1
|
Lv P, Zhao D, Ma Z, Cong M, Sui Y, Xiao G, Zou B. Pressure-Modulated Interface Engineering toward Realizing Core@Shell Configuration Transition. NANO LETTERS 2023; 23:11982-11988. [PMID: 38051759 DOI: 10.1021/acs.nanolett.3c04359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
The strained interface of core@shell nanocrystals (NCs) can effectively modulate the energy level alignment, thereby significantly affecting the optical properties. Herein, the unique photoluminescence (PL) response of doped Mn ions is introduced as a robust probe to detect the targeted pressure-strain relation of CdS@ZnS NCs. Results show that the core experiences actually less pressure than the applied external pressure, attributed to the pressure-induced optimized interface that reduces the compressive strain on core. The pressure difference between core and shell increases the conduction band and valence band offsets and further achieves the core@shell configuration transition from quasi type II to type I. Accordingly, the PL intensity of CdS@ZnS NCs slightly increases, along with a faster blue-shift rate of PL peak under low pressure. This study elucidates the interplay between external physical pressure and interfacial chemical stress for core@shell NCs, leading to precise construction of interface engineering for practical applications.
Collapse
Affiliation(s)
- Pengfei Lv
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Dianlong Zhao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Zhiwei Ma
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Ming Cong
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Yongming Sui
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Guanjun Xiao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, People's Republic of China
| |
Collapse
|
2
|
Meng L, Lane JMD, Baca L, Tafoya J, Ao T, Stoltzfus B, Knudson M, Morgan D, Austin K, Park C, Chow P, Xiao Y, Li R, Qin Y, Fan H. Shape Dependence of Pressure-Induced Phase Transition in CdS Semiconductor Nanocrystals. J Am Chem Soc 2020; 142:6505-6510. [PMID: 32202423 DOI: 10.1021/jacs.0c01906] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Understanding structural stability and phase transformation of nanoparticles under high pressure is of great scientific interest, as it is one of the crucial factors for design, synthesis, and application of materials. Even though high-pressure research on nanomaterials has been widely conducted, their shape-dependent phase transition behavior still remains unclear. Examples of phase transitions of CdS nanoparticles are very limited, despite the fact that it is one of the most studied wide band gap semiconductors. Here we have employed in situ synchrotron wide-angle X-ray scattering and transmission electron microscopy (TEM) to investigate the high-pressure behaviors of CdS nanoparticles as a function of particle shapes. We observed that CdS nanoparticles transform from wurtzite to rocksalt phase at elevated pressure in comparison to their bulk counterpart. Phase transitions also vary with particle shape: rod-shaped particles show a partially reversible phase transition and the onset of the structural phase transition pressure decreases with decreasing surface-to-volume ratios, while spherical particles undergo irreversible phase transition with relatively low phase transition pressure. Additionally, TEM images of spherical particles exhibited sintering-induced morphology change after high-pressure compression. Calculations of the bulk modulus reveal that spheres are more compressible than rods in the wurtzite phase. These results indicate that the shape of the particle plays an important role in determining their high-pressure properties. Our study provides important insights into understanding the phase-structure-property relationship, guiding future design and synthesis of nanoparticles for promising applications.
Collapse
Affiliation(s)
- Lingyao Meng
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - J Matthew D Lane
- Sandia National Laboratories, Albuquerque, New Mexico 87123, United States
| | - Luke Baca
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Jackie Tafoya
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Tommy Ao
- Sandia National Laboratories, Albuquerque, New Mexico 87123, United States
| | - Brian Stoltzfus
- Sandia National Laboratories, Albuquerque, New Mexico 87123, United States
| | - Marcus Knudson
- Sandia National Laboratories, Albuquerque, New Mexico 87123, United States
| | - Dane Morgan
- Nevada National Security Site, New Mexico Operations-Sandia, Albuquerque, New Mexico 87123, United States
| | - Kevin Austin
- Sandia National Laboratories, Albuquerque, New Mexico 87123, United States
| | - Changyong Park
- HPCAT, X-ray Science Division, Argonne National Laboratories, Lemont, Illinois 60439, United States
| | - Paul Chow
- HPCAT, X-ray Science Division, Argonne National Laboratories, Lemont, Illinois 60439, United States
| | - Yuming Xiao
- HPCAT, X-ray Science Division, Argonne National Laboratories, Lemont, Illinois 60439, United States
| | - Ruipeng Li
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Yang Qin
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Hongyou Fan
- Sandia National Laboratories, Albuquerque, New Mexico 87123, United States.,Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87131, United States.,Center for Integrated Nanotechnology, Sandia National Laboratories, Albuquerque, New Mexico 87123, United States
| |
Collapse
|
3
|
Zhao R, Yang T, Luo Y, Chuai M, Wu X, Zhang Y, Ma Y, Zhang M. Structural phase transition and photoluminescence properties of wurtzite CdS:Eu3+ nanoparticles under high pressure. RSC Adv 2017. [DOI: 10.1039/c7ra03878j] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Eu dopant increases the phase transition pressure from wurtzite to rocksalt structure compared with CdS nanoparticles. The PL peaks of the Eu3+ ions can used as pressure probe after the quenching of the PL peaks of rocksalt structure CdS.
Collapse
Affiliation(s)
- Rui Zhao
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun 130012
- People's Republic of China
- College of Computer
| | - Tianye Yang
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Yang Luo
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Mingyan Chuai
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Xiaoxin Wu
- Center for Hight Pressure Science & Technology Advanced Research
- Changchun 130012
- China
| | - Yanyan Zhang
- Center for Hight Pressure Science & Technology Advanced Research
- Changchun 130012
- China
| | - Yanzhang Ma
- Center for Hight Pressure Science & Technology Advanced Research
- Changchun 130012
- China
- Department of Mechanical Engineering
- Texas Technology University
| | - Mingzhe Zhang
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun 130012
- People's Republic of China
| |
Collapse
|
4
|
Wang P, Zhao R, Wu L, Zhang M. Effect of Y doping on high-pressure behavior of Ag2S nanocrystals. RSC Adv 2017. [DOI: 10.1039/c7ra05327d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The effect of the dopant Y on high-pressure-induced polymorph transformation was investigated in Ag2S nanocrystals.
Collapse
Affiliation(s)
- Pan Wang
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun 130012
- China
- State Key Laboratory of Supramolecular Structure and Materials
| | - Rui Zhao
- College of Computer
- Jilin Normal University
- Siping 136000
- China
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- China
| | - Mingzhe Zhang
- State Key Laboratory of Superhard Materials
- Jilin University
- Changchun 130012
- China
| |
Collapse
|