b:4,5-b′]dithiophene (BDT-T) is widely used as the building block of promising donor materials in organic solar cells (OSCs). Fluorination on the lateral-chain thiophenes of BDT-T is a considerable...

Improved charge transport via WSe2-mediated hole transporting layer toward efficient organic solar cells

2018 ◽  
Vol 33 (12) ◽  
pp. 125020
Author(s):  
Donghwan Koo ◽  
Seungon Jung ◽  
Nam Khen Oh ◽  
Yunseong Choi ◽  
Jihyung Seo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Hole Transporting

Employing Pentacene To Balance the Charge Transport in Inverted Organic Solar Cells

2018 ◽  
Vol 122 (30) ◽  
pp. 17110-17117 ◽  
Author(s):  
Changhao Wang ◽  
Chang Li ◽  
Ge Wang ◽  
Chen Wang ◽  
Pengfei Ma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Organic Solar Cells

Optimized Charge Transport Channel Enables Thick-Film All-Small-Molecule Organic Solar Cells

2021 ◽  
Author(s):  
Liyan Yang ◽  
Jinzhao Qin ◽  
Sunsun Li ◽  
Jianqi Zhang ◽  
Yang Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Thick Film ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Transport Channel

Film-depth-dependent crystallinity for light transmission and charge transport in semitransparent organic solar cells

2020 ◽  
Vol 8 (1) ◽  
pp. 401-411 ◽  
Author(s):  
Tong Xiao ◽  
Jiayu Wang ◽  
Shuting Yang ◽  
Yuanwei Zhu ◽  
Dongfan Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Electronic Properties ◽  
Organic Solar Cells ◽  
Light Transmission ◽  
Optical And Electronic Properties

We realized simultaneously optimized optical and electronic properties in semitransparent organic solar cells by tuning the film-depth-dependent crystallinity distribution.

Sign in / Sign up

Export Citation Format

Share Document