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Kwon S, Jeong DY, Hong C, Oh S, Song J, Choi SH, Kim KK, Yoon S, Choi T, Yee K, Kim J, You Y, Kim D. Exciton Transfer at Heterointerfaces of MoS 2 Monolayers and Fluorescent Molecular Aggregates. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201875. [PMID: 35712754 PMCID: PMC9376849 DOI: 10.1002/advs.202201875] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Integration of distinct materials to form heterostructures enables the proposal of new functional devices based on emergent physical phenomena beyond the properties of the constituent materials. The optical responses and electrical transport characteristics of heterostructures depend on the charge and exciton transfer (CT and ET) at the interfaces, determined by the interfacial energy level alignment. In this work, heterostructures consisting of aggregates of fluorescent molecules (DY1) and 2D semiconductor MoS2 monolayers are fabricated. Photoluminescence spectra of DY1/MoS2 show quenching of the DY1 emission and enhancement of the MoS2 emission, indicating a strong electronic interaction between these two materials. Nanoscopic mappings of the light-induced contact potential difference changes rule out the CT process at the interface. Using femtosecond transient absorption spectroscopy, the rapid interfacial ET process from DY1 aggregates to MoS2 and a fourfold extension of the exciton lifetime in MoS2 are elucidated. These results suggest that the integration of 2D inorganic semiconductors with fluorescent molecules can provide versatile approaches to engineer the physical characteristics of materials for both fundamental studies and novel optoelectronic device applications.
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Affiliation(s)
- Soyeong Kwon
- Department of PhysicsEwha Womans UniversitySeoul03760Korea
| | - Dong Yeun Jeong
- Division of Chemical Engineering and Materials Scienceand Graduate Program for System Health Science and EngineeringEwha Womans UniversitySeoul03760Korea
| | - Chengyun Hong
- Center for Integrated Nanostructure Physics (CINAP)Institute for Basic Science (IBS)Suwon16419Korea
- Department of Energy ScienceSungkyunkwan UniversitySuwon16419Korea
| | - Saejin Oh
- Center for Integrated Nanostructure Physics (CINAP)Institute for Basic Science (IBS)Suwon16419Korea
- Department of Energy ScienceSungkyunkwan UniversitySuwon16419Korea
| | - Jungeun Song
- Department of PhysicsEwha Womans UniversitySeoul03760Korea
| | - Soo Ho Choi
- Center for Integrated Nanostructure Physics (CINAP)Institute for Basic Science (IBS)Suwon16419Korea
| | - Ki Kang Kim
- Center for Integrated Nanostructure Physics (CINAP)Institute for Basic Science (IBS)Suwon16419Korea
- Department of Energy ScienceSungkyunkwan UniversitySuwon16419Korea
| | - Seokhyun Yoon
- Department of PhysicsEwha Womans UniversitySeoul03760Korea
| | - Taeyoung Choi
- Department of PhysicsEwha Womans UniversitySeoul03760Korea
| | - Ki‐Ju Yee
- Department of PhysicsChungnam National UniversityDaejeon34134Korea
| | - Ji‐Hee Kim
- Center for Integrated Nanostructure Physics (CINAP)Institute for Basic Science (IBS)Suwon16419Korea
- Department of Energy ScienceSungkyunkwan UniversitySuwon16419Korea
| | - Youngmin You
- Division of Chemical Engineering and Materials Scienceand Graduate Program for System Health Science and EngineeringEwha Womans UniversitySeoul03760Korea
| | - Dong‐Wook Kim
- Department of PhysicsEwha Womans UniversitySeoul03760Korea
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Chen M, Xu L, Wang J, Liu B, Wang K, Qi Q, Zhu Y, Yang X, Chai W, Yang P, Zhang W, Liu J, Jia G, Zhang S, Du J. Fe-Ion-Catalyzed Synthesis of CdSe/Cu Core/Shell Nanowires. Inorg Chem 2021; 60:2614-2622. [DOI: 10.1021/acs.inorgchem.0c03488] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mao Chen
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Lekai Xu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, No. 1 Beiertiao, Zhongguancun, Beijing, 100109, PR China
| | - Jiao Wang
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Baokun Liu
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Kun Wang
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Qi Qi
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Yaqiong Zhu
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Xin Yang
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Wencui Chai
- School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, PR China
| | - Peixu Yang
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Weidong Zhang
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Jinhui Liu
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Guanwei Jia
- School of Physics and Electronics, Henan University, Kaifeng 475004, PR China
| | - Shaojun Zhang
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
| | - Jiang Du
- Henan Province Industrial Technology Research Institute of Resources and Materials, Zhengzhou University, Zhengzhou 450001, PR China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, PR China
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