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Article
Materials Science, Multidisciplinary
Kun Zheng et al.
Summary: Lead-free vacancy-ordered double perovskites Rb2ZrCl6-xBrx with high PLQY of 90% were successfully synthesized using a wet grinding approach. The bright emissions were found to originate from self-trapped excitons, and thermally activated delayed fluorescence was observed in these materials. Additionally, the optical bandgap of Rb2ZrCl6-xBrx decreases linearly with the increase of x component, and density functional theory calculations confirmed highly localized electronic states in these materials.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jin-Feng Liao et al.
Summary: This study reports a color-tunable phosphor with multiple emissive materials, which can be used in various applications. The phosphor shows high luminescent efficiency and stability, and can emit different colors of light by adjusting the composition, excitation wavelength, temperature, or time gating. It is further applied in multifunctional applications such as luminescent radiometric thermometer, white light emitter, and high-security anti-counterfeit materials.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Hui Peng et al.
Summary: Zero-dimensional metal halides have unique optoelectronic properties, with a synthesized antimony-based metal halide exhibiting broadband orange emission and dual emission peaks attributed to different exciton transitions. The presence of strong anharmonic electron-phonon interaction and singlet and triplet self-trapped excitons contribute to the observed characteristics. Additionally, a stable white-light-emitting diode with high color rendering index was successfully fabricated based on the excellent emission and stability of the metal halide.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jinlin Yin et al.
Summary: This study demonstrates a moisture-resistant metal-organic framework (MOF) consisting of cationic zero-dimensional (0D) metal halide clusters and bridging by adamantanetetracarboxylate. The material exhibits high external quantum efficiency and a color rendering index, and shows chemical and photostability under high humidity conditions.
Article
Chemistry, Multidisciplinary
Liangling Wang et al.
Summary: Alloyed lead-free double perovskites exhibit intense photoluminescence, environmental friendliness, and long-term device operation. The strong electron-phonon coupling plays a crucial role in the formation of self-trapped excitons in lead-free double perovskites. Understanding the strong coupling between longitudinal-optical phonons and electrons is of paramount importance for the design of future optoelectronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Qingxun Guo et al.
Summary: This article provides an overview of recent progress on self-trapped exciton (STEs) emission materials for optoelectronic applications. The relationships between the fundamental emission mechanisms, chemical compositions, and device performances are systematically reviewed. Additionally, the existing challenges and potential development opportunities in this field are discussed.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Hong-Li Xuan et al.
Summary: In this study, chiral materials with circularly polarized luminescence (CPL) were synthesized by self-assembling chiral substances. The obtained chiral hybrids exhibited brilliant orange emission with a peak at 604 nm. These materials demonstrated strong chiral-optical properties and CPL activity, providing a new avenue for developing highly efficient and eco-friendly CPL materials.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jiangkun Chen et al.
Summary: This study describes a novel hydrochromic perovskite crystal that displays switchable luminescence. Mechanistic investigation reveals that the hydrochromic property is due to an energy coupling effect triggered by a phase transformation process, resulting in a color change of emission. This material exhibits ultrafast phase transformation and reversibility, and the emission color can be finely tuned by controlling the dopant concentration.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Yue Zhang et al.
Summary: A 2D SnP2S6 crystal with self-trapped excitons (STEs) emission and excellent photodetection performance has been reported. Carrier dynamics measurements reveal the photophysical process of STEs in the crystal.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Zhi-Zhong Zhang et al.
Summary: A single crystal scintillator, TEA2MnI4, with high transmittance and light yield has been successfully prepared using a local-heating solvent evaporation method. It shows potential for high-resolution X-ray imaging.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Ying-Chen Peng et al.
Summary: In this study, a 0D organic-inorganic metal halide (OIMH) [PPh3H]2[SbCl5] based on trivalent antimony was reported, and its optoelectronic properties were investigated. By controlling the supramolecular interactions and material structure, a three-dimensional (3D) supramolecular framework structure was achieved in this compound. Furthermore, the emission characteristics were analyzed through spectroscopic characterizations and computational methods, revealing tunable singlet/triplet dual-band emission and broad emission properties. This compound remained stable for a long period of time, which may be attributed to its rigid 3D supramolecular framework.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Engineering, Environmental
Liaokuo Gong et al.
Summary: Two zero-dimensional inorganic-organic lead halide hybrids were synthesized in an ionic liquid, showing reversible structural and luminescent transformations. They have the potential application as fluorescent security inks, and the mechanism for the luminescent change provides insight into design of novel stimuli-responsive materials.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Optics
Young-Hoon Kim et al.
Summary: In this study, a one-dopant alloying strategy was employed to enhance electroluminescence efficiencies of metal halide perovskite nanocrystals (PNCs) by reducing defect formation and enhancing charge carrier confinement. Surface-stabilizing agents and bromide vacancy healing agents were utilized to decrease defect density and improve carrier confinement, resulting in significant enhancement in performance.
Article
Materials Science, Multidisciplinary
Chenkun Zhou et al.
Summary: Organic metal halide hybrids (OMHHs) are being extensively studied for their tunable structure and exceptional properties, with recent focus on the development and research of luminescent 0D OMHHs, including synthetic structural control and understanding the structure-property relationship for device integration.
ADVANCED OPTICAL MATERIALS
(2021)
Editorial Material
Nanoscience & Nanotechnology
Giulia Pacchioni
NATURE REVIEWS MATERIALS
(2021)
Review
Chemistry, Physical
Zhipeng Zhang et al.
Summary: The combination of metal halide perovskites and 2D materials has shown significant progress in the field of photovoltaics, but challenges remain in improving performance and stability. Different fabrication techniques provide diversity for their assembly, while also offering opportunities for rational design.
Article
Chemistry, Multidisciplinary
Bing Chen et al.
Summary: This study investigates the double luminescence phenomenon in Sb3+-doped Cs2ZrCl6 perovskite crystals, demonstrating the independent charging processes of host self-trapped excitons and dopant-induced extrinsic self-trapped excitons, with minimal interactions between the two in the zero-dimensional crystal lattice. Dynamic color tuning in Cs2ZrCl6:Sb3+ crystals is achieved through selective excitation of different self-trapped excitons, offering exciting opportunities for constructing multicolor light-emitting devices and encrypting multilevel optical codes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Dongxin Ma et al.
Summary: By using a fluorinated triphenylphosphine oxide additive to control cation diffusion and passivate surfaces, the efficiency and operating lifetimes of perovskite light-emitting diodes have been improved. Although reduced-dimensional perovskites show promise in increasing stability and photoluminescence quantum yield, challenges such as lower EQEs and inferior color purities remain.
Article
Multidisciplinary Sciences
Jason J. Yoo et al.
Summary: Metal halide perovskite solar cells have shown great potential to disrupt the silicon solar cell market with their improved performance, yet still face limitations in light-harvesting due to charge carrier recombination. Efforts to enhance charge carrier management offer a path to increase device performance and approach the theoretical efficiency limit of PSCs.
Article
Optics
Mingming Liu et al.
Summary: Fluoride-treated CsPbBr3 nanocrystals exhibit near unity emission efficiency at temperatures up to 373 K, with constant decay kinetics. The treatment leads to surfaces rich in fluorine with wider energy gaps than the core, suppressing carrier trapping and improving thermal stability. Devices incorporating these nanocrystals show low turn-on voltage and high external quantum efficiency, with nearly 80% efficiency maintained at high temperatures, offering a promising pathway for high-performance light-emitting diodes based on perovskite nanostructures.
Review
Chemistry, Multidisciplinary
Yang Guo et al.
Summary: All-inorganic zero-dimensional (0D) metal halides are composed of isolated metal halide polyhedrons bridged by monovalent alkali metal ions, exhibiting molecule-like electronic configuration and highly attractive optical properties. Compared to their three-dimensional (3D) counterparts, 0D metal halides show characteristic features such as broadband emission and long-term stability. They can be constructed from a diverse range of metal ions and allow high-level impurity doping, offering great structural designability and spectral tunability.
Review
Chemistry, Multidisciplinary
Siqi Sun et al.
Summary: 0D perovskites have drawn considerable attention for their unique properties derived from isolated metal halide octahedra or clusters. This review comprehensively analyzes their crystal and electronic structure, as well as properties like large bandgaps, high exciton binding energy, and broad emission spectra from self-trapped excitons with large Stokes shifts. Additionally, synthetic methods and emerging applications in LEDs, solar cells, and detectors are discussed, providing an outlook for future research.
Article
Multidisciplinary Sciences
Jaeki Jeong et al.
Summary: The research introduces a new concept of using formate anion to suppress defects in metal halide perovskite films and enhance film crystallinity, leading to improved efficiency and stability of solar cells.
Article
Chemistry, Multidisciplinary
Qian Li et al.
Summary: A rare phenomenon of inverse excitation-dependent dual-band emission is achieved in 0D Cs2InBr5, where initial compression leads to blue-shifted STE emission while higher pressure induces a new defect-related localized exciton emission. The high-energy emission from the intrinsic STE state is only observed under low-energy excitation, suggesting excitation-dependent multiple excited states in high-pressure Cs2InBr5.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Susmita Paul et al.
Summary: Metal halide perovskites synthesized via template-based method can produce nanocrystals/microcrystals with defined shape and spatial dimensionality, showing great potential as an alternative to current synthetic techniques.
Article
Multidisciplinary Sciences
Jun-Hua Wei et al.
Summary: This study reports a series of zero-dimensional indium-antimony alloyed halide single crystals with tunable emission, showing bright yellow emission at 320 nm excitation and bright white-light emission at 365 nm excitation. The blue emission associated with BAPP(4+) and the orange emission from inorganic polyhedron function as a pair of complementary colors affording white light. Additionally, the materials exhibit interesting afterglow behavior and excitation-dependent emission property, making them high-performance anti-counterfeiting/information storage materials.
Review
Chemistry, Multidisciplinary
Mingze Li et al.
Summary: This review summarizes the characteristics of zero-dimensional metal halides, including the classification of all-inorganic and organic-inorganic hybrid metal halides, and emphasizes the role of B-site cations in the photoluminescence process. It also discusses the self-trapped excitons model and photoluminescence regulation engineering to explore their unique photoluminescence properties and new application prospects.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Physical
Sujin Lee et al.
CHEMISTRY OF MATERIALS
(2020)
Article
Multidisciplinary Sciences
Siqi Li et al.
NATURE COMMUNICATIONS
(2020)
Article
Chemistry, Multidisciplinary
Liang-Jin Xu et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Materials Science, Multidisciplinary
Mingze Li et al.
ADVANCED OPTICAL MATERIALS
(2020)
Article
Chemistry, Physical
Richeng Lin et al.
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Physical
Anupam Biswas et al.
CHEMISTRY OF MATERIALS
(2019)
Article
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Shunran Li et al.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2019)
Review
Nanoscience & Nanotechnology
Jiajun Luo et al.
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
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Mingze Li et al.
INORGANIC CHEMISTRY
(2019)
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Mingze Li et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
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Materials Science, Multidisciplinary
Binbin Su et al.
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
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Dan Han et al.
JOURNAL OF MATERIALS CHEMISTRY C
(2018)
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Jin-Feng Liao et al.
ACS APPLIED MATERIALS & INTERFACES
(2018)
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Jiajun Luo et al.
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Rinku Saran et al.
ADVANCED OPTICAL MATERIALS
(2017)
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Emma R. Dohner et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2014)
