A stereoregular β-dicyanodistyrylbenzene (β-DCS)-based conjugated polymer for high-performance organic solar cells with small energy loss and high quantum efficiency

2017 ◽  
Vol 5 (32) ◽  
pp. 16681-16688 ◽  
Author(s):  
Jun-Mo Park ◽  
Dong Won Kim ◽  
Hae Yeon Chung ◽  
Ji Eon Kwon ◽  
Seung Hwa Hong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Quantum Efficiency ◽  
Organic Solar Cells ◽  
Conjugated Polymer ◽  
High Performance ◽  
Small Energy ◽  
High Quantum Efficiency ◽  
High Quantum

We report a new β-dicyanodistyrylbenzene (β-DCS)-based polymer (PBDCS), which enables efficient fullerene and non-fullerene organic solar cells with low Eloss and high EQE.

Indole-based A–DA′D–A type acceptor-based organic solar cells achieve efficiency over 15 % with low energy loss

2020 ◽  
Vol 4 (12) ◽  
pp. 6203-6211
Author(s):  
Yu Chen ◽  
Rui Cao ◽  
Hui Liu ◽  
M. L. Keshtov ◽  
Emmanuel N. Koukaras ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Low Energy ◽  
Charge Generation ◽  
Small Energy ◽  
Efficient Charge

In order to increase the power conversion efficiency (PCE) of organic solar cells, developing high-performance non-fullerene small molecule acceptors is important for efficient charge generation and small energy loss.

High-Performance and Low-Energy Loss Organic Solar Cells with Non-fused Ring Acceptor by Alkyl Chain Engineering

2021 ◽  
pp. 129768
Author(s):  
Dou Luo ◽  
Xue Lai ◽  
Nan Zheng ◽  
Chenghao Duan ◽  
Zhaojin Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
High Performance ◽  
Alkyl Chain ◽  
Low Energy ◽  
Fused Ring

High quantum efficiency InGaN/GaN multiple quantum well solar cells with spectral response extending out to 520 nm

2011 ◽  
Vol 98 (20) ◽  
pp. 201107 ◽  
Author(s):  
R. M. Farrell ◽  
C. J. Neufeld ◽  
S. C. Cruz ◽  
J. R. Lang ◽  
M. Iza ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Well ◽  
Quantum Efficiency ◽  
Spectral Response ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
High Quantum Efficiency ◽  
High Quantum

Highly efficient halogen-free solvent processed small-molecule organic solar cells enabled by material design and device engineering

2017 ◽  
Vol 10 (8) ◽  
pp. 1739-1745 ◽  
Author(s):  
Jiahui Wan ◽  
Xiaopeng Xu ◽  
Guangjun Zhang ◽  
Ying Li ◽  
Kui Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Material Design ◽  
Small Energy ◽  
Highly Efficient ◽  
Device Engineering ◽  
Halogen Free

Naphtho[1,2-c:5,6-c']bis[1,2,5]thiadiazole-based small molecules have been synthesized for organic solar cells. The optimized devices processed by a halogen-free solvent of CS2 exhibited a PCE of 11.53% with a small energy loss of 0.57 eV.

scholarly journals Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells

2021 ◽  
Author(s):  
Yanan Shi ◽  
Yilin Chang ◽  
Kun Lu ◽  
Zhihao Chen ◽  
Jianqi Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
High Performance ◽  
Reorganization Energy ◽  
Photoelectric Conversion ◽  
Exciton Lifetime ◽  
Reorganization Energies ◽  
Vibration Coupling ◽  
The Relationship

Abstract Minimizing the energy loss is of critical importance in the pursuit of attaining high-performance organic solar cells (OSCs). Interestingly, electron-vibration coupling (namely reorganization energy) plays a crucial role in the photo-electric conversion processes. However, a molecular understanding of the relationship between the reorganization energy and the energy loss has rarely been studied. Here, two new acceptors Qx-1 and Qx-2 with quinoxaline (Qx)-containing fused core were designed and synthesized. The results indicate that the reorganization energies of these two acceptors during the photoelectric conversion processes are substantially smaller than the conventional Y6 acceptor, which is beneficial for improving the exciton lifetime and diffusion length, promoting charge transport and reducing the energy loss originating from exciton dissociation and non-radiative recombination. As a result, an outstanding power conversion efficiency (PCE) of 18.2% with high Voc above 0.93 V in the PM6:Qx-2 blend, accompanying a significantly reduced energy loss of 0.48 eV. To the best of our knowledge, the obtained energy loss is the smallest for the binary OSCs with PCEs over 16% reported to date. This work underlines the importance of the reorganization energy in achieving small energy loss in organic active materials and paves a new way to obtain high-performance OSCs.

Highly ordered bimolecular crystalline blends for low-noise and high-detectivity polymeric photodiodes

2016 ◽  
Vol 4 (39) ◽  
pp. 9197-9202 ◽  
Author(s):  
Kyu Min Sim ◽  
Seongwon Yoon ◽  
Dae Sung Chung
Keyword(s):  
Quantum Efficiency ◽  
High Performance ◽  
Low Noise ◽  
High Quantum Efficiency ◽  
Noise Current ◽  
High Quantum

Suppressing noise current while maintaining high quantum efficiency is essential for realizing high-performance photodiodes.

A wide-bandgap π-conjugated polymer for high-performance ternary organic solar cells with an efficiency of 17.40%

Nano Energy ◽  
2021 ◽  
pp. 106323
Author(s):  
Thavamani Gokulnath ◽  
Jungmin Choi ◽  
Ho-Yeol Park ◽  
Kyungmin Sung ◽  
Yeongju Do ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Conjugated Polymer ◽  
High Performance ◽  
Wide Bandgap

A self-assembled 3D Pt/TiO2 architecture for high-performance photocatalytic hydrogen production

Nanoscale ◽  
2015 ◽  
Vol 7 (5) ◽  
pp. 1610-1615 ◽  
Author(s):  
Haiyan Li ◽  
Hongwen Yu ◽  
Lei Sun ◽  
Jiali Zhai ◽  
Xuerong Han
Keyword(s):  
Hydrogen Production ◽  
Quantum Efficiency ◽  
High Performance ◽  
High Quantum Efficiency ◽  
Photocatalytic Hydrogen Production ◽  
High Quantum ◽  
Self Assembled

A 3D Pt/TiO2 architecture assembled from 1D nanowires has been designed which exhibits a high quantum efficiency (34%) for photocatalytic hydrogen production from water.

scholarly journals High Quantum Efficiency and Broadband Photodetector Based on Graphene/Silicon Nanometer Truncated Cone Arrays

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6146
Author(s):  
Jijie Zhao ◽  
Huan Liu ◽  
Lier Deng ◽  
Minyu Bai ◽  
Fei Xie ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Performance ◽  
Light Trapping ◽  
Surface Recombination ◽  
Response Speed ◽  
Transparent Electrode ◽  
High Quantum Efficiency ◽  
High Quantum ◽  
Truncated Cone ◽  
Silicon Based

Light loss is one of the main factors affecting the quantum efficiency of photodetectors. Many researchers have attempted to use various methods to improve the quantum efficiency of silicon-based photodetectors. Herein, we designed highly anti-reflective silicon nanometer truncated cone arrays (Si NTCAs) as a light-trapping layer in combination with graphene to construct a high-performance graphene/Si NTCAs photodetector. This heterojunction structure overcomes the weak light absorption and severe surface recombination in traditional silicon-based photodetectors. At the same time, graphene can be used both as a broad-spectrum absorption layer and as a transparent electrode to improve the response speed of heterojunction devices. Due to these two mechanisms, this photodetector had a high quantum efficiency of 97% at a wavelength of 780 nm and a short rise/fall time of 60/105µs. This device design promotes the development of silicon-based photodetectors and provides new possibilities for integrated photoelectric systems.

Energy level modulation of non-fullerene acceptors enables efficient organic solar cells with small energy loss

2018 ◽  
Vol 6 (6) ◽  
pp. 2468-2475 ◽  
Author(s):  
Qiaoshi An ◽  
Wei Gao ◽  
Fujun Zhang ◽  
Jian Wang ◽  
Miao Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
Small Energy

BDTThIT-M based OSCs achieved a high PCE of 12.12% with a small energy loss of ∼0.588 eV.

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