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Stroyuk O, Raievska O, Zahn DRT, Brabec CJ. Exploring Highly Efficient Broadband Self-Trapped-Exciton Luminophors: from 0D to 3D Materials. CHEM REC 2024; 24:e202300241. [PMID: 37728189 DOI: 10.1002/tcr.202300241] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/08/2023] [Indexed: 09/21/2023]
Abstract
The review summarizes our recent reports on brightly-emitting materials with varied dimensionality (3D, 2D, 0D) synthesized using "green" chemistry and exhibiting highly efficient photoluminescence (PL) originating from self-trapped exciton (STE) states. The discussion starts with 0D emitters, in particular, ternary indium-based colloidal quantum dots, continues with 2D materials, focusing on single-layer polyheptazine carbon nitride, and further evolves to 3D luminophores, the latter exemplified by lead-free double halide perovskites. The review shows the broadband STE PL to be an inherent feature of many materials produced in mild conditions by "green" chemistry, outlining PL features general for these STE emitters and differences in their photophysical properties. The review is concluded with an outlook on the challenges in the field of STE PL emission and the most promising venues for future research.
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Affiliation(s)
- Oleksandr Stroyuk
- Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN), Forschungszentrum Jülich GmbH, 91058, Erlangen, Germany
| | - Oleksandra Raievska
- Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN), Forschungszentrum Jülich GmbH, 91058, Erlangen, Germany
| | - Dietrich R T Zahn
- Semiconductor Physics, Chemnitz University of Technology, 09107, Chemnitz, Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, 09107, Chemnitz, Germany
| | - Christoph J Brabec
- Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN), Forschungszentrum Jülich GmbH, 91058, Erlangen, Germany
- Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058, Erlangen, Germany
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Cao J, Yin Z, Pang Q, Lu Y, Nong X, Zhang JZ. Modulating optical properties and interfacial electron transfer of CsPbBr 3 perovskite nanocrystals via indium ion and chlorine ion co-doping. J Chem Phys 2021; 155:234701. [PMID: 34937354 DOI: 10.1063/5.0076037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
In this work, we demonstrated an in situ approach for doping CsPbBr3 nanocrystals (NCs) with In3+ and Cl- with a ligand-assisted precipitation method at room temperature. The In3+ and Cl- co-doped NCs are characterized by the powder x-ray diffraction patterns, ultraviolet-visible, photoluminescence (PL) spectroscopy, time-resolved PL (TRPL), ultraviolet photoelectron spectroscopy, x-ray photoelectron spectroscopy, and transmission electron microscopy. Based on PL and TRPL results, the non-radiative nature of In3+-doping induced localized impurity states is revealed. Furthermore, the impact of In3+ and Cl- doping on charge transfer (CT) from the NCs to molecular acceptors was investigated and the results indicate that the CT at the interface of NCs can be tuned and promoted by In3+ and Cl- co-doping. This enhanced CT is attributed to the enlarged energy difference between relevant states of the molecular acceptor and the NCs by In3+ and Cl- upon co-doping. This work provides insight into how to control interfacial CT in perovskite NCs, which is important for optoelectronic applications.
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Affiliation(s)
- Jianfei Cao
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, People's Republic of China
| | - Zuodong Yin
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, People's Republic of China
| | - Qi Pang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, People's Republic of China
| | - Yuexi Lu
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, People's Republic of China
| | - Xiuqing Nong
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, People's Republic of China
| | - Jin Zhong Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, USA
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Stroyuk O, Raievska O, Solonenko D, Kupfer C, Osvet A, Batentschuk M, Brabec CJ, Zahn DRT. Spontaneous alloying of ultrasmall non-stoichiometric Ag-In-S and Cu-In-S quantum dots in aqueous colloidal solutions. RSC Adv 2021; 11:21145-21152. [PMID: 35479360 PMCID: PMC9034144 DOI: 10.1039/d1ra03179a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/09/2021] [Indexed: 11/30/2022] Open
Abstract
The effect of spontaneous alloying of non-stoichiometric aqueous Ag–In–S (AIS) and Cu–In–S (CIS) quantum dots (QDs) stabilized by surface glutathione (GSH) complexes was observed spectroscopically due to the phenomenon of band bowing typical for the solid–solution Cu(Ag)–In–S (CAIS) QDs. The alloying was found to occur even at room temperature and can be accelerated by a thermal treatment of colloidal mixtures at around 90 °C with no appreciable differences in the average size observed between alloyed and original individual QDs. An equilibrium between QDs and molecular and clustered metal–GSH complexes, which can serve as “building material” for the new mixed CAIS QDs, during the spontaneous alloying is assumed to be responsible for this behavior of GSH-capped ternary QDs. The alloying effect is expected to be of a general character for different In-based ternary chalcogenides. The effect of spontaneous alloying of aqueous glutathione-capped Ag–In–S and Cu–In–S quantum dots (QDs) into quaternary Cu(Ag)–In–S QDs is reported.![]()
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Affiliation(s)
- Oleksandr Stroyuk
- Forschungszentrum Jülich GmbH, Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN) Erlangen 91058 Germany
| | - Oleksandra Raievska
- L. V. Pysarzhevsky Institute of Physical Chemistry, Nat. Acad. of Science of Ukraine Kyiv 03028 Ukraine.,Semiconductor Physics, Chemnitz University of Technology Chemnitz D-09107 Germany.,Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology Chemnitz D-09107 Germany
| | - Dmytro Solonenko
- Semiconductor Physics, Chemnitz University of Technology Chemnitz D-09107 Germany.,Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology Chemnitz D-09107 Germany
| | - Christian Kupfer
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Materials for Electronics and Energy Technology (i-MEET) Martensstrasse 7 Erlangen 91058 Germany
| | - Andres Osvet
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Materials for Electronics and Energy Technology (i-MEET) Martensstrasse 7 Erlangen 91058 Germany
| | - Miroslaw Batentschuk
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Materials for Electronics and Energy Technology (i-MEET) Martensstrasse 7 Erlangen 91058 Germany
| | - Christoph J Brabec
- Forschungszentrum Jülich GmbH, Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN) Erlangen 91058 Germany .,Friedrich-Alexander-Universität Erlangen-Nürnberg, Materials for Electronics and Energy Technology (i-MEET) Martensstrasse 7 Erlangen 91058 Germany
| | - Dietrich R T Zahn
- Semiconductor Physics, Chemnitz University of Technology Chemnitz D-09107 Germany.,Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology Chemnitz D-09107 Germany
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Dzhagan V, Stroyuk O, Raievska O, Isaieva O, Kapush O, Selyshchev O, Yukhymchuk V, Valakh M, Zahn DRT. Photoinduced Enhancement of Photoluminescence of Colloidal II-VI Nanocrystals in Polymer Matrices. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2565. [PMID: 33371226 PMCID: PMC7766198 DOI: 10.3390/nano10122565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/11/2020] [Accepted: 12/19/2020] [Indexed: 01/03/2023]
Abstract
The environment strongly affects both the fundamental physical properties of semiconductor nanocrystals (NCs) and their functionality. Embedding NCs in polymer matrices is an efficient way to create a desirable NC environment needed for tailoring the NC properties and protecting NCs from adverse environmental factors. Luminescent NCs in optically transparent polymers have been investigated due to their perspective applications in photonics and bio-imaging. Here, we report on the manifestations of photo-induced enhancement of photoluminescence (PL) of aqueous colloidal NCs embedded in water-soluble polymers. Based on the comparison of results obtained on bare and core/shell NCs, NCs of different compounds (CdSe, CdTe, ZnO) as well as different embedding polymers, we conclude on the most probable mechanism of the photoenhancement for these sorts of systems. Contrary to photoenhancement observed earlier as a result of surface photocorrosion, we do not observe any change in peak position and width of the excitonic PL. Therefore, we suggest that the saturation of trap states by accumulated photo-excited charges plays a key role in the observed enhancement of the radiative recombination. This suggestion is supported by the unique temperature dependence of the trap PL band as well as by power-dependent PL measurement.
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Affiliation(s)
- Volodymyr Dzhagan
- V. Lashkaryov Institute of Semiconductors Physics, National Academy of Sciences of Ukraine, 01601 Kyiv, Ukraine; (O.I.); (O.K.); (V.Y.); (M.V.)
- Department of Physics, Taras Shevchenko National University of Kyiv, 64 Volodymyrs’ka St., 01601 Kyiv, Ukraine
| | - Oleksandr Stroyuk
- Forschungszentrum Julich GmbH, Helmholtz-Institut Erlangen Nürnberg für Erneuerbare Energien (HI ERN), Immerwahrstr. 2, 91058 Erlangen, Germany;
| | - Oleksandra Raievska
- Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany; (O.R.); (O.S.); (D.R.T.Z.)
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, 09107 Chemnitz, Germany
- L.V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine, 03028 Kyiv, Ukraine
| | - Oksana Isaieva
- V. Lashkaryov Institute of Semiconductors Physics, National Academy of Sciences of Ukraine, 01601 Kyiv, Ukraine; (O.I.); (O.K.); (V.Y.); (M.V.)
| | - Olga Kapush
- V. Lashkaryov Institute of Semiconductors Physics, National Academy of Sciences of Ukraine, 01601 Kyiv, Ukraine; (O.I.); (O.K.); (V.Y.); (M.V.)
| | - Oleksandr Selyshchev
- Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany; (O.R.); (O.S.); (D.R.T.Z.)
| | - Volodymyr Yukhymchuk
- V. Lashkaryov Institute of Semiconductors Physics, National Academy of Sciences of Ukraine, 01601 Kyiv, Ukraine; (O.I.); (O.K.); (V.Y.); (M.V.)
| | - Mykhailo Valakh
- V. Lashkaryov Institute of Semiconductors Physics, National Academy of Sciences of Ukraine, 01601 Kyiv, Ukraine; (O.I.); (O.K.); (V.Y.); (M.V.)
| | - Dietrich R. T. Zahn
- Semiconductor Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany; (O.R.); (O.S.); (D.R.T.Z.)
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, 09107 Chemnitz, Germany
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Synthesis from aqueous solutions and optical properties of Ag–In–S quantum dots. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01407-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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