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Huang F, Bagheri N, Wang L, Ågren H, Zhang J, Pu R, Zhan Q, Jing Y, Xu W, Widengren J, Liu H. Suppression of Cation Intermixing Highly Boosts the Performance of Core-Shell Lanthanide Upconversion Nanoparticles. J Am Chem Soc 2023; 145:17621-17631. [PMID: 37549032 PMCID: PMC10436270 DOI: 10.1021/jacs.3c03019] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Indexed: 08/09/2023]
Abstract
Lanthanide upconversion nanoparticles (UCNPs) have been extensively explored as biomarkers, energy transducers, and information carriers in wide-ranging applications in areas from healthcare and energy to information technology. In promoting the brightness and enriching the functionalities of UCNPs, core-shell structural engineering has been well-established as an important approach. Despite its importance, a strong limiting issue has been identified, namely, cation intermixing in the interfacial region of the synthesized core-shell nanoparticles. Currently, there still exists confusion regarding this destructive phenomenon and there is a lack of facile means to reach a delicate control of it. By means of a new set of experiments, we identify and provide in this work a comprehensive picture for the major physical mechanism of cation intermixing occurring in synthesis of core-shell UCNPs, i.e., partial or substantial core nanoparticle dissolution followed by epitaxial growth of the outer layer and ripening of the entire particle. Based on this picture, we provide an easy but effective approach to tackle this issue that enables us to produce UCNPs with highly boosted optical properties.
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Affiliation(s)
- Fuhua Huang
- Department
of Applied Physics, KTH Royal Institute
of Technology, S-10691 Stockholm, Sweden
- College
of Chemistry and Molecular Sciences, Henan
University, Kaifeng, Henan 475004, P. R. China
- Henan
Center for Outstanding Overseas Scientists, Henan University, Kaifeng 475004, P. R. China
| | - Niusha Bagheri
- Department
of Applied Physics, KTH Royal Institute
of Technology, S-10691 Stockholm, Sweden
| | - Li Wang
- College
of Chemistry and Molecular Sciences, Henan
University, Kaifeng, Henan 475004, P. R. China
- Henan
Center for Outstanding Overseas Scientists, Henan University, Kaifeng 475004, P. R. China
| | - Hans Ågren
- College
of Chemistry and Molecular Sciences, Henan
University, Kaifeng, Henan 475004, P. R. China
- Henan
Center for Outstanding Overseas Scientists, Henan University, Kaifeng 475004, P. R. China
| | - Jinglai Zhang
- College
of Chemistry and Molecular Sciences, Henan
University, Kaifeng, Henan 475004, P. R. China
- Henan
Center for Outstanding Overseas Scientists, Henan University, Kaifeng 475004, P. R. China
| | - Rui Pu
- Centre
for Optical and Electromagnetic Research, Guangdong Provincial Key
Laboratory of Optical Information Materials and Technology, South
China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P.R. China
| | - Qiuqiang Zhan
- Centre
for Optical and Electromagnetic Research, Guangdong Provincial Key
Laboratory of Optical Information Materials and Technology, South
China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P.R. China
- MOE
Key Laboratory of Laser Life Science, Guangdong Engineering Research
Centre of Optoelectronic Intelligent Information Perception, South China Normal University, Guangzhou 510631, P.R. China
| | - Yuhan Jing
- Key Laboratory
of New Energy and Rare Earth Resource Utilization of State Ethnic
Affairs Commission, Key Laboratory of Photosensitive Materials &
Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian 11660, P.R. China
| | - Wen Xu
- Key Laboratory
of New Energy and Rare Earth Resource Utilization of State Ethnic
Affairs Commission, Key Laboratory of Photosensitive Materials &
Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian 11660, P.R. China
| | - Jerker Widengren
- Department
of Applied Physics, KTH Royal Institute
of Technology, S-10691 Stockholm, Sweden
| | - Haichun Liu
- Department
of Applied Physics, KTH Royal Institute
of Technology, S-10691 Stockholm, Sweden
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Li H, Yu M, Dai J, Zhou G, Sun J. Upconversion Nanoparticle-Based Fluorescent Film for Distributed Temperature Monitoring of Mobile Phones' Integrated Chips. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111704. [PMID: 37299607 DOI: 10.3390/nano13111704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023]
Abstract
As one of the most critical parameters to evaluate the quality and performance of mobile phones, real-time temperature monitoring of mobile phones' integrated chips is vital in the electronics industry. Although several different strategies for the measurement of chips' surface temperature have been proposed in recent years, distributed temperature monitoring with high spatial resolution is still a hot issue with an urgent need to be solved. In this work, a fluorescent film material with photothermal properties containing thermosensitive upconversion nanoparticles (UCNPs) and polydimethylsiloxane (PDMS) is fabricated for the monitoring of the chips' surface temperature. The presented fluorescent films have thicknesses ranging from 23 to 90 μm and are both flexible and elastic. Using the fluorescence intensity ratio (FIR) technique, the temperature-sensing properties of these fluorescent films are investigated. The maximum sensitivity of the fluorescent film was measured to be 1.43% K-1 at 299 K. By testing the temperature at different positions of the optical film, distributed temperature monitoring with a high spatial resolution down to 10 μm on the chip surface was successfully achieved. It is worth mentioning that the film maintained stable performance even under pull stretching up to 100%. The correctness of the method is verified by taking infrared images of the chip surface with an infrared camera. These results demonstrate that the as-prepared optical film is a promising anti-deformation material for monitoring temperature with high spatial resolution on-chip surfaces.
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Affiliation(s)
- Hanyang Li
- College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
| | - Miao Yu
- College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jichun Dai
- College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
| | - Gaoqian Zhou
- College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jiapeng Sun
- College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
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Cao TD, Le TG, Nguyen TN, Dau TN, Nguyen VT, Tran TV. Investigating the effect of Yb3+ and Er3+ concentration on red/green luminescent ratio in β-NaYF4: Er, Yb nanocrystals using spectroscopic techniques. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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