Charge Separation in Solar Cells

2017 ◽  
pp. 153-166
Author(s):  
Juan Bisquert
Keyword(s):  
Solar Cells ◽  
Charge Separation

Evidence for Field-Dependent Charge Separation Caused by Mixed Phases in Polymer–Fullerene Organic Solar Cells

2021 ◽  
Vol 12 (7) ◽  
pp. 1847-1853
Author(s):  
Prabodh Dhakal ◽  
Thomas Ferron ◽  
Awwad Alotaibi ◽  
Victor Murcia ◽  
Obaid Alqahtani ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Charge Separation ◽  
Field Dependent

Fullerenecrystallisation as a key driver of charge separation in polymer/fullerene bulk heterojunction solar cells

2012 ◽  
Vol 3 (2) ◽  
pp. 485-492 ◽  
Author(s):  
Fiona C. Jamieson ◽  
Ester Buchaca Domingo ◽  
Thomas McCarthy-Ward ◽  
Martin Heeney ◽  
Natalie Stingelin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Separation ◽  
Bulk Heterojunction ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Key Driver

Thermally assisted charge transfer and charge separation in organic donor–acceptor solar cells

2020 ◽  
Vol 117 (16) ◽  
pp. 163301
Author(s):  
Teng Gao ◽  
Qiuxia Lu ◽  
Wei Qin ◽  
Fanyao Qu ◽  
Shijie Xie
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Charge Separation ◽  
Donor Acceptor

Low Band-Gap Materials for Solar Cells

2021 ◽  
pp. 176-235
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Charge Separation ◽  
Chemical Properties ◽  
Low Energy ◽  
Practical Applications ◽  
Film Forming ◽  
Donor And Acceptor ◽  
Induced Charge

Organic solar cells (OSCs) are discussed at length in terms of its performance leading to the generation of electricity. The key materials required for OSCs are the small organic molecules having donor and acceptor with suitable light absorption and electro-chemical properties of low energy band gap. Various structural scaffolds are highlighted with their structural design leading to film forming in an orderly manner and this morphology of film having a pivotal role in photo-induced charge separation, migration and collection at an electrode. Present day research informs that OSCs involving non fullerene based donors and acceptors are functioning with high photo conversion efficiency [PCE] of >17% and are promising candidates for practical applications.

Insights into Charge Separation and Transport in Ternary Polymer Solar Cells

2018 ◽  
Vol 11 (3) ◽  
pp. 3299-3307 ◽  
Author(s):  
Qicong Li ◽  
Yang Sun ◽  
Xiaodi Xue ◽  
Shizhong Yue ◽  
Kong Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Separation ◽  
Polymer Solar Cells ◽  
Ternary Polymer

scholarly journals Tailored Interface Energetics for Efficient Charge Separation in Metal Oxide-Polymer Solar Cells

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Philipp Ehrenreich ◽  
Arthur Groh ◽  
Heather Goodwin ◽  
Jeldrik Huster ◽  
Felix Deschler ◽  
...  
Keyword(s):  
Solar Cells ◽  
Metal Oxide ◽  
Charge Separation ◽  
Polymer Solar Cells ◽  
Efficient Charge

scholarly journals Long-lived and disorder-free charge transfer states enable endothermic charge separation in efficient non-fullerene organic solar cells

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Ture F. Hinrichsen ◽  
Christopher C. S. Chan ◽  
Chao Ma ◽  
David Paleček ◽  
Alexander Gillett ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Organic Solar Cells ◽  
Charge Separation ◽  
Free Charge ◽  
Charge Generation ◽  
Time Resolved ◽  
Thermodynamic Conditions ◽  
Donor Acceptor ◽  
Interfacial Charge

Abstract Organic solar cells based on non-fullerene acceptors can show high charge generation yields despite near-zero donor–acceptor energy offsets to drive charge separation and overcome the mutual Coulomb attraction between electron and hole. Here, we use time-resolved optical spectroscopy to show that free charges in these systems are generated by thermally activated dissociation of interfacial charge-transfer states that occurs over hundreds of picoseconds at room temperature, three orders of magnitude slower than comparable fullerene-based systems. Upon free electron–hole encounters at later times, both charge-transfer states and emissive excitons are regenerated, thus setting up an equilibrium between excitons, charge-transfer states and free charges. Our results suggest that the formation of long-lived and disorder-free charge-transfer states in these systems enables them to operate closely to quasi-thermodynamic conditions with no requirement for energy offsets to drive interfacial charge separation and achieve suppressed non-radiative recombination.

scholarly journals Perovskite quantum dot solar cells: Mapping interfacial energetics for improving charge separation

Nano Energy ◽  
2020 ◽  
Vol 78 ◽  
pp. 105319
Author(s):  
Chuanxiao Xiao ◽  
Qian Zhao ◽  
Chun-Sheng Jiang ◽  
Yinong Sun ◽  
Mowafak M. Al-Jassim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Charge Separation ◽  
Quantum Dot Solar Cells ◽  
Interfacial Energetics
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