scholarly journals Boron Subphthalocyanines and Silicon Phthalocyanines for Use as Active Materials in Organic Photovoltaics

2019 ◽  
Vol 19 (6) ◽  
pp. 1093-1112 ◽  
Author(s):  
Trevor M. Grant ◽  
David S. Josey ◽  
Kathleen L. Sampson ◽  
Thanmayee Mudigonda ◽  
Timothy P. Bender ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Active Materials ◽  
Silicon Phthalocyanines

scholarly journals Variance-resistant PTB7 and axially-substituted silicon phthalocyanines as active materials for high-Voc organic photovoltaics

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mario C. Vebber ◽  
Nicole A. Rice ◽  
Jaclyn L. Brusso ◽  
Benoît H. Lessard
Keyword(s):  
Organic Semiconductors ◽  
High Voltage ◽  
Organic Photovoltaics ◽  
Solvent System ◽  
Rechargeable Batteries ◽  
Open Circuit ◽  
Active Materials ◽  
Silicon Phthalocyanines ◽  
Commercial Applications ◽  
Open Circuit Voltages

AbstractWhile the efficiency of organic photovoltaics (OPVs) has improved drastically in the past decade, such devices rely on exorbitantly expensive materials that are unfeasible for commercial applications. Moreover, examples of high voltage single-junction devices, which are necessary for several applications, particularly low-power electronics and rechargeable batteries, are lacking in literature. Alternatively, silicon phthalocyanines (R2-SiPc) are inexpensive, industrially scalable organic semiconductors, having a minimal synthetic complexity (SC) index, and are capable of producing high voltages when used as acceptors in OPVs. In the present work, we have developed high voltage OPVs composed of poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno [3,4 b]thiophenediyl}) (PTB7) and an SiPc derivative ((3BS)2-SiPc). While changes to the solvent system had a strong effect on performance, interestingly, the PTB7:(3BS)2-SiPc active layer were robust to spin speed, annealing and components ratio. This invariance is a desirable characteristic for industrial production. All PTB7:(3BS)2-SiPc devices produced high open circuit voltages between 1.0 and 1.07 V, while maintaining 80% of the overall efficiency, when compared to their fullerene-based counterpart.

Tight binding models accurately predict band structures for copolymer semiconductors

2020 ◽  
Vol 22 (35) ◽  
pp. 19659-19671 ◽  
Author(s):  
Prithvi Tipirneni ◽  
Vishal Jindal ◽  
Michael J. Janik ◽  
Scott T. Milner
Keyword(s):  
Conjugated Polymers ◽  
Organic Photovoltaics ◽  
Tight Binding ◽  
Band Gaps ◽  
Active Materials ◽  
Band Structures ◽  
Wide Range ◽  
Binding Models

Conjugated polymers possess a wide range of desirable properties including accessible band gaps, plasticity, tunability, mechanical flexibility and synthetic versatility, making them attractive as active materials in organic photovoltaics (OPVs).

Bis(trialkylsilyl oxide) Silicon Phthalocyanines: Understanding the Role of Solubility in Device Performance as Ternary Additives in Organic Photovoltaics

Langmuir ◽  
2020 ◽  
Vol 36 (10) ◽  
pp. 2612-2621 ◽  
Author(s):  
Mário C. Vebber ◽  
Trevor M. Grant ◽  
Jaclyn L. Brusso ◽  
Benoît H. Lessard
Keyword(s):  
Organic Photovoltaics ◽  
Device Performance ◽  
Silicon Phthalocyanines

Small D-π-A Systems witho-Phenylene-Bridged Accepting Units as Active Materials for Organic Photovoltaics

2013 ◽  
Vol 19 (30) ◽  
pp. 9948-9960 ◽  
Author(s):  
Antoine Leliège ◽  
Jérémie Grolleau ◽  
Magali Allain ◽  
Philippe Blanchard ◽  
Dora Demeter ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Active Materials

scholarly journals Synthesis of push–pull triarylamine dyes containing 5,6-difluoro-2,1,3-benzothiadiazole units by direct arylation and their evaluation as active material for organic photovoltaics

2021 ◽  
Author(s):  
Tatiana Ghanem ◽  
Tony Vincendeau ◽  
Pablo Simón Marqués ◽  
Amir Hossein Habibi ◽  
Sana Abidi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Active Material ◽  
Preliminary Evaluation ◽  
Active Materials ◽  
Direct Arylation ◽  
Coupling Conditions

Direct (hetero)-arylation was used to prepare two push–pull molecules. Optimization of the experimental coupling conditions and their preliminary evaluation as active materials in simple air-processed organic solar cells are reported herein.

scholarly journals High Voc Fullerene-Free Organic Photovoltaics Composed of PTB7 and Axially-Substituted Silicon Phthalocyanines

2021 ◽  
Author(s):  
Mario Vebber ◽  
Nicole A. Rice ◽  
Jaclyn L. Brusso ◽  
Benoît H. Lessard
Keyword(s):  
Organic Semiconductors ◽  
High Voltage ◽  
Organic Photovoltaics ◽  
Solvent System ◽  
Rechargeable Batteries ◽  
Open Circuit ◽  
The Past ◽  
Silicon Phthalocyanines ◽  
Commercial Applications ◽  
Open Circuit Voltages

Abstract While the efficiency of organic photovoltaics (OPV) has improved drastically in the past decade, such devices rely on exorbitantly expensive materials that are unfeasible for commercial applications. Moreover, examples of high voltage single-junction devices, which are necessary for several applications, particularly low-power electronics and rechargeable batteries, are lacking in literature. Alternatively, silicon phthalocyanines (R2-SiPc) are inexpensive, industrially scalable organic semiconductors, having a minimal synthetic complexity (SC) index, and are capable of producing high voltages when used as acceptors in OPVs. In the present work, we have developed high voltage OPVs composed of Poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno [3,4 b]thiophenediyl}) (PTB7) and an SiPc derivative ((3BS)2-SiPc). Interestingly, while changes to the solvent system had a strong effect on performance, the PTB7:3BS-SiPc active layer were robust to spin speed, annealing and components ratio. This invariance is a desirable characteristic for industrial production. All PTB7:(3BS)2-SiPc devices produced high open circuit voltages between 1.0 and 1.07 V, while maintaining 80% of the overall efficiency, when compared to their fullerene-based counterpart.

Solution processable boron subphthalocyanine derivatives as active materials for organic photovoltaics

2009 ◽  
Author(s):  
Biwu Ma ◽  
Yoshikazu Miyamoto ◽  
Claire H. Woo ◽  
Jean M. J. Fréchet ◽  
Fan Zhang ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Active Materials ◽  
Solution Processable ◽  
Boron Subphthalocyanine
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