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Ye L, Xu X, He S, Liu Y, Jin Y, Yang YM, Zhu H. Molecular Triplet Sensitization of Monolayer Semiconductors in 2D Organic/Inorganic Hybrid Heterostructures. ACS NANO 2022; 16:12532-12540. [PMID: 35900068 DOI: 10.1021/acsnano.2c03995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Hybrid heterostructures (HSs) comprising organic and two-dimensional (2D) monolayer semiconductors hold great promise for optoelectronic applications. So far, research efforts on organic/2D HSs have exclusively focused on coupling directly photoexcited singlets to monolayer semiconductors. It remains unexplored whether and how the optically dark triplets in organic semiconductors with intriguing properties (e.g., long lifetime) can be implemented for modulating light-matter interactions of hybrid HSs. Herein, we investigate the triplet sensitization of monolayer semiconductors by time-resolved spectroscopic studies on Pd-octaethylporphyrin (PdOEP)/WSe2 and PdOEP/WS2 HSs with type I and type II band alignment, respectively. We show that PdOEP triplets formed in ∼5 ps from intersystem crossing can transfer energy or charge to WSe2 or WS2 monolayers, respectively, leading to a significant photoluminescence enhancement (180%) in WSe2 or long-lived charge separation (>2 ns) in WS2. The triplet transfer occurs in ∼100 ns, which is more than 3 orders of magnitude slower than singlet and can be attributed to its tightly localized nature. Further study of thickness dependence reveals the dictating role of triplet diffusion for triplet sensitization in organic/2D HSs. This study shows the great promise of much less explored molecular triplets on sensitizing 2D monolayer semiconductors and provides the guidance to achieve long-range light harvesting and energy migration in organic/2D HSs for enhanced optoelectronic applications.
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Affiliation(s)
- Lei Ye
- Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 310014, China
| | - Xuehui Xu
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Siyu He
- Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yanping Liu
- Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yizheng Jin
- Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yang Michael Yang
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Haiming Zhu
- Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 310014, China
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Takeshima N, Sugawa K, Tahara H, Jin S, Wakui H, Fukushima M, Tokuda K, Igari S, Kanakubo K, Hayakawa Y, Katoh R, Takase K, Otsuki J. Plasmonic Silver Nanoprism-Induced Emissive Mode Control between Fluorescence and Phosphorescence of a Phosphorescent Palladium Porphyrin Derivative. ACS NANO 2019; 13:13244-13256. [PMID: 31633926 DOI: 10.1021/acsnano.9b06269] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We have succeeded in significantly enhancing fluorescence from intrinsically phosphorescent palladium octaethylporphyrin (Pd-porphyrin) that has an intersystem crossing efficiency of ∼1 by using silver nanoprisms (AgPRs). This was achieved by controlling the wavelength of the localized surface plasmon (LSP) resonance of AgPRs and the distance between the Pd-porphyrin molecules and the AgPR surfaces. In addition to enhancing phosphorescence by spectrally overlapping the phosphorescence band with the LSP resonance band, tuning the LSP wavelength to approximately 520 nm led to the appearance of a new emission band around the wavelength corresponding to the fluorescent radiation. The appearance of fluorescence suggests that the nonradiative energy transfer from the singlet excited state of Pd-porphyrin to the LSP of AgPRs overcame the ultrafast intramolecular intersystem crossing to the triplet excited state, manifesting the spectral properties of the singlet excited state of Pd-porphyrin. The fluorescence nature of this radiation was strongly supported by lifetime measurements of the hybrids of Pd-porphyrin and AgPRs. Furthermore, the dependence of the emissive intensities on the distance between the Pd-porphyrin molecules and the AgPR surfaces showed interesting opposite trends. The fluorescence intensity was increased as the distance between the molecules and the AgPRs was decreased from 10.5 to 1 nm, while the phosphorescence intensity was decreased, which indicates that the LSP-induced fluorescence radiation process from Pd-porphyrin near the AgPRs outweighed the quenching by the AgPRs, even though the phosphorescence significantly suffered quenching.
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Affiliation(s)
- Naoto Takeshima
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Kosuke Sugawa
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Hironobu Tahara
- Graduate School of Engineering , Nagasaki University , Bunkyo, Nagasaki 852-8521 , Japan
| | - Shota Jin
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Hiroki Wakui
- Department of Chemical Biology and Applied Chemistry, College of Engineering , Nihon University , Koriyama , Fukushima 963-8642 , Japan
| | - Misa Fukushima
- Department of Chemical Biology and Applied Chemistry, College of Engineering , Nihon University , Koriyama , Fukushima 963-8642 , Japan
| | - Kyo Tokuda
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Shuto Igari
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Kotomi Kanakubo
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Yutaro Hayakawa
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
| | - Ryuzi Katoh
- Department of Chemical Biology and Applied Chemistry, College of Engineering , Nihon University , Koriyama , Fukushima 963-8642 , Japan
| | - Kouichi Takase
- Department of Physics, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-0062 , Japan
| | - Joe Otsuki
- Department of Materials and Applied Chemistry, College of Science and Technology , Nihon University , Kanda-Surugadai, Chiyoda-ku , Tokyo 101-8308 , Japan
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Kiseleva N, Filatov MA, Oldenburg M, Busko D, Jakoby M, Howard IA, Richards BS, Senge MO, Borisov SM, Turshatov A. The Janus-faced chromophore: a donor–acceptor dyad with dual performance in photon up-conversion. Chem Commun (Camb) 2018; 54:1607-1610. [DOI: 10.1039/c7cc08930a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BODIPY–anthracene dyad shows two “faces” in triplet–triplet annihilation upconversion (TTA-UC) process: behaves either as a triplet sensitizer, or as a singlet emitter, depending on the media polarity.
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Affiliation(s)
- Natalia Kiseleva
- Institute of Microstructure Technology, Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
| | - Mikhail A. Filatov
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
| | - Michael Oldenburg
- Institute of Microstructure Technology, Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
| | - Dmitry Busko
- Institute of Microstructure Technology, Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
| | - Marius Jakoby
- Institute of Microstructure Technology, Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
| | - Ian A. Howard
- Institute of Microstructure Technology, Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
- Light Technology Institute, Karlsruhe Institute of Technology
- 76131 Karlsruhe
| | - Bryce S. Richards
- Institute of Microstructure Technology, Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
- Light Technology Institute, Karlsruhe Institute of Technology
- 76131 Karlsruhe
| | - Mathias O. Senge
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
| | - Sergey M. Borisov
- Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology
- Graz
- Austria
| | - Andrey Turshatov
- Institute of Microstructure Technology, Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
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Muñoz V, Cumsille S, Günther G, Pizarro N, Vega A. Substituent and intramolecular hydrogen-bond effect on the fluorescent emission of two easy-synthesizable fused rigid bicyclic octadiene derivatives. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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