Fluorine substituted thiophene–quinoxalinecopolymer to reduce the HOMO level and increase the dielectric constant for high open-circuit voltage organic solar cells

2013 ◽  
Vol 1 (4) ◽  
pp. 630-637 ◽  
Author(s):  
Yunzhang Lu ◽  
Zhengguo Xiao ◽  
Yongbo Yuan ◽  
Haimei Wu ◽  
Zhongwei An ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Homo Level

scholarly journals A potential naphtho[2,1-b:3,4-b′]dithiophene-based polymer with large open circuit voltage for efficient use in organic solar cells

2015 ◽  
Vol 3 (9) ◽  
pp. 1904-1912 ◽  
Author(s):  
Yu Jin Kim ◽  
Ye Rim Cheon ◽  
Jae-Wan Jang ◽  
Yun-Hi Kim ◽  
Chan Eon Park
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Homo Level

We designed a new copolymer, PNDT-BTN with NDT and alkoxy-naphthalene units. PNDT-BDT showed an effectively lowered HOMO level by inducing non-planarity, resulting in enhanced VOC.

Design of single-porphyrin donors toward high open-circuit voltage for organic solar cells via an energy level gradient-distribution screening strategy of fragments: a theoretical study

2020 ◽  
Vol 22 (7) ◽  
pp. 4015-4022 ◽  
Author(s):  
Li-Na Wu ◽  
Ming-Yue Sui ◽  
Song Xiao ◽  
Yu-Zhong Xie ◽  
Guang-Yan Sun
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Theoretical Study ◽  
Screening Strategy ◽  
Open Circuit ◽  
Gradient Distribution ◽  
Homo Level

The energy level gradient-distribution screening strategy of fragments is an effective way to reduce the HOMO level and increase VOC.

17.25% High Efficiency Ternary Solar Cells with Increased Open-Circuit Voltage by a High HOMO Level Small Molecular Guest Donor in a PM6:Y6 Blend

2021 ◽  
Author(s):  
Wei Tang ◽  
Wenhong Peng ◽  
Mengbing Zhu ◽  
Huanxiang Jiang ◽  
Wenchao Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
The Third ◽  
Homo Level

A small molecular donor TiC12 with asymmetric thieno[3,2-c]isochromene unit is incorporated into the PM6:Y6 system as the third component for constructing ternary organic solar cells (OSCs). It was found that...

Non-halogenated-solvent-processed highly efficient organic solar cells with a record open circuit voltage enabled by noncovalently locked novel polymer donors

2019 ◽  
Vol 7 (48) ◽  
pp. 27394-27402 ◽  
Author(s):  
Hui Guo ◽  
Youdi Zhang ◽  
Lie Chen ◽  
Xunfan Liao ◽  
Qian Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Highly Efficient ◽  
Homo Level

The difluorine and carboxylate substitutions can effectively down-shift the HOMO level of the donors, improved molecular face-on orientation and reduced energy loss.

Importance of interfacial crystallinity to reduce open-circuit voltage loss in organic solar cells

2019 ◽  
Vol 115 (15) ◽  
pp. 153301 ◽  
Author(s):  
Seiichiro Izawa ◽  
Naoto Shintaku ◽  
Mitsuru Kikuchi ◽  
Masahiro Hiramoto
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Voltage Loss

scholarly journals Facile synthesis and photovoltaic applications of a new alkylated bismethano fullerene as electron acceptor for high open circuit voltage solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64724-64730 ◽  
Author(s):  
Derya Baran ◽  
Sule Erten-Ela ◽  
Andreas Kratzer ◽  
Tayebeh Ameri ◽  
Christoph J. Brabec ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Facile Synthesis ◽  
Photovoltaic Applications ◽  
Lumo Level

In this work, a bis-adduct C60 derivative was facilely synthesized using an alkyl solubilizing group. This semiconductor offers a higher LUMO level compared to PCBM, which resulted in a significantly enhanced Voc of 0.73 V in organic solar cells.

Impact of mesoscale order on open-circuit voltage in organic solar cells

2014 ◽  
Vol 14 (4) ◽  
pp. 434-439 ◽  
Author(s):  
Carl Poelking ◽  
Max Tietze ◽  
Chris Elschner ◽  
Selina Olthof ◽  
Dirk Hertel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit
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