scholarly journals Influence of Hidden Halogen Mobility on Local Structure of CsSn(Cl1-xBrx)3 Mixed-Halide Perovskites by Solid-State NMR

2021 ◽  
Author(s):  
Abhoy Karmakar ◽  
Amit Bhattacharya ◽  
Diganta Sarkar ◽  
Guy Bernard ◽  
Arthur Mar ◽  
...  
Keyword(s):  
Solid State ◽  
Local Structure ◽  
Solid State Nmr ◽  
Lead Free ◽  
Optoelectronic Materials ◽  
Halide Perovskites

Tin halide perovskites are promising candidates for lead-free photovoltaic and optoelectronic materials, but not all of them have been well characterized. It is essential to determine how the bulk photophysical...

scholarly journals 113Cd Solid-State NMR at 21.1 T Reveals the Local Structure and Passivation Mechanism of Cadmium in Hybrid and All-Inorganic Halide Perovskites

2020 ◽  
Vol 5 (9) ◽  
pp. 2964-2971
Author(s):  
Dominik J. Kubicki ◽  
Daniel Prochowicz ◽  
Albert Hofstetter ◽  
Brennan J. Walder ◽  
Lyndon Emsley
Keyword(s):  
Solid State ◽  
Local Structure ◽  
Solid State Nmr ◽  
Halide Perovskites

scholarly journals Local Structure and Dynamics in Methylammonium, Formamidinium, and Cesium Tin(II) Mixed-Halide Perovskites from 119Sn Solid-State NMR

2020 ◽  
Vol 142 (17) ◽  
pp. 7813-7826 ◽  
Author(s):  
Dominik J. Kubicki ◽  
Daniel Prochowicz ◽  
Elodie Salager ◽  
Aydar Rakhmatullin ◽  
Clare P. Grey ◽  
...  
Keyword(s):  
Solid State ◽  
Local Structure ◽  
Solid State Nmr ◽  
Structure And Dynamics ◽  
Halide Perovskites

scholarly journals Colloidal Synthesis of Lead-free Cs2TiBr6-xIx Perovskite Nanocrystals

2021 ◽  
Author(s):  
Shanti Maria Liga ◽  
Gerasimos Konstantatos
Keyword(s):  
Solar Cells ◽  
Power Conversion ◽  
Lead Free ◽  
Colloidal Synthesis ◽  
Optoelectronic Materials ◽  
Perovskite Nanocrystals ◽  
Halide Perovskites ◽  
Conversion Efficiencies

Cesium titanium halide perovskites are novel lead-free optoelectronic materials that have attracted attention in the last two years for their application in solar cells with power conversion efficiencies reaching 3.3%....

scholarly journals Layer-by-Layer Structural Identification of 2D Ruddlesden-Popper Hybrid Lead Iodide Perovskites by Solid-State NMR Spectroscopy

2020 ◽  
Author(s):  
Jeongjae Lee ◽  
Woocheol Lee ◽  
Keehoon Kang ◽  
Takhee Lee ◽  
Sung Keun Lee
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Structural Features ◽  
Layer By Layer ◽  
Lead Iodide ◽  
Materials Properties ◽  
Non Invasive ◽  
Local Bonding ◽  
Halide Perovskites

Application of two-dimensional (2D) organic-inorganic hybrid halide perovskites for optoelectronic devices requires detailed understanding of the local structural features including the Pb-I bonding in the 2D layers and the capping ligand-perovskite interaction. In this study, we show that <sup>1</sup>H and <sup>207</sup>Pb solid-state Nuclear Magnetic Resonance (NMR) spectroscopy can serve as a non-invasive and complementary technique to quantify the composition and to probe the local structural features of 2D Ruddlesden-Popper phase BA<sub>2</sub>MA<i><sub>n</sub></i><sub>-1</sub>Pb<i><sub>n</sub></i>I<sub>3<i>n</i>+1</sub> (<i>n</i>=1-4) with butylammonium (BA) spacers. <sup>207</sup>Pb echo and <sup>1</sup>H-detected <sup>207</sup>Pb→<sup>1</sup>H heteronuclear correlation (HETCOR) experiments enables layer-by-layer structural detection of 2D halide perovskites. We show that the observed correlation between <sup>207</sup>Pb NMR shifts and mean Pb-I bond lengths around each Pb site allows us to probe the local bonding environment of Pb via its <sup>207</sup>Pb NMR shift. We envisage that this technique will be vital for better understanding the materials properties as determined by the local atomistic environments in multi-dimensional halide perovskites.

Local structure of hydroxy–peroxy apatite: A combined XRD, FT-IR, Raman, SEM, and solid-state NMR study

2007 ◽  
Vol 68 (10) ◽  
pp. 1863-1871 ◽  
Author(s):  
Huaguang Yu ◽  
Hailu Zhang ◽  
Xiaomin Wang ◽  
Zhongwei Gu ◽  
Xudong Li ◽  
...  
Keyword(s):  
Solid State ◽  
Local Structure ◽  
Solid State Nmr ◽  
Nmr Study ◽  
Ft Ir
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