scholarly journals Room temperature synthesis and characterization of novel lead-free double perovskite nanocrystals with a stable and broadband emission

2021 ◽  
Vol 9 (1) ◽  
pp. 158-163
Author(s):  
Yingying Tang ◽  
Leyre Gomez ◽  
Marco van der Laan ◽  
Dolf Timmerman ◽  
Victor Sebastian ◽  
...  
Keyword(s):  
Activation Energy ◽  
Low Temperature ◽  
Room Temperature ◽  
Double Perovskite ◽  
Lead Free ◽  
Synthesis And Characterization ◽  
Temperature Synthesis ◽  
Perovskite Nanocrystals ◽  
Broadband Emission

We demonstrated the synthesis of ultra small and stable Cs3BiBr6 nanocrystals, ∼1.5–3 nm, via a room-temperature antisolvent method. Red-shift of bandgap was observed in low temperature PL measurements with an activation energy of ∼41 meV.

scholarly journals Low temperature synthesis and characterization of Mn3O4 nanoparticles

2007 ◽  
Vol 5 (1) ◽  
pp. 169-176 ◽  
Author(s):  
Abdülhadi Baykal ◽  
Yüksel Köseoğlu ◽  
Mehmet Şenel
Keyword(s):  
Particle Size ◽  
Infrared Spectroscopy ◽  
Low Temperature ◽  
Synthesis And Characterization ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
X Ray ◽  
Peak Broadening ◽  
Mn3o4 Nanoparticles

AbstractHeating hydrous manganese (II) hydroxide gel at 85 °C for 12 hours produces Mn3O4 nanoparticles. They were characterized by X-ray powder diffraction (XRD) and infrared spectroscopy (FTIR). The particle size estimated from the SEM and X-ray peak broadening is approximately 32 nm, showing them to be nanocrystalline. EPR measurements confirm a typical Mn2+signal with a highly resolved hyperfine structure.

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