High-efficiency ternary nonfullerene organic solar cells fabricated with a near infrared acceptor enhancing exciton utilization and extending absorption

2019 ◽  
Vol 7 (34) ◽  
pp. 10498-10506 ◽  
Author(s):  
Bei Wang ◽  
Yingying Fu ◽  
Qingqing Yang ◽  
Jiang Wu ◽  
He Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Near Infrared ◽  
High Efficiency ◽  
Nonfullerene Acceptor

Incorporating an infrared nonfullerene acceptor O6T-4F enhances the exciton utilization and extends the absorption, leading to an increased PCE of organic solar cells.

scholarly journals A New Nonfullerene Acceptor with Near Infrared Absorption for High Performance Ternary-Blend Organic Solar Cells with Efficiency over 13%

2018 ◽  
Vol 5 (6) ◽  
pp. 1800307 ◽  
Author(s):  
Huan-Huan Gao ◽  
Yanna Sun ◽  
Xiangjian Wan ◽  
Xin Ke ◽  
Huanran Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Infrared Absorption ◽  
Organic Solar Cells ◽  
High Performance ◽  
Near Infrared ◽  
Ternary Blend ◽  
Nonfullerene Acceptor

ITC‐2Cl: A Versatile Middle‐Bandgap Nonfullerene Acceptor for High‐Efficiency Panchromatic Ternary Organic Solar Cells

Solar RRL ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 1900377 ◽  
Author(s):  
Cenqi Yan ◽  
Tao Liu ◽  
Yuzhong Chen ◽  
Ruijie Ma ◽  
Hua Tang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Nonfullerene Acceptor

Designing of near-infrared sensitive asymmetric small molecular donors for high-efficiency organic solar cells

2020 ◽  
Vol 19 (08) ◽  
pp. 2050034 ◽  
Author(s):  
Muhammad Yasir Mehboob ◽  
Muhammad Usman Khan ◽  
Riaz Hussain ◽  
Rafia Fatima ◽  
Zobia Irshad ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dipole Moment ◽  
Organic Solar Cells ◽  
Near Infrared ◽  
High Efficiency ◽  
Energy Gap ◽  
Transition Density ◽  
Open Circuit ◽  
Excitation Energies ◽  
Highly Efficient

Herein, we have designed four small molecular donors (SMDs) with Donor–Acceptor–Acceptor (D–Á–A) backbone having different acceptor units for highly efficient organic solar cells (OSCs). The specific molecular modeling has been made by replacing the additional acceptor unit (A) of recently synthesized TPA-DAA-MDN molecule (R) by employing different highly efficient acceptor units in order to improve the photovoltaic performances of the molecules. A theoretical approach (DFT and TD-DFT) has been applied to investigate the photophysical, opto-electronic and photovoltaic parameters of the designed molecules (DAA1–DAA4) and compared with the reference molecule (R). The red-shifting absorption of SMDs is the most important factor for highly efficient OSCs. Our all formulated molecules showed a red shifted absorption spectrum and also exhibit near IR sensitivity. Acceptor unit modification of R molecule causes reduction in HOMO-LUMO energy gap; therefore, all designed molecules offer better opto-electronic properties as compared to R molecule. A variety of certain critical factors essential for efficient SMDs like frontier molecular orbitals (FMOs), absorption maxima, dipole moment, exciton binding energy along with transition density matrix, excitation energy, open circuit voltages and charge mobilities of (DAA1–DAA4) and R have also been investigated. Generally, low values of reorganizational energy (hole and electron) offer high charge mobility and our all designed molecules are enriched in this aspect. High open circuit voltage values, low excitation energies, large dipole moment values indicate that our designed SMDs are suitable candidates for high-efficiency OSCs. Furthermore, conceptualized molecules are superior and thus are suggested to experimentalist for out-looking future progresses of highly efficient OSCs devices.

scholarly journals Rational design of near-infrared dyes based on boron dipyrromethene derivatives for application in organic solar cells

RSC Advances ◽  
2018 ◽  
Vol 8 (59) ◽  
pp. 33659-33665 ◽  
Author(s):  
Man Zhang ◽  
Ruifa Jin
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Organic Solar Cells ◽  
Rational Design ◽  
Near Infrared ◽  
High Efficiency ◽  
Boron Dipyrromethene ◽  
Active Donor

A series of novel pyrrolopyrrole boron dipyrromethene derivatives have been designed as high-efficiency red/near-infrared-active donor materials and charge transport materials in OSC applications.

scholarly journals Fine‐Tuning Aggregation of Nonfullerene Acceptor Enables High‐Efficiency Organic Solar Cells

2021 ◽  
pp. 2100055
Author(s):  
Yuanpeng Xie ◽  
Linglong Ye ◽  
Yunhao Cai ◽  
Xue Zhang ◽  
Jinqiu Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Fine Tuning ◽  
Nonfullerene Acceptor

An Unfused-Core-Based Nonfullerene Acceptor Enables High-Efficiency Organic Solar Cells with Excellent Morphological Stability at High Temperatures

2017 ◽  
Vol 30 (6) ◽  
pp. 1705208 ◽  
Author(s):  
Shuixing Li ◽  
Lingling Zhan ◽  
Feng Liu ◽  
Jie Ren ◽  
Minmin Shi ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Temperatures ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Morphological Stability ◽  
Nonfullerene Acceptor

Fused Hexacyclic Nonfullerene Acceptor with Strong Near-Infrared Absorption for Semitransparent Organic Solar Cells with 9.77% Efficiency

2017 ◽  
Vol 29 (31) ◽  
pp. 1701308 ◽  
Author(s):  
Wei Wang ◽  
Cenqi Yan ◽  
Tsz-Ki Lau ◽  
Jiayu Wang ◽  
Kuan Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Infrared Absorption ◽  
Organic Solar Cells ◽  
Near Infrared ◽  
Nonfullerene Acceptor
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