Multifunctional ternary additive in bulk heterojunction OPV: increased device performance and stability

Grant, Trevor M.; Gorisse, Thérèse; Dautel, Olivier; Wantz, Guillaume; Lessard, Benoît H.

doi:10.1039/c6ta08593h

Cited by 55 publications

(67 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More recent studies have explored carboxylate‐substituted silicon phthalocyanines, which may be similarly synthesized by mixing Cl 2 ‐SiPc with an excess of a carboxylic acid in refluxing diglyme or toluene, depending on the solubility of the reagent (Scheme v,vi). To date a variety of carboxylate substituents have been reported . These synthetic routes allow for a diverse range of axial substitution of SiPcs allowing a diverse range of derivatives for successful incorporation into OPVs.…”

Section: Silicon Phthalocyaninesmentioning

confidence: 99%

“…In a recent study, Grant et al . synthesized the azide‐functionalized SiPc bis(6‐azidohexanoate)silicon phthalocyanine ((HxN 3 ) 2 ‐SiPc, Figure ), which showed characteristic SiPc optoelectrical properties and sufficient solubility for use in solution‐processed devices . As a ternary additive in P3HT/PC 61 BM BHJ devices, the additive showed EQE contribution in the phthalocyanine absorption range of 680 to 720 nm and was able to simultaneously stabilize the device efficiency after thermal ageing by suppression of fullerene aggregation.…”

Section: Silicon Phthalocyaninesmentioning

confidence: 99%

“… Photocurrent enhancing and stability improving dual functional ternary additive: bis(6‐azidohexanoate)silicon phthalocyanine ((HxN 3 ) 2 ‐SiPc) …”

Section: Silicon Phthalocyaninesmentioning

confidence: 99%

See 2 more Smart Citations

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

Grant

Josey

Sampson

et al. 2019

The Chemical Record

Self Cite

View full text Add to dashboard Cite

Organic photovoltaics (OPVs) have experienced continued interest over the last 25 years as a viable technology for the generation of power. Phthalocyanines are among the oldest commercial dyes and have been utilized in some of the earliest examples of OPVs. In recent years, the use of boron subphthalocyanines (BsubPcs) and silicon phthalocyanines (SiPcs) has attracted a flurry of interest with some examples of fullerene‐free devices reaching power conversion efficiencies >8 %. Unlike other more common divalent phthalocyanines such as copper or zinc, BsubPcs and SiPcs contain additional axial groups that can easily be functionalized without significantly affecting the optoelectronic properties of the macrocycle. This handle facilitates our ability to tune the solid‐state arrangement and other physical characteristics such as solubility ultimately giving us the ability to improve the thin film processing and final device performance. This review covers recent studies on the development of BsubPcs and SiPcs for use as active materials in organic photovoltaics.

show abstract

Section: Silicon Phthalocyaninesmentioning

confidence: 99%

Section: Silicon Phthalocyaninesmentioning

confidence: 99%

See 1 more Smart Citation

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

Grant

Josey

Sampson

et al. 2019

The Chemical Record

Self Cite

View full text Add to dashboard Cite

show abstract

“…This can be secured with the integration into the active layer of a third component [29][30][31][32]. This third element could be a polymer [32][33][34][35], an organic small molecule [36][37][38][39][40][41][42][43][44][45][46][47][48][49], a dye [50][51][52], a fullerene derivative [53], a graphene and a two dimensional (2D)-based material [54][55][56][57][58][59], or a nanocrystal [60]. The introduction and the availability of materials to be leveraged as third element support the better engineering of this architecture towards better photovoltaic OSCs' performances.…”

Section: Introductionmentioning

confidence: 99%

Benzothiadiazole Based Cascade Material to Boost the Performance of Inverted Ternary Organic Solar Cells

et al. 2020

View full text Add to dashboard Cite

A conjugated, ladder-type multi-fused ring 4,7-dithienbenzothiadiazole:thiophene derivative, named as compound ‘T’, was for the first time incorporated, within the PTB7:PC71BM photoactive layer for inverted ternary organic solar cells (TOSCs) realization. The effective energy level offset caused by compound T between the polymeric donor and fullerene acceptor materials, as well as its resulting potential as electron cascade material contribute to an enhanced exciton dissociation, electron transfer facilitator and thus improved overall photovoltaic performance. The engineering optimization of the inverted TOSC, ITO/PFN/PTB7:Compound T(5% v/v):PC71BM/MoO3/Al, resulted in an overall power conversion efficiency (PCE) of 8.34%, with a short-circuit current density (Jsc) of 16.75 mA cm−2, open-circuit voltage (Voc) of 0.74 V and a fill factor (FF) of 68.1%, under AM1.5G illumination. This photovoltaic performance was improved by approximately 12% with respect to the control binary device.

show abstract

“…Recently, SiPcs have attracted significant interest from our group and others for their integration into OPVs, both as an additive in BHJ devices [48][49][50][51] or as an acceptor or donor in either BHJ or PHJ devices [52][53][54]. We reported the use of bis(6-azidohexanoate)silicon phthalocyanine ((HxN 3 ) 2 -SiPc) as the first dual function ternary additive for OPV, which improved the device stability through cross linking while simultaneously increasing the PCE by absorbing in the near IR region [49]. Through axial substitution such as phenoxylation, it is also possible to engineer the solid state stacking of the resulting SiPc derivatives in the thin films.…”

Section: Introductionmentioning

confidence: 99%

Silicon Phthalocyanines as Acceptor Candidates in Mixed Solution/Evaporation Processed Planar Heterojunction Organic Photovoltaic Devices

2019

View full text Add to dashboard Cite

Silicon phthalocyanines (SiPc) are showing promise as both ternary additives and non-fullerene acceptors in organic photovoltaics (OPVs) as a result of their ease of synthesis, chemical stability and strong absorption. In this study, bis(3,4,5-trifluorophenoxy) silicon phthalocyanine ((345F)2-SiPc)) and bis(2,4,6-trifluorophenoxy) silicon phthalocyanine ((246F)2-SiPc)) are employed as acceptors in mixed solution/evaporation planar heterojunction (PHJ) devices. The donor layer, either poly(3-hexylthiophene) (P3HT) or poly[N-9′-heptadecanyl-2,7-carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)] (PCDTBT), was spin coated followed by the evaporation of the SiPc acceptor thin film. Several different donor/acceptor combinations were investigated in addition to investigations to determine the effect of film thickness on device performance. Finally, the effects of annealing, prior to SiPc deposition, after SiPc deposition, and during SiPc deposition were also investigated. The devices which performed the best were obtained using PCDTBT as the donor, with a 90 nm film of (345F)2-SiPc as the acceptor, followed by thermal annealing at 150 °C for 30 min of the entire mixed solution/evaporation device. An open-circuit voltage (Voc) of 0.88 V and a fill factor (FF) of 0.52 were achieved leading to devices that outperformed corresponding fullerene-based PHJ devices.

show abstract

Multifunctional ternary additive in bulk heterojunction OPV: increased device performance and stability

Abstract: Great improvements in the development of organic photovoltaic (OPV) devices have been reported over the years; however, the overall efficiency and operational lifetimes of the devices must be improved.

Cited by 55 publications

References 33 publications

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

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

Benzothiadiazole Based Cascade Material to Boost the Performance of Inverted Ternary Organic Solar Cells

Silicon Phthalocyanines as Acceptor Candidates in Mixed Solution/Evaporation Processed Planar Heterojunction Organic Photovoltaic Devices

Contact Info

Product

Resources

About