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He J, Liu W, Hu Z, Wang X, Liu J, Yin Z, Xu Z, Li H, Deng Z, Zou J, Song K, Zhao D, Liu Y. Well-Dispersed CsPbBr 3@TiO 2 Heterostructure Nanocrystals from Asymmetric to Symmetric. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2406783. [PMID: 39206610 DOI: 10.1002/smll.202406783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2024] [Revised: 08/14/2024] [Indexed: 09/04/2024]
Abstract
Metal halide perovskites (MHPs) have undergone rapid development in the fields of solar cells, light diodes, lasing, photodetectors, etc. However, the MHPs still face significant challenges, such as poor stability and heterocompositing with other functional materials at the single nanoparticle level. Herein, the successful synthesis of well-dispersed CsPbBr3@TiO2 heterostructure nanocrystals (NCs) is reported, in which each heterostructure NC has only one CsPbBr3 with a precise anatase TiO2 coating ranging from asymmetric to symmetric. Due to the protection of anatase TiO2, CsPbBr3 shows dramatically improved chemical stability and photostability. More significantly, the synthesized CsPbBr3@TiO2 heterostructure NCs form a type II heterojunction, which strongly promoted efficient photogenerated carrier separation between anatase TiO2 and CsPbBr3, hence leading to improved optoelectronic activity. This study provides a robust avenue for synthesizing stable and highly efficient MHPs@metal oxide heterostructure NCs, paving the way for the practical application of all inorganic perovskites.
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Affiliation(s)
- Jiazhen He
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Wanli Liu
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Zhiyi Hu
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Xiaoqian Wang
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Jinfeng Liu
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Zhiwen Yin
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Zhewei Xu
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Hang Li
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Zhao Deng
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Ji Zou
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Kang Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Key Laboratory of Lake and Watershed Science for Water Security, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Dongyuan Zhao
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P. R. China
| | - Yong Liu
- International School of Materials Science and Engineering (ISMSE), State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
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2
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Yin Q, Xu R, Wang X, Li M, Huang X, Chen Z, Ma T, Xie A, Chen J, Zeng H. Precise Laser-Modulated Anion Exchange on Ultraflexible Perovskite Films for Multicolor Patterns. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39189509 DOI: 10.1021/acsami.4c09606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Lead halide perovskite anion exchange reactions tend to be spontaneous and rapid. To achieve precise control of anion exchange and modulate the bandgaps of perovskites to meet the demands in full-color displays, a laser-induced liquid-phase anion exchange method is developed in this paper. CsPbBr3 perovskites embedded in a polymer matrix are converted to CsPb(BrxCl1-x)3 and CsPb(BrxI1-x)3 perovskites, realizing the shift from green fluorescence to blue and red fluorescence. By changing the laser parameters, the anion exchange extent and luminescence wavelength are precisely tuned, with the maximum tuning wavelength range of 431-696 nm. Due to the focusing properties of the laser, the spatial position of anion exchange can be precisely controlled, which is significant for realizing fast and accurate patterning without masks. Based on this method, blue patterns with different light-emitting wavelengths are fabricated. RGB three-color patterns on a single perovskite composite film are successfully prepared by further replacement of halogen ions. More importantly, the polymer matrix provides ultraflexibility and good stability for the films; even if the composite films are arbitrarily folded or repeatedly bent, they can still maintain good luminous intensity. This method will show great potential in the field of flexible, full-color displays.
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Affiliation(s)
- Qianxi Yin
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Rongrong Xu
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiaoting Wang
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Mulin Li
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xianliang Huang
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- School of Physics, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ziyi Chen
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- School of Physics, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Teng Ma
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- School of Physics, Nanjing University of Science and Technology, Nanjing 210094, China
| | - An Xie
- Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, P. R. China
| | - Jun Chen
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Haibo Zeng
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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3
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Khurana S, Yadav P, Natesan P, Hassan MS, Pradhan DK, Sapra S. Prevention of ion migration in lead halide perovskites upon plugging the anion vacancies with PbSe islands. Chem Commun (Camb) 2024; 60:6031-6034. [PMID: 38775062 DOI: 10.1039/d4cc01280a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
To circumvent the issue of halide ion exchange in perovskites, we have decorated CsPbBr3 and CsPbI3 nanocrystals with different sized PbSe nanoparticles and demonstrated that it effectively prevents anion exchange reaction in CsPbBr3/CsPbI3 nanoheterostructures (NHSs) as a consequence of halide vacancy passivation by the more covalent selenide anion.
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Affiliation(s)
- Swati Khurana
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Priyesh Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Priyadharsini Natesan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Md Samim Hassan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Deepak Kumar Pradhan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Sameer Sapra
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
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Lian H, Zhang W, Zou R, Gu S, Kuang R, Zhu Y, Zhang X, Ma CG, Wang J, Li Y. Aqueous-Based Inorganic Colloidal Halide Perovskites Customizing Liquid Scintillators. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304743. [PMID: 37722107 DOI: 10.1002/adma.202304743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 09/02/2023] [Indexed: 09/20/2023]
Abstract
Compared to solid scintillators and organic liquid scintillators, aqueous-based liquid scintillators (AbLS) have more superiority in highly flexible scalability, yet are now limited by their low light yield (≈100 photons MeV-1 ). Here, aqueous-based inorganic colloidal halide perovskites with high photoluminescence quantum yield (PLQY) of three primary color luminescence up to 88.1% (red), 96% (green), and 81.8% (blue) are respectively synthesized, and a new generation of colloidal perovskite-mediated AbLS (PAbLS) with light yield increased in comparison with the commercial scintillator AbLS is fabricated. This paper exhibits that the excellent PLQY and colloidal dispersion of halide perovskites benefit from poly(ethylene glycol) modification and this modification ensures the vacancy inhibition and formation of defect-free surfaces in an aqueous solution. Moreover, their high luminescent emission can be maintained for 100 days at low temperatures, and such modification also promises the heat-to-cold customization of operating temperature even in ice below 0 °C. Finally, depending on the light yield of around 3058 and 8037 photons MeV-1 at room temperature and low temperature, PAbLS with shape/size scalability exhibit their robust radiation hardness (dose rate as high as 23 mGy s-1 ) and conceptual application potential in high-energy ray radiation detection from every angle of 360°.
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Affiliation(s)
- Huiwang Lian
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wenxia Zhang
- School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
| | - Rui Zou
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Simin Gu
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Rongyi Kuang
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yunfei Zhu
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xinyue Zhang
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, 510182, China
- Institute of Light+X Science and Technology, Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, China
| | - Chong-Geng Ma
- School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
| | - Jing Wang
- Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yang Li
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, 510182, China
- Institute of Light+X Science and Technology, Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, China
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5
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Getachew G, Wibrianto A, Rasal AS, Batu Dirersa W, Chang JY. Metal halide perovskite nanocrystals for biomedical engineering: Recent advances, challenges, and future perspectives. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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6
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Tabassum M, Zia Q, Li J, Khawar MT, Aslam S, Su L. FAPbBr 3 Perovskite Nanocrystals Embedded in Poly(L-lactic acid) Nanofibrous Membranes for Enhanced Air and Water Stability. MEMBRANES 2023; 13:membranes13030279. [PMID: 36984666 PMCID: PMC10055916 DOI: 10.3390/membranes13030279] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/16/2023] [Accepted: 02/21/2023] [Indexed: 06/12/2023]
Abstract
Formamidinium lead bromide (FAPbBr3) nanocrystals have emerged as a powerful platform for optoelectronic applications due to their pure green photoluminescence (PL). However, their low colloidal stability under storage and operation reduces the potential use of FAPbBr3 perovskite nanocrystals (PeNCs) in various applications. In this study, we prepared the poly(L-lactic acid) (PLLA) nanofibrous membrane embedded with FAPbBr3 perovskite nanocrystals by electrospinning the perovskite and PLLA precursor solution. This is a simple and low-cost technique for the direct confinement of nano-sized functional materials in the continuous polymer nanofibres. PLLA as a polymer matrix provided a high surface framework to fully encapsulate the perovskite NCs. In addition, we found that FAPbBr3 PeNCs crystallize spontaneously inside the PLLA nanofibre. The resultant PLLA-FAPbBr3 nanofibrous membranes were stable and remained in the water for about 45 days without any evident decomposition. The results of this research support the idea of new possibilities for the production of air-stable FAPbBr3 PeNCs by forming a composite with PLLA polymer. The authors believe this study is a new milestone in the development of highly stable metal halide perovskite-based nanofibres, which allow for potential use in lasers, waveguides, and flexible energy harvesters.
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Affiliation(s)
- Madeeha Tabassum
- School of Engineering and Materials Science, Queen Mary, University of London, London E1 4NS, UK
| | - Qasim Zia
- School of Engineering and Materials Science, Queen Mary, University of London, London E1 4NS, UK
| | - Jiashen Li
- Department of Materials, The University of Manchester, Oxford Rd., Manchester M13 9PL, UK
| | - Muhammad Tauseef Khawar
- Department of Clothing, National Textile University Faisalabad, Faisalabad, Punjab 37610, Pakistan
| | - Sameen Aslam
- Garments Technology Department, Punjab Tianjin University of Technology, Lahore 53720, Pakistan
| | - Lei Su
- School of Engineering and Materials Science, Queen Mary, University of London, London E1 4NS, UK
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7
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Manna M, Debnath T, Bhandari S. Chemical coupling of halide perovskite nanocrystals with a metal quinolate complex for white light generation. Chem Commun (Camb) 2023; 59:1469-1472. [PMID: 36651639 DOI: 10.1039/d2cc06458h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Herein we report the construction of a white light emitting (WLE) nanocomposite by chemically coupling halide perovskite nanocrystals (HPNCs; e.g., orange-emitting Mn2+-doped CsPbCl3) with a metal quinolate complex (e.g., a cyan-emitting calcium quinolate (CaQ2) complex) while keeping their distinct features. The surface chloride of HPNCs coupled with the Ca-metal center of the CaQ2 complex without altering the morphology, size, and dopant oxidation state of the HPNCs and provided additional environmental stability of the WLE nanocomposite. The photostable solid WLE nanocomposite displays chromaticity of (0.33, 0.32), color rendering index (CRI) of 80, correlated color temperature (CCT) of 5483 K, and quantum yield of 54.1%. This clearly indicates their bright WLE nature with properties close to those of bright midday sunlight. The current work will bring new surface chemistry between HPNCs and inorganic complexes and new paradigm toward advanced light emitting applications.
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Affiliation(s)
- Mihir Manna
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Tushar Debnath
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Satyapriya Bhandari
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal-734013, India.
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8
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Diyali S, Manna M, Mahato S, Kumar V, Roy Choudhury A, Biswas B, Bhandari S. Hybrid Lead Bromide Perovskite Single Crystals Coupled with a Zinc(II) Complex for White Light Emission. J Phys Chem Lett 2022; 13:10759-10766. [PMID: 36374525 DOI: 10.1021/acs.jpclett.2c02876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Herein we report the fabrication of green emitting hybrid lead bromide perovskite single crystals (HLBPSCs), their anion exchange mediated tunable yellow luminescence and thereby their coupling ability with blue emitting inorganic complex leading to generation of a photostable white light emission, with properties close to bright day sunlight. The partial anion exchange reaction to green emitting HLBPSCs led to formation of yellow emitting anion exchanged HLBPSCs─which are termed as AE-HLBPSCs herein. Then, AE-HLBPSCs were chemically combined with blue emitting Zn-aspirin complex to produce white light with a photoluminescence quantum yield (PLQY) of 47.7%. The solid form of the white light emitting (WLE) composite (followed by coating with poly methyl methacrylate─PMMA) showed color coordinates of (0.34, 0.33), color rendering index of 76 and correlated color temperature of 5282 K. Furthermore, the PMMA coated inorganic complex coupled AE-HLBPSCs showed the preservation of their WLE nature and luminescence stability in their solid form.
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Affiliation(s)
- Sangharaj Diyali
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal 734013, India
| | - Mihir Manna
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Shreya Mahato
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal 734013, India
| | - Vierandra Kumar
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli PO, Mohali, Punjab 140306, India
| | - Angshuman Roy Choudhury
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Sector 81, Knowledge City, S. A. S. Nagar, Manauli PO, Mohali, Punjab 140306, India
| | - Bhaskar Biswas
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal 734013, India
| | - Satyapriya Bhandari
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal 734013, India
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9
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Cirignano M, Fiorito S, Barelli M, Aglieri V, De Franco M, Bahmani Jalali H, Toma A, Di Stasio F. Layer-by-layer assembly of CsPbX 3 nanocrystals into large-scale homostructures. NANOSCALE 2022; 14:15525-15532. [PMID: 36239340 PMCID: PMC9612634 DOI: 10.1039/d2nr04169c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Advances in surface chemistry of CsPbX3 (where X = Cl, Br or I) nanocrystals (NCs) enabled the replacement of native chain ligands in solution. However, there are few reports on ligand exchange carried out on CsPbX3 NC thin films. Solid-state ligand exchange can improve the photoluminescence quantum yield (PLQY) of the film and promote a change in solubility of the solid surface, thus enabling multiple depositions of subsequent nanocrystal layers. Fine control of nanocrystal film thickness is of importance for light-emitting diodes (LEDs), solar cells and lasers alike. The thickness of the emissive material film is crucial to assure the copious recombination of charges injected into a LED, resulting in bright electroluminescence. Similarly, solar cell performance is determined by the amount of absorbed light, and hence the light absorber content in the device. In this study, we demonstrate a layer-by-layer (LbL) assembly method that results in high quality films, whose thicknesses can be finely controlled. In the solid state, we replaced oleic acid and oleylamine ligands with didodecyldimethylammonium bromide or ammonium thiocyanate that enhance the PLQY of the film. The exchange is carried out through a spin-coating technique, using solvents with strategic polarity to avoid NC dissolution or damage. Exploiting this technique, the deposition of various layers results in considerable thickening of films as proven by atomic force microscope measurements. The ease of handling of our combined process (i.e. ligand exchange and layer-by-layer deposition) enables thickness control over CsPbX3 NC films with applicability to other perovskite nanomaterials paving the way for a large variety of layer permutations.
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Affiliation(s)
- Matilde Cirignano
- Dipartimento di Chimica e Chimica Industriale, Università, Degli Studi di Genova, Via Dodecaneso 31, 16146, Genoa, Italy
- Photonic Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy.
| | - Sergio Fiorito
- Photonic Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy.
| | - Matteo Barelli
- Photonic Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy.
| | - Vincenzo Aglieri
- Clean Room Facility, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy
| | - Manuela De Franco
- Dipartimento di Chimica e Chimica Industriale, Università, Degli Studi di Genova, Via Dodecaneso 31, 16146, Genoa, Italy
- Photonic Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy.
| | - Houman Bahmani Jalali
- Photonic Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy.
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy
| | - Andrea Toma
- Clean Room Facility, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy
| | - Francesco Di Stasio
- Photonic Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genoa, Italy.
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10
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Jin X, Ma K, Gao H. Tunable Luminescence and Enhanced Polar Solvent Resistance of Perovskite Nanocrystals Achieved by Surface-Initiated Photopolymerization. J Am Chem Soc 2022; 144:20411-20420. [DOI: 10.1021/jacs.2c08622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiuyu Jin
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Kangling Ma
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Haifeng Gao
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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11
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Avugadda S, Castelli A, Dhanabalan B, Fernandez T, Silvestri N, Collantes C, Baranov D, Imran M, Manna L, Pellegrino T, Arciniegas MP. Highly Emitting Perovskite Nanocrystals with 2-Year Stability in Water through an Automated Polymer Encapsulation for Bioimaging. ACS NANO 2022; 16:13657-13666. [PMID: 35914190 PMCID: PMC9527756 DOI: 10.1021/acsnano.2c01556] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 07/26/2022] [Indexed: 05/29/2023]
Abstract
Lead-based halide perovskite nanocrystals are highly luminescent materials, but their sensitivity to humid environments and their biotoxicity are still important challenges to solve. Here, we develop a stepwise approach to encapsulate representative CsPbBr3 nanocrystals into water-soluble polymer capsules. We show that our protocol can be extended to nanocrystals coated with different ligands, enabling an outstanding high photoluminescence quantum yield of ∼60% that is preserved over two years in capsules dispersed in water. We demonstrate that this on-bench strategy can be implemented on an automated platform with slight modifications, granting access to a faster and more reproducible fabrication process. Also, we reveal that the capsules can be exploited as photoluminescent probes for cell imaging at a dose as low as 0.3 μgPb/mL that is well below the toxicity threshold for Pb and Cs ions. Our approach contributes to expanding significantly the fields of applications of these luminescent materials including biology and biomedicine.
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Affiliation(s)
- Sahitya
Kumar Avugadda
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Andrea Castelli
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Balaji Dhanabalan
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Tamara Fernandez
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Niccolo Silvestri
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Cynthia Collantes
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM), Universitat
Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain
| | - Dmitry Baranov
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Muhammad Imran
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Teresa Pellegrino
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Milena P. Arciniegas
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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12
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Sun J, Li T, Dong L, Hua Q, Chang S, Zhong H, Zhang L, Shan C, Pan C. Excitation-dependent perovskite/polymer films for ultraviolet visualization. Sci Bull (Beijing) 2022; 67:1755-1762. [PMID: 36546061 DOI: 10.1016/j.scib.2022.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/01/2022] [Accepted: 08/01/2022] [Indexed: 01/07/2023]
Abstract
Ultraviolet (UV) visualization has extensive applications in military and civil fields such as security monitoring, space communication, and wearable equipment for health monitoring in the internet of things (IoT). Due to their remarkable optoelectronic features, perovskite materials are regarded as promising candidates for UV light detecting and imaging. Herein, we report for the first time the excitation-dependent perovskite/polymer films with dynamically tunable fluorescence ranging from green to magenta by changing the UV excitation from 260 to 380 nm. And they still render dynamic multi-color UV light imaging with different polymer matrixes, halogen ratios, and cations of perovskite materials. The mechanism of its fluorescence change is related to the chloride vacancies in perovskite materials. A patterned multi-color ultraviolet visualization pad is also demonstrated for visible conversion of the UV region. This technique may provide a universal strategy for information securities, UV visualizations, and dynamic multi-color displays in the IoT.
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Affiliation(s)
- Junlu Sun
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China; Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials Physics (Ministry of Education), School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Tianshu Li
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Lin Dong
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials Physics (Ministry of Education), School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China.
| | - Qilin Hua
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China
| | - Shuai Chang
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Haizheng Zhong
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Lijun Zhang
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130012, China.
| | - Chongxin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials Physics (Ministry of Education), School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China.
| | - Caofeng Pan
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China.
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13
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Cueto C, Hu W, Ribbe A, Bolduc K, Emrick T. Polystyrene‐based Macromolecular Ammonium Halides for Tuning Color and Exchange Kinetics of Perovskite Nanocrystals. Angew Chem Int Ed Engl 2022; 61:e202207126. [DOI: 10.1002/anie.202207126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Christopher Cueto
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Weiguo Hu
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Alexander Ribbe
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Kimberly Bolduc
- Department of Chemistry University of Massachusetts Physical Sciences Building 690 North Pleasant St Amherst MA 01003 USA
| | - Todd Emrick
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
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14
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Shi X, Li Z, Cao M, Rao Z, Zhao X, Gong X. Fast HCl-free Synthesis of Lead-free Rb 2ZrCl 6: xSb 3+ Perovskites. Inorg Chem 2022; 61:14095-14101. [PMID: 35994396 DOI: 10.1021/acs.inorgchem.2c02140] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Due to the toxicity and instability issues of lead halide perovskites, lead-free perovskites have recently emerged as a viable alternative. However, significant optical band gaps of lead-free perovskites exert influence on their luminescent properties. Fortunately, the addition of dopants becomes an efficacious solution. The current widely utilized methods for synthesizing perovskites almost require high temperatures, a long period, and atmosphere protection, which cost more energy and resources. In this paper, we report that Rb2ZrCl6:xSb3+ perovskite phosphors can be easily prepared by a wet grinding approach at room temperature, which is a more efficient and facile process. Due to the self-trapped excitons of the host structure and Sb3+ ions, the produced samples display blue-white and orange fluorescence under UV lamp irradiation at 254 and 365 nm, respectively. In the photoluminescence spectrum, the doped perovskite exhibits an emission peak at 630 nm under excitation at 365 nm. Importantly, the prepared phosphors have tunable emissions related to the excitation wavelength. In addition, our produced powders show remarkable stability at room temperature, laying the foundations for this approach to be widely used in perovskite production.
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Affiliation(s)
- Xinyu Shi
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Zhilin Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Mengyan Cao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Zhihui Rao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Xiujian Zhao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Xiao Gong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
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15
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Panda S, Soni A, Gupta V, Niranjan R, Panda D. PVDF-directed synthesis, stability and anion exchange of cesium lead bromide nanocrystals. Methods Appl Fluoresc 2022; 10. [PMID: 35961300 DOI: 10.1088/2050-6120/ac896b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 08/12/2022] [Indexed: 11/12/2022]
Abstract
Photoluminescent perovskite nanocrystals are mostly used along with base materials such as polymers for material processing and large-scale production purpose. However, the role of polymer in crystal structure engineering and thereby dictating the emission properties of lead halide perovskite nanocrystals is poorly understood. First, we have developed a polymer-directed antisolvent method for synthesis of halide perovskite crystals at room temperature. The thermodynamic stabilities of crystals drive the formation of perovskite composite crystal of orthorhombic Cs4PbBr6 and monoclinic CsPbBr3. Surprisingly, hydrophobic polyvinylidene fluoride (PVDF) can reduce the size of perovskite crystals to nano dimensions even at room temperature. On the other hand, perovskite nanocrystals, CsPbBr3 synthesized by modified hot-injection method undergo rapid encapsulation in PVDF matrices. The size of the encapsulated nanocrystal in PVDF matrices ranges in 88 ± 32 nm. Three types of radiative recombination are predominantly operative in nanocrystals-doped polymer- surface defect caused radiative recombination (0.6 - 3 ns), exciton recombination (3 - 15 ns), and shallow trap assisted recombination (10 - 50 ns). The interface created at nanocrystal and polymer plays a decisive role in populating the shallow trap states in perovskite-polymer nanocomposite. These nanocrystals have been shown to undergo fast halide exchange in aqueous hydroiodic acid solution and possess remarkable enhancement of water-/photo-stability. This research would pave way for their greater use in hydrogen production and light-emitting devices.
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Affiliation(s)
- Suvadeep Panda
- Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology, Bahadurpur, Harbanshganj, Jais, Amethi, Rae Bareli, Rae Bareli, Uttar Pradesh, 229304, INDIA
| | - Amritansh Soni
- Rajiv Gandhi Institute of Petroleum Technology, Bahadurpur, Harbanshganj, Jais, Amethi, Rae Bareli, Rae Bareli, Uttar Pradesh, 229304, INDIA
| | - Vidhu Gupta
- Rajiv Gandhi Institute of Petroleum Technology, Bahadurpur, Harbanshganj, Jais, Amethi, Rae Bareli, Rae Bareli, Uttar Pradesh, 229304, INDIA
| | - Raghvendra Niranjan
- Ewing Christian College , University of Allahabad, Gaughat, Prayagraj, Allahabad, Uttar Pradesh, 211002, INDIA
| | - Debashis Panda
- Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology, Bahadurpur, Harbanshganj, Jais, Amethi, Rae Bareli, Rae Bareli, 229304, INDIA
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16
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Cueto C, Hu W, Ribbe A, Bolduc K, Emrick T. Polystyrene‐based Macromolecular Ammonium Halides for Tuning Color and Exchange Kinetics of Perovskite Nanocrystals. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christopher Cueto
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Weiguo Hu
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Alexander Ribbe
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
| | - Kimberly Bolduc
- Department of Chemistry University of Massachusetts Physical Sciences Building 690 North Pleasant St Amherst MA 01003 USA
| | - Todd Emrick
- Department of Polymer Science & Engineering University of Massachusetts Conte Center for Polymer Research 120 Governors Dr Amherst MA 01003 USA
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17
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DuBose JT, Kamat PV. Energy Versus Electron Transfer: Managing Excited-State Interactions in Perovskite Nanocrystal-Molecular Hybrids. Chem Rev 2022; 122:12475-12494. [PMID: 35793168 DOI: 10.1021/acs.chemrev.2c00172] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Energy and electron transfer processes in light harvesting assemblies dictate the outcome of the overall light energy conversion process. Halide perovskite nanocrystals such as CsPbBr3 with relatively high emission yield and strong light absorption can transfer singlet and triplet energy to surface-bound acceptor molecules. They can also induce photocatalytic reduction and oxidation by selectively transferring electrons and holes across the nanocrystal interface. This perspective discusses key factors dictating these excited-state pathways in perovskite nanocrystals and the fundamental differences between energy and electron transfer processes. Spectroscopic methods to decipher between these complex photoinduced pathways are presented. A basic understanding of the fundamental differences between the two excited deactivation processes (charge and energy transfer) and ways to modulate them should enable design of more efficient light harvesting assemblies with semiconductor and molecular systems.
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Affiliation(s)
- Jeffrey T DuBose
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Prashant V Kamat
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States.,Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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18
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Bahmani Jalali H, Pianetti A, Zito J, Imran M, Campolucci M, Ivanov YP, Locardi F, Infante I, Divitini G, Brovelli S, Manna L, Di Stasio F. Cesium Manganese Bromide Nanocrystal Sensitizers for Broadband Vis-to-NIR Downshifting. ACS ENERGY LETTERS 2022; 7:1850-1858. [PMID: 35601630 PMCID: PMC9112327 DOI: 10.1021/acsenergylett.2c00311] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/19/2022] [Indexed: 05/02/2023]
Abstract
Simultaneously achieving both broad absorption and sharp emission in the near-infrared (NIR) is challenging. Coupling of an efficient absorber such as lead halide perovskites to lanthanide emissive species is a promising way to meet the demands for visible-to-NIR spectral conversion. However, lead-based perovskite sensitizers suffer from relatively narrow absorption in the visible range, poor stability, and toxicity. Herein, we introduce a downshifting configuration based on lead-free cesium manganese bromide nanocrystals acting as broad visible absorbers coupled to sharp emission in the NIR-I and NIR-II spectral regions. To achieve this, we synthesized CsMnBr3 and Cs3MnBr5 nanocrystals and attempted to dope them with a series of lanthanides, achieving success only with CsMnBr3. The correlation of the lanthanide emission to the CsMnBr3 visible absorption was confirmed with steady-state excitation spectra and time-resolved photoluminescence measurements, whereas the mechanism of downconversion from the CsMnBr3 matrix to the lanthanides was understood by density functional theory calculations. This study shows that lead-free metal halides with an appropriate phase are effective sensitizers for lanthanides and offer a route to efficient downshifting applications.
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Affiliation(s)
- Houman Bahmani Jalali
- Photonic
Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Andrea Pianetti
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano-Bicocca, Via R. Cozzi 55, 20125 Milano, Italy
| | - Juliette Zito
- Department
of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, 16146 Genova, Italy
| | - Muhammad Imran
- Department
of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Marta Campolucci
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, 16146 Genova, Italy
| | - Yurii P. Ivanov
- Electron
Spectroscopy and Nanoscopy, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Federico Locardi
- Dipartimento
di Chimica e Chimica Industriale, Università
degli Studi di Genova, 16146 Genova, Italy
| | - Ivan Infante
- Department
of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Giorgio Divitini
- Electron
Spectroscopy and Nanoscopy, Istituto Italiano
di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Sergio Brovelli
- Dipartimento
di Scienza dei Materiali, Università
degli Studi di Milano-Bicocca, Via R. Cozzi 55, 20125 Milano, Italy
| | - Liberato Manna
- Department
of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Francesco Di Stasio
- Photonic
Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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19
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Liu L, Pan K, Xu K, Zhang JZ. Impact of Molecular Ligands in the Synthesis and Transformation between Metal Halide Perovskite Quantum Dots and Magic Sized Clusters. ACS PHYSICAL CHEMISTRY AU 2022; 2:156-170. [PMID: 36855569 PMCID: PMC9718301 DOI: 10.1021/acsphyschemau.1c00047] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Metal halide perovskite quantum dots (PQDs) and perovskite magic sized clusters (PMSCs) exhibit interesting size- and composition-dependent optoelectronic properties that are promising for emerging applications including photovoltaic solar cells and light-emitting diodes (LEDs). Much work has focused on developing new synthesis strategies to improve their structural stability and property tunability. In this paper, we review recent progress in the synthesis and characterization of PQDs and PMSCs, with a focus on the impact of different molecular ligands on their surface passivation and interconversion. Moreover, the effect of capping ligands on ion exchange during synthesis and doping is discussed. Finally, we present some perspectives on challenges and opportunities in fundamental studies and potential applications of both PQDs and PMSCs.
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Affiliation(s)
- Li Liu
- Research Institute
of Agricultural Quality Standards and Testing Technology, Hubei Academy of Agricultural Science, Wuhan 430064, P.R. China,Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States
| | - Keliang Pan
- Hubei Institute
of Geosciences, Wuhan 430034, P.R. China,Hubei Key Laboratory
of Resource and Ecological Environment Geology, Wuhan 430034, P.R. China,
| | - Ke Xu
- Multiscale Crystal Materials Research Center, Shenzhen
Institute of Advanced Technology, Chinese
Academy of Sciences, Shenzhen 518055, P.R. China
| | - Jin Z. Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States,
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20
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Shen J, Meng N, Chen J, Zhu Y, Yang X, Jia Y, Li C. Poly acrylic acid-b-polystyrene -passivated CsPbBr3 perovskite quantum dots with high photoluminescence quantum yield for light-emitting diodes. Chem Commun (Camb) 2022; 58:4235-4238. [DOI: 10.1039/d2cc00051b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We reported a novel strategy for the preparation of CsPbBr3 perovskite quantum dots by polyacrylic acid-b-polystyrene ligands, which exhibited high stability and photoluminescence quantum yields. The fabricated white light-emitting diodesexhibited...
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21
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Zhong Q, Cao M, Zhang Q. Encapsulation of lead halide perovskite nanocrystals (NCs) at the single-particle level: strategies and properties. NANOSCALE 2021; 13:19341-19351. [PMID: 34787165 DOI: 10.1039/d1nr05478c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Lead halide perovskite NCs (APbX3, A = formamidinium (FA), methylammonium (MA) or Cs; X = Cl, Br, I or their mixture) have attracted unprecedented attention due to their excellent photophysical properties and wide application prospects. However, the inherent ionic structure of APbX3 NCs makes them very sensitive to external conditions such as water and oxygen, resulting in poor stability. As a feasible strategy, encapsulation is considered to be effective in improving the stability. In this minireview, we focus on single-particle-level coating, which not only can improve the stability but also maintain the nano effect of the original NCs. This review summarizes the fundamental information on APbX3 NCs and the necessity of single-particle-level coating. Subsequently, a variety of heterostructures at the single-particle level are introduced in detail. Then, their applications are summarized. Moreover, we discuss the challenges and prospects of the single-particle-level heterostructures based on APbX3 NCs.
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Affiliation(s)
- Qixuan Zhong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China.
| | - Muhan Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China.
| | - Qiao Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou 215123, Jiangsu, People's Republic of China.
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22
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Kipkorir A, DuBose J, Cho J, Kamat PV. CsPbBr 3-CdS heterostructure: stabilizing perovskite nanocrystals for photocatalysis. Chem Sci 2021; 12:14815-14825. [PMID: 34820097 PMCID: PMC8597851 DOI: 10.1039/d1sc04305f] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/21/2021] [Indexed: 11/23/2022] Open
Abstract
The instability of cesium lead bromide (CsPbBr3) nanocrystals (NCs) in polar solvents has hampered their use in photocatalysis. We have now succeeded in synthesizing CsPbBr3-CdS heterostructures with improved stability and photocatalytic performance. While the CdS deposition provides solvent stability, the parent CsPbBr3 in the heterostructure harvests photons to generate charge carriers. This heterostructure exhibits longer emission lifetime (τ ave = 47 ns) than pristine CsPbBr3 (τ ave = 7 ns), indicating passivation of surface defects. We employed ethyl viologen (EV2+) as a probe molecule to elucidate excited state interactions and interfacial electron transfer of CsPbBr3-CdS NCs in toluene/ethanol mixed solvent. The electron transfer rate constant as obtained from transient absorption spectroscopy was 9.5 × 1010 s-1 and the quantum efficiency of ethyl viologen reduction (Φ EV+˙) was found to be 8.4% under visible light excitation. The Fermi level equilibration between CsPbBr3-CdS and EV2+/EV+˙ redox couple has allowed us to estimate the apparent conduction band energy of the heterostructure as -0.365 V vs. NHE. The insights into effective utilization of perovskite nanocrystals built around a quasi-type II heterostructures pave the way towards effective utilization in photocatalytic reduction and oxidation processes.
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Affiliation(s)
- Anthony Kipkorir
- Radiation Laboratory, University of Notre Dame Notre Dame Indiana 46556 USA
- Department of Chemistry and Biochemistry, University of Notre Dame Notre Dame Indiana 46556 USA
| | - Jeffrey DuBose
- Radiation Laboratory, University of Notre Dame Notre Dame Indiana 46556 USA
- Department of Chemistry and Biochemistry, University of Notre Dame Notre Dame Indiana 46556 USA
| | - Junsang Cho
- Radiation Laboratory, University of Notre Dame Notre Dame Indiana 46556 USA
| | - Prashant V Kamat
- Radiation Laboratory, University of Notre Dame Notre Dame Indiana 46556 USA
- Department of Chemistry and Biochemistry, University of Notre Dame Notre Dame Indiana 46556 USA
- Department of Chemical and Biomolecular Engineering, University of Notre Dame Notre Dame Indiana 46556 USA
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