Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals

Mei, Sheng1,2; Zhou, Jiajia1; Sun, Hong-Tao3,4; Cai, Yangjian5; Sun, Ling-Dong2; Jin, Dayong1,5; Yan, Chun-Hua2,6

2021-03-01

10.1002/advs.202003325

ADVANCED SCIENCE   影响因子和分区

2198-3844

At the organic-inorganic interface of nanocrystals, electron-phonon coupling plays an important but intricate role in determining the diverse properties of nanomaterials. Here, it is reported that highly doping of Yb3+ ions within the nanocrystal host can form an energy-migration network. The networking state Yb3+ shows both distinct Stark splitting peak ratios and lifetime dynamics, which allows quantitative investigations of quenching and thermal activation of luminescence, as the high-dimensional spectroscopy signatures can be correlated to the attaching and de-attaching status of surface molecules. By in-situ surface characterizations, it is proved that the Yb-O coordination associated with coordinated water molecules has significantly contributed to this reversible effect. Moreover, using this approach, the prime quencher -OH can be switched to -CH in the wet-chemistry annealing process, resulting in the electron-phonon coupling probability change. This study provides the molecular level insights and dynamics of the surface dark layer of luminescent nanocrystals.

lanthanide nanocrystals luminescence quenching ytterbium ions

SCI ; EI

英语

通讯

ARC Discovery Early Career Researcher Award Scheme[DE180100669] ; Science and Technology Innovation Commission of Shenzhen[KQTD20170810110913065] ; Australia-China Joint Research Centre for Point-of-Care Testing["ACSRF65827","SQ2017YFGH001190"] ; National Natural Science Foundation of China[21590791,21771005,21931001,21425101] ; Ministry of Science and Technology (MOST) of China["2017YFA0205101","2017YFA0205104"] ; China Scholarship Council Scholarships[201706010060]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000612806000001

WILEY

20210509845896

Chemical activation ; Electron correlations ; Electron-phonon interactions ; Luminescence ; Molecules ; Quenching ; Ytterbium ; Ytterbium compounds

Heat Treatment Processes:537.1 ; Rare Earth Metals:547.2 ; Light/Optics:741.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Atomic and Molecular Physics:931.3

Web of Science

1.Univ Technol Sydney, Fac Sci, Inst Biomed Mat & Devices IBMD, Sydney, NSW 2007, Australia
2.Peking Univ, Coll Chem & Mol Engn, PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Che, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
3.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou, Jiangsu 215123, Peoples R China
4.Natl Inst Mat Sci NIMS, Int Ctr Mat Nanoarchitecton MANA, Tsukuba, Ibaraki 3050044, Japan
5.Southern Univ Sci & Technol, UTS SUStech Joint Res Ctr Biomed Mat & Devices, Shenzhen 518055, Guangdong, Peoples R China
6.Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

Mei, Sheng,Zhou, Jiajia,Sun, Hong-Tao,et al. Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals[J]. ADVANCED SCIENCE,2021,8(6).

Mei, Sheng.,Zhou, Jiajia.,Sun, Hong-Tao.,Cai, Yangjian.,Sun, Ling-Dong.,...&Yan, Chun-Hua.(2021).Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals.ADVANCED SCIENCE,8(6).

Mei, Sheng,et al."Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals".ADVANCED SCIENCE 8.6(2021).