scholarly journals Artificial light-harvesting n-type porphyrin for panchromatic organic photovoltaic devices

2017 ◽  
Vol 8 (7) ◽  
pp. 5095-5100 ◽  
Author(s):  
Wisnu Tantyo Hadmojo ◽  
Dajeong Yim ◽  
Havid Aqoma ◽  
Du Yeol Ryu ◽  
Tae Joo Shin ◽  
...  
Keyword(s):  
Energy Loss ◽  
Light Harvesting ◽  
Photovoltaic Performance ◽  
Low Energy ◽  
Organic Photovoltaic ◽  
Artificial Light ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Low Bandgap ◽  
Porphyrin Derivative

We developed a novel NIR-harvesting n-type porphyrin derivative, PDI–PZn–PDI, that shows a low bandgap of 1.27 eV. Panchromatic absorption was extended to the NIR area with a significantly low energy loss of 0.54 eV which led to promising photovoltaic performance.

Poly(2,3-dihexylthieno[3,4-b]pyrazine-alt-2,3-dihexylquinoxaline): Processible, Low-Bandgap, Ambipolar-Acceptor Frameworks via Direct Arylation Polymerization

Synlett ◽  
2018 ◽  
Vol 29 (19) ◽  
pp. 2542-2546 ◽  
Author(s):  
Seth Rasmussen ◽  
Trent Anderson ◽  
Evan Culver ◽  
Furqan Almyahi ◽  
Paul Dastoor
Keyword(s):  
Cross Coupling ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
High Solubility ◽  
Direct Arylation ◽  
Low Bandgap ◽  
Direct Arylation Polymerization

The synthesis of a new dialkyl-functionalized quinoxaline ­acceptor, 5,8-dibromo-2,3-dihexylquinoxaline, is reported, along with its cross-coupling with 2,3-dihexylthieno[3,4-b]pyrazine via direct arylation polymerization. The resulting ambipolar-acceptor polymer ­poly(2,3-dihexylthieno[3,4-b]pyrazine-alt-2,3-dihexylquinoxaline) exhib­its a low bandgap of 1.07 eV and high solubility. The results of initial organic photovoltaic devices are also reported.

scholarly journals Correlative Spectrum Imaging of Organic Photovoltaic Devices using Energy Dispersive X-ray and Electron Energy-Loss Spectroscopy

2013 ◽  
Vol 19 (S2) ◽  
pp. 1936-1937
Author(s):  
F.J. Scheltens ◽  
M.F. Durstock ◽  
C.E. Tabor ◽  
B.J. Leever ◽  
M.D. Clark ◽  
...  
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Energy Dispersive ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
X Ray ◽  
Spectrum Imaging ◽  
Electron Energy Loss

Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.

scholarly journals Monochromated Electron Energy-Loss Spectroscopy Spectrum Imaging of Organic Photovoltaic Devices

2014 ◽  
Vol 20 (S3) ◽  
pp. 400-401
Author(s):  
Frank J. Scheltens ◽  
Michael F. Durstock ◽  
Christopher E. Tabor ◽  
Benjamin J. Leever ◽  
Lawrence F. Drummy ◽  
...  
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Spectrum Imaging ◽  
Electron Energy Loss

Low-bandgap push–pull molecules in polymer matrices for use in thin-film organic photovoltaic devices

2020 ◽  
Vol 98 (9) ◽  
pp. 564-574 ◽  
Author(s):  
Pierre-Louis M. Brunner ◽  
Daniel Beaudoin ◽  
Alice Heskia ◽  
Thierry Maris ◽  
Marc-André Dubois ◽  
...  
Keyword(s):  
Thin Film ◽  
Methyl Ester ◽  
Acid Methyl Ester ◽  
Electron Donors ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Low Bandgap ◽  
Acid Methyl ◽  
Butyric Acid Methyl Ester

Conjugated polymers are widely used in thin-film organic photovoltaic devices to absorb light and serve as electron donors or acceptors. Small molecular analogues are attractive substitutes because they have fully defined structures, can be purified rigorously, and are typically more soluble and volatile. However, producing active films composed primarily of small molecules remains challenging. We have devised bulk heterojunction solar cells in which poly(3-hexylthiophene-2,5-diyl) and poly[[9-(1-octylnonyl)-9H-carbazole-2,7-diyl]-2,5-thiophenediyl-2,1,3-benzothiadiazole-4,7-diyl-2,5-thiophenediyl] are used as matrices to prepare films containing low-bandgap push–pull molecules as electron donors and (6,6)-phenyl-C61-butyric acid methyl ester or (6,6)-phenyl-C71-butyric acid methyl ester as electron acceptors. Compared with reference devices devoid of push–pull molecular additives, increases in power conversion efficiencies up to 30.4% were measured.

scholarly journals Diffractive nanostructures for enhanced light-harvesting in organic photovoltaic devices

2015 ◽  
Vol 24 (2) ◽  
pp. A358 ◽  
Author(s):  
Jan Mayer ◽  
Benjamin Gallinet ◽  
Ton Offermans ◽  
Rolando Ferrini
Keyword(s):  
Light Harvesting ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices

Progress in Upscaling Organic Photovoltaic Devices

2021 ◽  
pp. 2100342
Author(s):  
Gabriel Bernardo ◽  
Tânia Lopes ◽  
David G. Lidzey ◽  
Adélio Mendes
Keyword(s):  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices
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