Inorganic antimony halide hybrids with broad yellow emissions

Tan, Zhe; Hu, Manchen; Niu, Guangda; Hu, Qingsong; Li, Jinghui; Leng, Meiying; Gao, Liang; Tang, Jiang

doi:10.1016/j.scib.2019.05.016

Cited by 35 publications

(20 citation statements)

References 37 publications

(36 reference statements)

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“…This work provides us an inspiration that white light emission might be achieved by manipulating luminescent materials with dual or more emissions. In addition, broadband PL has also been observed in all‐inorganic Sb 3+ ‐based halide such as Rb 7 Sb 3 Cl 16 , [ 57 ] which exhibits yellow luminescence centered at 560 nm with a PLQY of 26% (Figure 11d). Considering the moderate PLQY and excellent stability, authors manufactured a warm‐white LED device based on Rb 7 Sb 3 Cl 16 to demonstrate its promising for lighting applications.…”

Section: Broadened Emission From 0d Metal Halidesmentioning

confidence: 99%

An Overview for Zero‐Dimensional Broadband Emissive Metal‐Halide Single Crystals

Zhou

Liao

Kuang

2021

Advanced Optical Materials

162

132

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The high‐profile candidacy of low‐dimensional metal‐halide single crystals as promising light emitters originates from the intriguing emission properties (e.g., extremely broad luminescence spectra, large Stokes shift, high color rendition), which have enabled the recent great achievements on their application in lighting, artificial illumination, and scintillators. Among the family of low‐dimensional metal‐halide single crystals, zero‐dimensional (0D) materials have been featured in the lowest dimensionality, and as a consequence, strongest quantum confinement, softest lattice, and strongest electron–phonon coupling have been further translated into near‐unity photoluminescence (PL) efficiency with broadband emission. However, as far as it is known, 0D structures are significantly underexplored. Herein, an overview is provided on recent advances of 0D metal‐halide single crystals, with a focus on comprehensive understanding and insightful perspectives behind the photophysical mechanism. Additionally, the challenges and future opportunities currently faced by 0D bulk metal halides are discussed in order to provide a roadmap for the future development of novel materials with versatile optical properties suited for practical applications.

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Section: Broadened Emission From 0d Metal Halidesmentioning

confidence: 99%

An Overview for Zero‐Dimensional Broadband Emissive Metal‐Halide Single Crystals

Zhou

Liao

Kuang

2021

Advanced Optical Materials

162

132

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“…1) The long PL decay of STEs is in the range of hundreds of nanoseconds to microseconds. [ 52,84 ] (Figure 12b) As discussed above, once the free electrons and holes are excited, they will first form excitons and then hop to the self‐trapping states, followed by the radiative recombination. These three steps, especially the hopping process, costs lots of time.…”

Section: Properties Of Ilfp Single Crystalsmentioning

confidence: 97%

“…In 2019, a Rb 7 Sb 3 Cl 16 single crystal was synthesized and showed a broad yellow PL at a wavelength of 560 nm, with a PLQY value of 26% and a broad FWHM of 100 nm, due to the dominant emissive mechanism of STEs. [ 84 ] To broaden the spectrum of a final WLED, a blue Cs 2 SnCl 6 : Bi perovskite was used to mix with the Rb 7 Sb 3 Cl 16 single crystal and then coated on a 365 nm LED chip. Under the exciting of a LED chip, the mix emits bright white light.…”

Section: Applications Of Ilfp Single Crystalsmentioning

confidence: 99%

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All‐Inorganic Lead‐Free Perovskite(‐Like) Single Crystals: Synthesis, Properties, and Applications

et al. 2021

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Due to their nontoxicity, stability, and unique optoelectronic properties, all‐inorganic lead‐free halide semiconductors with perovskite and perovskite‐like structures have successfully emerged as promising optoelectronic materials for various applications, such as solar cells, light‐emitting diodes (LEDs), photodetectors, and X‐ray detectors. To further explore their practical potentials, researchers have paid more attention in all‐inorganic lead‐free perovskite (‐like) (ILFP) single crystals. For these single crystals, the advantages of large sizes, uniform surface morphology, and few defects can facilitate their excellent performances and practical applications. Besides, compared with the low dimensional and polycrystalline ILFP materials, the ILFP single crystals feature enhanced performances, including a longer carrier diffusion length and a larger light absorption coefficient, which attract a great deal of attention. Therefore, focus is on the researching progress of ILFP single crystals and the development of their preparation methods, as well as the novel properties of ILFP single crystals. In addition, the reported applications of ILFP single crystals are proposed to highlight their practical importance. With the perspective of the evolution and challenges, the current limitations of the materials and devices are discussed, followed by an inspirational outlook on their future development directions.

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“…A new kind of lead‐free perovskite variant, Rb 7 Sb 3 Cl 16 , has been reported by Tan et al [ 149 ] The Stokes shift of 175 nm has been observed, which ensures that the emission is the self‐trapped excitonic emission, and a PLQY of 26% have been observed. The excellent stability against ambient and moisture of Rb 7 Sb 3 Cl 16 is found to be due to the formation of Sb 4 O 5 Cl 2 at the surface.…”

Section: Inorganic Halide Perovskite (Ihp)mentioning

confidence: 99%

All‐Inorganic Halide Perovskite Nanocrystals: Future Prospects and Challenges to Go Lead Free

Sarkar

2021

Physica Status Solidi (a)

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Organometallic halide perovskite (OHP) received tremendous attention from the science community for their unprecedented optoelectronic properties, such as large absorption coefficient, long electronÀhole diffusion length, high carrier mobility, and excellent tunability of optical bandgap. [1][2][3][4][5][6] Within 10 years, the efficiency of OHP-based solar cells increases from <10% to 25.5%. [7][8][9][10][11][12] Such unimaginable development speed overcomes all kinds of traditional semiconductors overwhelmingly. Typical OHP materials have the composition ABX 3 , where A is organic cation, methylammonium,B is a tetravalent metal cation (Pb; Sn; Ge); and X is a halide anion (Cl, Br, I). [13][14][15][16] Moreover, the fascinating tunability of absorption and emission wavelength along with high carrier mobility make it a potential candidate for light-emitting diodes (LEDs) and photodetector (PD) applications also. [17][18][19][20][21] Large-area, flexible, and several architectures of solar cells have been fabricated to meet the requirement of device integration and future applications. Despite all the aforementioned advantages, OHP nanocrystal (NC)-based devices face a major challenge in terms of stability. [22][23][24][25][26][27] The OHP NCs are extremely sensitive to oxygen and moisture; therefore, the synthesis and storage require a highly controlled environment. Apart from environment issues, photo-and thermal stability problems are also observed in OHP NCs. [28][29][30] Since past 3À4 years, efforts have been made to overcome stability issues. Stability has been improved by replacing methylammonium (MA) by formamidinium (FA), by integrating OHP with polymers, and using inorganic carrier transport layers instead of organic ones. [23,[30][31][32][33] People have tried to mix CsPbX 3 with OHP to get better device performance. Lee et al. [34] substituted FA þ ion by Cs þ partially and recorded higher stability against photons and humid environment. Saliba et al. [35] have synthesized MA þ , FA þ , and Cs þ mixed-perovskite NCs and observed good stability against ambient atmosphere. Despite all the efforts to stabilize the device, the stability for practical application is yet to be achieved. It is well known that the photo-and thermal stabilities of inorganic materials are much higher than that of the organic materials. Keeping all the issues in mind, Protesescu et al. [36] have synthesized all-inorganic halide perovskite (IHP) CsPbX 3 colloidal NCs. All IHP NCs show very good thermal and photostability, which make them promising replacements of OHP for future device applications. [37][38][39] 2. Inorganic Halide Perovskite (IHP) IHP materials are very closely related to the family of OHP materials, which can be exploited to overcome all the shortcomings of the latter. Investigations have shown that the inorganic monovalent cation Cs þ can satisfy the requirements of the ABX 3 structure, replacing MA þ and FA þ as the A-site ions to form highly thermal stable CsBX 3 perovskites (>350 C). At the same time, CsBX 3...

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Inorganic antimony halide hybrids with broad yellow emissions

Cited by 35 publications

References 37 publications

An Overview for Zero‐Dimensional Broadband Emissive Metal‐Halide Single Crystals

An Overview for Zero‐Dimensional Broadband Emissive Metal‐Halide Single Crystals

All‐Inorganic Lead‐Free Perovskite(‐Like) Single Crystals: Synthesis, Properties, and Applications

All‐Inorganic Halide Perovskite Nanocrystals: Future Prospects and Challenges to Go Lead Free

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