Balancing the pre-aggregation and crystallization kinetics enables high efficiency slot-die coated organic solar cells with reduced non-radiative recombination losses

2020 ◽  
Vol 13 (8) ◽  
pp. 2467-2479 ◽  
Author(s):  
Baojun Lin ◽  
Xiaobo Zhou ◽  
Heng Zhao ◽  
Jian Yuan ◽  
Ke Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystallization Kinetics ◽  
Organic Solar Cells ◽  
Radiative Recombination ◽  
High Efficiency ◽  
Highly Efficient ◽  
Slot Die

Highly efficient slot-die coated organic solar cells are fabricated by balancing the pre-aggregation and crystallization kinetics.

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.

A feasible random copolymer approach for high-efficiency polymeric photovoltaic cells

2016 ◽  
Vol 4 (29) ◽  
pp. 11439-11445 ◽  
Author(s):  
You-Sun Lee ◽  
Ji Young Lee ◽  
Su-Mi Bang ◽  
Bogyu Lim ◽  
Jaechol Lee ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Donor ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Intramolecular Interaction ◽  
Photovoltaic Cells ◽  
Random Copolymer ◽  
Random Copolymers ◽  
Highly Efficient

Conjugated random copolymers with non-covalent intramolecular interaction are synthesized and used as electron-donor materials for highly efficient organic solar cells.

High-efficiency organic solar cells with low non-radiative recombination loss and low energetic disorder

2020 ◽  
Vol 14 (5) ◽  
pp. 300-305 ◽  
Author(s):  
Sha Liu ◽  
Jun Yuan ◽  
Wanyuan Deng ◽  
Mei Luo ◽  
Yuan Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Radiative Recombination ◽  
High Efficiency ◽  
Recombination Loss ◽  
Energetic Disorder

High Throughput Screening of Highly Efficient Non-fullerene Acceptor based Organic Solar Cells Assisted by a Multi-Dataset Scientific Robot

2019 ◽  
Author(s):  
Enrique Pascual-San-José ◽  
Xabier Rodríguez-Martínez ◽  
Fei Zhuping ◽  
Martin Heeney ◽  
Roger Guimerà-Manrique ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Throughput ◽  
Organic Solar Cells ◽  
High Throughput Screening ◽  
Highly Efficient

High‐Efficiency Nonfullerene Organic Solar Cells Enabled by Atomic Layer Deposited Zirconium‐Doped Zinc Oxide

Solar RRL ◽  
2020 ◽  
Vol 4 (10) ◽  
pp. 2000241
Author(s):  
Geedhika K. Poduval ◽  
Leiping Duan ◽  
Md. Anower Hossain ◽  
Borong Sang ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Atomic Layer

scholarly journals Organic Solar Cells: High‐Efficiency Organic Photovoltaics using Eutectic Acceptor Fibrils to Achieve Current Amplification (Adv. Mater. 18/2021)

2021 ◽  
Vol 33 (18) ◽  
pp. 2170142
Author(s):  
Ming Zhang ◽  
Lei Zhu ◽  
Tianyu Hao ◽  
Guanqing Zhou ◽  
Chaoqun Qiu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Current Amplification

Stretchable ITO‐Free Organic Solar Cells with Intrinsic Anti‐Reflection Substrate for High‐Efficiency Outdoor and Indoor Energy Harvesting

2021 ◽  
Vol 31 (16) ◽  
pp. 2010172
Author(s):  
Jiaming Huang ◽  
Zhiwei Ren ◽  
Yaokang Zhang ◽  
Kuan Liu ◽  
Hengkai Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Harvesting ◽  
Organic Solar Cells ◽  
High Efficiency
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