Intrinsic Self-Trapped Broadband Emission from Zinc Halide-Based Metal-Organic Frameworks

2021 ◽  
Author(s):  
Wen Ma ◽  
Xueling Song ◽  
Jinlin Yin ◽  
Honghan Fei
Keyword(s):  
Metal Organic Frameworks ◽  
Lead Toxicity ◽  
Stability Problems ◽  
Broadband Emission ◽  
Metal Organic ◽  
Halide Perovskites ◽  
Organolead Halide

Organolead halide perovskites are an emerging class of intrinsic self-trapped broadband emitters, but suffer from lead toxicity and stability problems. Herein, we report a series of metal-organic frameworks (MOFs) based...

Formation and Encapsulation of All-Inorganic Lead Halide Perovskites at Room Temperature in Metal–Organic Frameworks

2019 ◽  
Vol 10 (9) ◽  
pp. 2270-2277 ◽  
Author(s):  
Ji-Hyun Cha ◽  
Kyungkyou Noh ◽  
Wenping Yin ◽  
Yongju Lee ◽  
Yongmin Park ◽  
...  
Keyword(s):  
Room Temperature ◽  
Metal Organic Frameworks ◽  
Inorganic Lead ◽  
Metal Organic ◽  
Halide Perovskites ◽  
Lead Halide

scholarly journals Mesoporous perovskite solar cells with Al- and Zn-based metal-organic frameworks

2021 ◽  
Vol 2015 (1) ◽  
pp. 012042
Author(s):  
A.D. Furasova ◽  
G. Hix ◽  
S.V. Makarov ◽  
A. Di Carlo
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Metal Organic Frameworks ◽  
Perovskite Solar Cells ◽  
Metal Organic ◽  
Halide Perovskites ◽  
Photovoltaic Parameters ◽  
Photovoltaic Technology ◽  
Lead Halide ◽  
Thin Film Devices

Abstract The improvement of lead halide perovskites solar cells (PSC) by hydrophobic metal-organic frameworks (MOF) is one of the promising tools for modern photovoltaic technology to achieve stable and efficient thin-film devices. To show the MOF applicability for PSC, we incorporate two types of MOF: NH2-MIL-53(Al) and basolite Z1200 in n-i-p mesoporous MAPbI3 based solar cells that can add 2.2% efficiency by increasing main photovoltaic parameters. The simplicity of the proposed MOF’s integration allows to use and adopt this approach to incorporate other frameworks for thin-film perovskite devices.

Formation and Encapsulation of Lead Halide Perovskites in Lanthanide Metal–Organic Frameworks for Tunable Emission

2020 ◽  
Vol 12 (8) ◽  
pp. 9851-9857 ◽  
Author(s):  
Wei Chen ◽  
Haiyu Liu ◽  
Ruiqing Fan ◽  
Ping Wang ◽  
Tiancheng Sun ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Halide Perovskites ◽  
Lead Halide ◽  
Tunable Emission

Metal-Organic Frameworks

2021 ◽  
Author(s):  
Lars Öhrström ◽  
Francoise M. Amombo Noa
Keyword(s):  
Metal Organic Frameworks ◽  
Metal Organic

Substrate templated synthesis of single-phase and uniform Zr-porphyrin-based metal–organic frameworks

2020 ◽  
Vol 7 (1) ◽  
pp. 221-231
Author(s):  
Seong Won Hong ◽  
Ju Won Paik ◽  
Dongju Seo ◽  
Jae-Min Oh ◽  
Young Kyu Jeong ◽  
...  
Keyword(s):  
Chemical Bath Deposition ◽  
Single Phase ◽  
Metal Organic Frameworks ◽  
Templated Synthesis ◽  
Pore Structures ◽  
Phase Pure ◽  
Metal Organic ◽  
Cbd Method

We successfully demonstrate that the chemical bath deposition (CBD) method is a versatile method for synthesizing phase-pure and uniform MOFs by controlling their nucleation stages and pore structures.

Tuning the Redox Activity of Metal−Organic Frameworks for Enhanced, Selective O2 Binding

2019 ◽  
Author(s):  
Andrew Rosen ◽  
M. Rasel Mian ◽  
Timur Islamoglu ◽  
Haoyuan Chen ◽  
Omar Farha ◽  
...  
Keyword(s):  
Density Functional ◽  
Metal Organic Frameworks ◽  
Redox Activity ◽  
Screening Methods ◽  
Bridging Ligands ◽  
Metal Centers ◽  
Computational Screening ◽  
Open Metal Sites ◽  
Metal Organic ◽  
Unsaturated Metal Sites

<p>Metal−organic frameworks (MOFs) with coordinatively unsaturated metal sites are appealing as adsorbent materials due to their tunable functionality and ability to selectively bind small molecules. Through the use of computational screening methods based on periodic density functional theory, we investigate O<sub>2</sub> and N<sub>2</sub> adsorption at the coordinatively unsaturated metal sites of several MOF families. A variety of design handles are identified that can be used to modify the redox activity of the metal centers, including changing the functionalization of the linkers (replacing oxido donors with sulfido donors), anion exchange of bridging ligands (considering μ-Br<sup>-</sup>, μ-Cl<sup>-</sup>, μ-F<sup>-</sup>, μ-SH<sup>-</sup>, or μ-OH<sup>-</sup> groups), and altering the formal oxidation state of the metal. As a result, we show that it is possible to tune the O<sub>2</sub> affinity at the open metal sites of MOFs for applications involving the strong and/or selective binding of O<sub>2</sub>. In contrast with O<sub>2</sub> adsorption, N<sub>2</sub> adsorption at open metal sites is predicted to be relatively weak across the MOF dataset, with the exception of MOFs containing synthetically elusive V<sup>2+</sup> open metal sites. As one example from the screening study, we predict that exchanging the μ-Cl<sup>-</sup> ligands of M<sub>2</sub>Cl<sub>2</sub>(BBTA) (H<sub>2</sub>BBTA = 1<i>H</i>,5<i>H</i>-benzo(1,2-d:4,5-d′)bistriazole) with μ-OH<sup>-</sup> groups would significantly enhance the strength of O<sub>2</sub> adsorption at the open metal sites without a corresponding increase in the N<sub>2</sub> affinity. Experimental investigation of Co<sub>2</sub>Cl<sub>2</sub>(BBTA) and Co<sub>2</sub>(OH)<sub>2</sub>(BBTA) confirms that the former exhibits only weak physisorption, whereas the latter is capable of chemisorbing O<sub>2</sub> at room temperature. The chemisorption behavior is attributed to the greater electron-donating character of the μ-OH<sup>-</sup><sub> </sub>ligands and the presence of H-bonding interactions between the μ-OH<sup>-</sup> bridging ligands and the O<sub>2</sub> adsorbate.</p>

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