Bright Fluorophores in the Second Near-Infrared Window: HgSe/ CdSe Quantum Dots

被引：25

作者：

Kamath, Ananth ^{[1
,2
]}

Schaller, Richard D. ^{[3
,4
]}

Guyot-Sionnest, Philippe ^{[1
,2
]}

机构：

[1] Univ Chicago, Dept Chem, Chicago, IL 60637 USA

[2] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

[3] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[4] Argonne Natl Lab, Ctr Nanoscale Mat, Lemont, IL 60439 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2023年 / 145卷 / 19期

基金：

美国国家科学基金会;

关键词：

PHOTOLUMINESCENCE; NANOCRYSTALS; EMISSION; YIELDS; SE;

D O I：

10.1021/jacs.3c02190

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fluorophores emitting in the NIR-IIb wavelength range (1.5-1.7 mu m) show great potential for bioimaging due to their large tissue penetration. However, current fluorophores suffer from poor emission with quantum yields similar to 2% in aqueous solvents. In this work, we report the synthesis of HgSe/CdSe core/shell quantum dots (QDs) emitting at 1.7 mu m through the interband transition. Growth of a thick shell led to a drastic increase in the photoluminescence quantum yield, with a value of 63% in nonpolar solvents. The quantum yields of our QDs and other reported QDs are explained well by a model of Forster resonance energy transfer to ligands and solvent molecules. The model predicts a quantum yield >12% when these HgSe/CdSe QDs are solubilized in water. Our work demonstrates the importance of a thick type-I shell to obtain bright emission in the NIR-IIb region.

引用

收藏

页码：10809 / 10816

页数：8

相关论文

共 38 条

[1] Room Temperature Synthesis of HgTe Quantum Dots in an Aprotic Solvent Realizing High Photoluminescence Quantum Yields in the Infrared [J].

Abdelazim, Nema M. ;

Zhu, Qiang ;

Xiong, Yuan ;

Zhu, Ye ;

Chen, Mengyu ;

Zhao, Ni ;

Kershaw, Stephen V. ;

Rogach, Andrey L. .

CHEMISTRY OF MATERIALS, 2017, 29 (18) :7859-7867

[2] Soluble, Chloride-Terminated CdSe Nanocrystals: Ligand Exchange Monitored by 1H and 31P NMR Spectroscopy [J].

Anderson, Nicholas C. ;

Owen, Jonathan S. .

CHEMISTRY OF MATERIALS, 2013, 25 (01) :69-76

[3] Next-generation in vivo optical imaging with short-wave infrared quantum dots [J].

Bruns, Oliver T. ;

Bischof, Thomas S. ;

Harris, Daniel K. ;

Franke, Daniel ;

Shi, Yanxiang ;

Riedemann, Lars ;

Bartelt, Alexander ;

Jaworski, Frank B. ;

Carr, Jessica A. ;

Rowlands, Christopher J. ;

Wilson, Mark W. B. ;

Chen, Ou ;

Wei, He ;

Hwang, Gyu Weon ;

Montana, Daniel M. ;

Coropceanu, Igor ;

Achorn, Odin B. ;

Kloepper, Jonas ;

Heeren, Joerg ;

So, Peter T. C. ;

Fukumura, Dai ;

Jensen, Klavs F. ;

Jain, Rakesh K. ;

Bawendi, Moungi G. .

NATURE BIOMEDICAL ENGINEERING, 2017, 1 (04)

[4]

Carr J. A., P NATL ACAD SCI

[5] Giant multishell CdSe nanocrystal quantum dots with suppressed blinking [J].

Chen, Yongfen ;

Vela, Javier ;

Htoon, Han ;

Casson, Joanna L. ;

Werder, Donald J. ;

Bussian, David A. ;

Klimov, Victor I. ;

Hollingsworth, Jennifer A. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (15) :5026-5027

[6] Continuous injection synthesis of indium arsenide quantum dots emissive in the short-wavelength infrared [J].

Franke, Daniel ;

Harris, Daniel K. ;

Chen, Ou ;

Bruns, Oliver T. ;

Carr, Jessica A. ;

Wilson, Mark W. B. ;

Bawendi, Moungi G. .

NATURE COMMUNICATIONS, 2016, 7

[7] MULTIPHONON PROCESSES IN NONRADIATIVE DECAY OF LARGE MOLECULES [J].

FREED, KF ;

JORTNER, J .

JOURNAL OF CHEMICAL PHYSICS, 1970, 52 (12) :6272-+

[8] Establishing design principles for emissive organic SWIR chromophores from energy gap laws [J].

Friedman, Hannah C. ;

Cosco, Emily D. ;

Atallah, Timothy L. ;

Jia, Shang ;

Sletten, Ellen M. ;

Caram, Justin R. .

CHEM, 2021, 7 (12) :3359-3376

[9] Intraband relaxation in CdSe nanocrystals and the strong influence of the surface ligands [J].

Guyot-Sionnest, P ;

Wehrenberg, B ;

Yu, D .

JOURNAL OF CHEMICAL PHYSICS, 2005, 123 (07)

[10] Giant PbSe/CdSe/CdSe Quantum Dots: Crystal-Structure-Defined Ultrastable Near-Infrared Photoluminescence from Single Nanocrystals [J].

Hanson, Christina J. ;

Hartmann, Nicolai F. ;

Singh, Ajay ;

Ma, Xuedan ;

DeBenedetti, William J. I. ;

Casson, Joanna L. ;

Grey, John K. ;

Chabal, Yves J. ;

Malko, Anton V. ;

Sykora, Milan ;

Piryatinski, Andrei ;

Htoon, Han ;

Hollingsworth, Jennifer A. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (32) :11081-11088

← 1 2 3 4 →