Unravelling the role of electron–hole pair spin in exciton dissociation in squaraine-based organic solar cells by magneto-photocurrent measurements

2018 ◽  
Vol 6 (3) ◽  
pp. 482-490 ◽  
Author(s):  
M. Klein ◽  
S. Majumdar ◽  
P. Zassowski ◽  
W. Stampor
Keyword(s):  
Solar Cells ◽  
Magnetic Fields ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Exciton Dissociation ◽  
Electron Hole ◽  
Photocurrent Generation ◽  
Wide Range ◽  
Electron Hole Pair

A study of photocurrent in SQ based solar cells, using a wide range of magnetic fields and temperatures, reveals that depending on the electron acceptor content, the photocurrent generation is limited by dissociation/recombination of e–h pairs or CT states.

scholarly journals The role of dipole moment in two fused-ring electron acceptor and one polymer donor based ternary organic solar cells

2020 ◽  
Vol 4 (5) ◽  
pp. 1507-1518 ◽  
Author(s):  
Xunfan Liao ◽  
Yongjie Cui ◽  
Xueliang Shi ◽  
Zhaoyang Yao ◽  
Heng Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dipole Moment ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Working Mechanism ◽  
Fused Ring

The dipole moment of FREAs’ terminals has been unveiled as an important factor and its working mechanism has been thoroughly investigated. Our results demonstrate that the dipole moment should also be taken into account in designing ternary OSCs.

Optimizing binding energy and electron-hole pair binding distance for efficient organic solar cells with low voltage loss

Solar Energy ◽  
2021 ◽  
Vol 230 ◽  
pp. 628-634
Author(s):  
Tingyao Huang ◽  
Yiming Bai ◽  
Jun Wang ◽  
Fuzhi Wang ◽  
Meilin Dai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Binding Energy ◽  
Organic Solar Cells ◽  
Low Voltage ◽  
Hole Pair ◽  
Electron Hole ◽  
Voltage Loss ◽  
Electron Hole Pair ◽  
Binding Distance

Asymmetric and Halogenated Fused‐Ring Electron Acceptor for Efficient Organic Solar Cells

2021 ◽  
pp. 2102189
Author(s):  
Jinlong Cai ◽  
Xue Zhang ◽  
Chuanhang Guo ◽  
Yuan Zhuang ◽  
Liang Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Fused Ring

An Electron Acceptor Analogue for Lowering Trap Density in Organic Solar Cells

2021 ◽  
pp. 2008134
Author(s):  
Yihang Zhang ◽  
Guilong Cai ◽  
Yawen Li ◽  
Zhenzhen Zhang ◽  
Tengfei Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Trap Density

Unraveling the Temperature Dependence of Exciton Dissociation and Free Charge Generation in Nonfullerene Organic Solar Cells

Solar RRL ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 2000789
Author(s):  
Chao Ma ◽  
Christopher C. S. Chan ◽  
Xinhui Zou ◽  
Han Yu ◽  
Jianquan Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Temperature Dependence ◽  
Organic Solar Cells ◽  
Free Charge ◽  
Exciton Dissociation ◽  
Charge Generation

scholarly journals Single particle dual plasmonic effect for efficient organic solar cells

2021 ◽  
Author(s):  
Adi Prasetio ◽  
Soyeon Kim ◽  
Muhammad Jahandar ◽  
Dong Chan Lim
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Light Absorption ◽  
Resonance Effect ◽  
Localized Surface Plasmon ◽  
Main Role ◽  
Charge Generation ◽  
One Pot ◽  
Wide Range ◽  
Light Reflectance

AbstractIncorporating localized surface plasmon resonance (LSPR) into organic solar cells (OSCs) is a popular method for improving the power conversion efficiency (PCE) by introducing better light absorption. In this work, we designed a one-pot synthesis of Ag@SiO2@AuNPs dual plasmons and observed an immense increase in light absorption over a wide range of wavelengths. Ag@SiO2 plays the main role in enhancing light absorption near the ultraviolet band. The silica shell can also further enhance the LSP resonance effect and prevent recombination on the surface of AgNPs. The AuNPs on the Ag@SiO2 shell exhibited strong broad visible-light absorption due to LSP resonance and decreased light reflectance. By utilizing Ag@SiO2@AuNPs, we could enhance the light absorption and photoinduced charge generation, thereby increasing the device PCE to 8.57% and Jsc to 17.67 mA cm−2, which can be attributed to the enhanced optical properties. Meanwhile, devices without LSPR nanoparticles and Ag@SiO2 LSPR only showed PCEs of 7.36% and 8.18%, respectively.

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.

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