2018
DOI: 10.1021/acs.chemmater.8b02100
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Anion Exchange in Cesium Lead Halide Perovskite Nanocrystals and Thin Films Using Trimethylsilyl Halide Reagents

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Cited by 112 publications
(169 citation statements)
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“…TlBr nanocrystals were synthesized by adding TMSBr to a hot reaction mixture of Tl(CH 3 COO) 3 or Tl(CH 3 COO) in OA, OAm and ODE. TlBr results from a metathesis reaction and the spontaneous decomposition of TlBr 3 to TlBr, trueTl(CH3COO)3+3(CH3)3SiBrTlBr3+3CH3COO-Si(CH3)3 trueTlBr3TlBr+Br2 …”
Section: Resultsmentioning
confidence: 99%
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“…TlBr nanocrystals were synthesized by adding TMSBr to a hot reaction mixture of Tl(CH 3 COO) 3 or Tl(CH 3 COO) in OA, OAm and ODE. TlBr results from a metathesis reaction and the spontaneous decomposition of TlBr 3 to TlBr, trueTl(CH3COO)3+3(CH3)3SiBrTlBr3+3CH3COO-Si(CH3)3 trueTlBr3TlBr+Br2 …”
Section: Resultsmentioning
confidence: 99%
“…TMSBr was explored as the halide source because it is known to provide a relatively fast reaction rate compared to other halides due to the strong affinity of TMS for acetate …”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Compared to most of the reported methods, this one is facile, fast and environmentally friendly. [16][17][18][19][20][21][22][23][24] The halide precursors do not need any solvent to be dissolved in, they can be separated by a simple ltration and, most relevant, the reaction can be carried out at room temperature and under ambient conditions. The products were characterized by means of X-ray diffraction, UV absorbance, photoluminescence and high resolution TEM.…”
Section: Resultsmentioning
confidence: 99%
“…[7][8][9][10][11][12][13][14][15] However, appealing post-synthetic strategies rely on the anion exchange of the prepared colloidal nano-dispersions, as it has been previously demonstrated on CsPbBr 3 . [16][17][18][19][20][21][22] One of the most common routes for anion exchange in lead halide nanocrystal was reported by Nedelcu et al and makes use of Schlenk line where lead halogens and OAmX as anion sources were mixed with octadecene (ODE) in neck ask and kept under vacuum at 120 C. The dried oleic acid (OA) and oleylamine (OLA) were injected at 120 C under N 2 ow. 17 While this approach is highly suitable to provide a full anion exchange, it would be desirable to provide more easy and facile routes to perform such anion modication on lead halide nanocrystals and also provide evidence of such exchange on mixed cation compositions.…”
Section: Introductionmentioning
confidence: 99%