Numerical Study on Open-Circuit Voltage of Single Layer Organic Solar Cells with Schottky Contacts: Effects of Molecular Energy Levels, Temperature and Thickness

A 3D-shaped SF-HR was designed and synthesized for use in non-fullerene organic solar cells. Owing to the aligned energy levels, the P3HT:SF-HR system exhibited a high efficiency of 4.01% with good thermal stability and photostability.

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Open-circuit voltage of organic solar cells: Effect of energetically and spatially nonuniform distribution of molecular energy levels in the photoactive layer

Nano Energy ◽

10.1016/j.nanoen.2020.105336 ◽

2020 ◽

Vol 78 ◽

pp. 105336

Author(s):

Hansol Lee ◽

Jungho Mun ◽

Nguyen Ngan Nguyen ◽

Junsuk Rho ◽

Kilwon Cho

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Open Circuit Voltage ◽

Energy Levels ◽

Open Circuit ◽

Nonuniform Distribution ◽

Photoactive Layer

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High open circuit voltage organic solar cells based upon fullerene free bulk heterojunction active layers

Canadian Journal of Chemistry ◽

10.1139/cjc-2014-0099 ◽

2014 ◽

Vol 92 (10) ◽

pp. 932-939 ◽

Cited By ~ 4

Author(s):

Ala’a F. Eftaiha ◽

Jon-Paul Sun ◽

Arthur D. Hendsbee ◽

Casper Macaulay ◽

Ian G. Hill ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Open Circuit Voltage ◽

Field Effect Transistors ◽

Bulk Heterojunction ◽

Energy Levels ◽

Open Circuit ◽

Frontier Molecular Orbital ◽

Orbital Energy ◽

High Electron

We have recently reported on a small organic molecule containing a bithiophene core with end-capping phthalimide units (PthTh2Pth) that exhibited a H-aggregation tendency in the solid state and high electron mobility in organic field effect transistors. In this contribution, we have studied both the physical and electrical properties of poly(3-hexylthiophene) (P3HT) and PthTh2Pth thin films by measuring the optical absorption, Frontier molecular orbital energy levels, photoluminescence quenching, thermal properties, and photovoltaic response. Our results have provided a useful insight into the use of PthTh2Pth as an electron acceptor material for organic photovoltaic applications. In comparison with high-performance, fullerene-based, solution-processed bulk heterojunction solar cells reported in the literature, a relatively high open circuit voltage (∼0.94 V) was obtained for various donor–acceptor blend ratios. These results highlight the potential for PthTh2Pth to act as an alternative to fullerenes as acceptors in organic solar cell devices.

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

Applied Physics Letters ◽

10.1063/1.5114670 ◽

2019 ◽

Vol 115 (15) ◽

pp. 153301 ◽

Cited By ~ 5

Author(s):

Seiichiro Izawa ◽

Naoto Shintaku ◽

Mitsuru Kikuchi ◽

Masahiro Hiramoto

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Open Circuit Voltage ◽

Open Circuit ◽

Voltage Loss

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

RSC Advances ◽

10.1039/c5ra10089e ◽

2015 ◽

Vol 5 (79) ◽

pp. 64724-64730 ◽

Cited By ~ 15

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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