(Invited) Boron Subphthalocyanines, Boron Subnaphthalocyanines and Silicon Phthalocyanines - All Very Versatile Materials for 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 ◽  
...  

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

2021 ◽  
Author(s):  
Mario Vebber ◽  
Nicole A. Rice ◽  
Jaclyn L. Brusso ◽  
Benoît H. Lessard

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.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mario C. Vebber ◽  
Nicole A. Rice ◽  
Jaclyn L. Brusso ◽  
Benoît H. Lessard

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.


2020 ◽  
Vol 8 (43) ◽  
pp. 15135-15141
Author(s):  
Jing Yan ◽  
Yuan-Qiu-Qiang Yi ◽  
Jianqi Zhang ◽  
Huanran Feng ◽  
Yanfeng Ma ◽  
...  

Two non-fullerene small molecule acceptors, NT-4F and NT-4Cl, were designed and synthesized. Power conversion efficiencies of 11.44% and 14.55% were achieved for NT-4Cl-based binary and ternary devices, respectively.


2016 ◽  
Vol 136 (5) ◽  
pp. 266-269
Author(s):  
Nobuyuki KASA ◽  
Hiroyuki ASAHARA ◽  
Tomoyuki DANSAKO

2019 ◽  
Author(s):  
Sri Harish Kumar Paleti ◽  
Anastasia Markina ◽  
Nicola Gasparini ◽  
Denis Andrienko ◽  
Derya Baran

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