Encapsulating Semiconductor Quantum Dots in Supramolecular Cages Enables Ultrafast Guest-Host Electron and Vibrational Energy Transfer

Lu, Shuai5,8; Morrow, Darien J.9; Li, Zhikai7; Guo, Chenxing7; Yu, Xiujun7; Wang, Heng1,3,4; Schultz, Jonathan D.10; O'Connor, James P.10; Jin, Na11; Fang, Fang12; Wang, Wu13; Cui, Ran14; Chen, Ou11; Su, Chenliang8; Wasielewski, Michael R.10; Ma, Xuedan2; Li, Xiaopeng5,6

2023-02-01

10.1021/jacs.2c11981

Journal of the American Chemical Society   Impact Factor & Quartile

0002-7863

1520-5126

In the field of supramolecular chemistry, host- guest systems have been extensively explored to encapsulate a wide range of substrates, owing to emerging functionalities in nano-confined space that cannot be achieved in dilute solutions. However, host-guest chemistry is still limited to encapsulation of small guests. Herein, we construct a water-soluble metallo-supramolecular hexagonal prism with a large hydrophobic cavity by anchoring multiple polyethylene glycol chains onto the building blocks. Then, assembled prisms are able to encapsulate quantum dots (QDs) with diameters of less than 5.0 nm. Furthermore, we find that the supramolecular cage around each QD strongly modifies the photophysics of the QD by universally increasing the rates of QD relaxation processes via ultrafast electron and vibrational energy transfer. Taken together, these efforts expand the scope of substrates in host-guest systems and provide a new approach to tune the optical properties of QDs.

SCI

English

NI Journal Papers

Others

National Natural Science Foundation of China["22125106","22001176"] ; Developmental Fund for Science and Technology of Shenzhen["RCJC20200714114556036","20200812104046002","RCYX20210706092044070"] ; Center for Molecular Quantum Transduction, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences[DE-SC0021314] ; U.S. DOE, Office of Basic Energy Sciences[DE-AC02-06CH11357]

Chemistry

Chemistry, Multidisciplinary

WOS:000930566900001

AMER CHEMICAL SOC

Web of Science

1.Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Guangdong, Peoples R China
2.Ctr Nanoscale Mat, Argonne Natl Lab, Lemont, IL 60439 USA
3.Northwestern Argonne Inst Sci & Engn, Ctr Mol Quantum Transduct, Evanston, IL 60208 USA
4.Univ Chicago, Consortium Adv Sci & Engn, Chicago, IL 60637 USA
5.Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Guangdong, Peoples R China
6.Shenzhen Univ, Shenzhen Univ Gen Hosp, Clin Med Acad, Shenzhen 518055, Guangdong, Peoples R China
7.Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Guangdong, Peoples R China
8.Shenzhen Univ, Inst Microscale Optoelect, Shenzhen 518060, Guangdong, Peoples R China
9.Ctr Nanoscale Mat, Argonne Natl Lab, Lemont, IL 60439 USA
10.Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
11.Brown Univ, Dept Chem, Providence, RI 02912 USA
12.Shenzhen Univ, Instrumental Anal Ctr, Shenzhen 518060, Guangdong, Peoples R China
13.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Guangdong, Peoples R China
14.Wuhan Univ, Coll Chem & Mol Sci, Key Lab Analyt Chem Biol & Med, Wuhan 430072, Hubei, Peoples R China

Lu, Shuai,Morrow, Darien J.,Li, Zhikai,et al. Encapsulating Semiconductor Quantum Dots in Supramolecular Cages Enables Ultrafast Guest-Host Electron and Vibrational Energy Transfer[J]. Journal of the American Chemical Society,2023.

Lu, Shuai.,Morrow, Darien J..,Li, Zhikai.,Guo, Chenxing.,Yu, Xiujun.,...&Li, Xiaopeng.(2023).Encapsulating Semiconductor Quantum Dots in Supramolecular Cages Enables Ultrafast Guest-Host Electron and Vibrational Energy Transfer.Journal of the American Chemical Society.

Lu, Shuai,et al."Encapsulating Semiconductor Quantum Dots in Supramolecular Cages Enables Ultrafast Guest-Host Electron and Vibrational Energy Transfer".Journal of the American Chemical Society (2023).