Confinement of Dyes inside Boron Nitride Nanotubes: Photostable and Shifted Fluorescence down to the Near Infrared

Allard, Charlotte; Schue, Léonard; Fossard, Frédéric; Recher, Gaëlle; Nascimento, Rafaella Oliveira do; Flahaut, Emmanuel; Loiseau, Annick; Desjardins, P.; Martel, Richard; Gaufrès, Étienne

doi:10.1002/adma.202001429

Cited by 32 publications

(38 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One solution to this is using the larger bandgap BNNTs as an alternative. [99] Its 6 eV bandgap will allow a nonperturbing environment for most optical characterizations. However, to achieve similar 1D heterostructures as currently prepared for SWCNTs, holding just a single or double file of dye molecules, small-diameter, long and isolated BNNTs will be highly desired for these studies.…”

Section: Discussionmentioning

confidence: 99%

“…To solve this issue, very recently, BNNTs have been similarly filled with dye molecules. [99] The much larger bandgap of BNNTs and their corresponding optical transparency in the visible and near-infrared provide the ideal homogeneous environment for the confined dyes, protecting them from photochemical damage while maintaining and even improving the strong emission from the dyes. Indeed, it was demonstrated that the stability of the dyes in terms of bleaching and blinking was increased by more than four orders of magnitude after encapsulation in BNNTs.…”

Section: Molecular Confinement and Alignment Inside Swcntsmentioning

confidence: 99%

“…Indeed, it was demonstrated that the stability of the dyes in terms of bleaching and blinking was increased by more than four orders of magnitude after encapsulation in BNNTs. [99] The aggregation inside the confined BNNT interior moreover resulted in a shifted dye emission, even toward the second optical transparency window in the near-infrared, ideally suited for bioimaging applications.…”

Section: Molecular Confinement and Alignment Inside Swcntsmentioning

confidence: 99%

See 2 more Smart Citations

Nanotube‐Based 1D Heterostructures Coupled by van der Waals Forces

Cambré

Liu

Levshov

et al. 2021

Small

View full text Add to dashboard Cite

1D van der Waals heterostructures based on carbon nanotube templates are raising a lot of excitement due to the possibility of creating new optical and electronic properties, by either confining molecules inside their hollow core or by adding layers on the outside of the nanotube. In contrast to their 2D analogs, where the number of layers, atomic type and relative orientation of the constituting layers are the main parameters defining physical properties, 1D heterostructures provide an additional degree of freedom, i.e., their specific diameter and chiral structure, for engineering their characteristics. The current state-of-the-art in synthesizing 1D heterostructures are discussed here, in particular focusing on their resulting optical properties, and details the vast parameter space that can be used to design heterostructures with custombuilt properties that can be integrated into a large variety of applications. First, the effects of van der Waals coupling on the properties of the simplest and best-studied 1D heterostructure, namely a double-walled carbon nanotube, are described, and then heterostructures built from the inside and the outside are considered, which all use a nanotube as a template, and, finally, an outlook is provided for the future of this research field.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Molecular Confinement and Alignment Inside Swcntsmentioning

confidence: 99%

Section: Molecular Confinement and Alignment Inside Swcntsmentioning

confidence: 99%

See 1 more Smart Citation

Nanotube‐Based 1D Heterostructures Coupled by van der Waals Forces

Cambré

Liu

Levshov

et al. 2021

Small

View full text Add to dashboard Cite

show abstract

“…More recently, Allard et al demonstrated the filling of BNNTs with dye molecules (dye@BNNTs). 22 They found that BNNTs could protect the dyes against photobleaching and chemical degradation, allow aggregation of dyes that produce fluorescence red-shifts, and reduce the inherent toxicity of dyes on living tissues. The disadvantage of dye@ BNNTs is that the quantum yield (QY) of the dye, for example, 6T (α-sexithiophene), has reduced to 8%−16%, much lower than that of free 6T dye (QY ∼ 0.6−1.0).…”

Section: Future Perspective and Summarymentioning

confidence: 99%

Emerging Applications of Boron Nitride Nanotubes in Energy Harvesting, Electronics, and Biomedicine

Zhang

Yapici

et al. 2021

ACS Omega

View full text Add to dashboard Cite

Boron nitride nanotubes (BNNTs) are structurally and mechanically similar to carbon nanotubes (CNTs). In contrast, BNNTs exhibit unique properties for being electrically insulating and optically transparent due to the polarized boron nitride bonds. All these properties have prevented the use of BNNTs for energy harvesting and electronic devices for more than 25 years. During the past few years, researchers have started to demonstrate a series of novel applications of BNNTs based on unique properties not found on CNTs. For example, these novel applications include osmotic power harvesting using the charged inner surfaces of BNNTs, room-temperature single-electron transistors using insulating BNNTs as the tunneling channels, high-brightness fluorophores that can be 1000-times brighter than regular dyes, and transistors based on Tellurium atomic chains filled inside BNNTs. We have reviewed some of these emerging applications and provided our perspective for future work.

show abstract

“… 4,5 Dyes are frequently used to decorate objects and contain various organic compounds. 6 They will do a lot of damage to water if they get into it. 7 Adsorption and photodegradation are the most frequent dye removal procedures.…”

Section: Introductionmentioning

confidence: 99%