Synthesis and luminescence of ultrasmall CsPbBr3 nanocrystals and CsPbBr3/Cs4PbBr6 composites by one-pot method

Inhibiting lattice distortion of CsPbI3 perovskite quantum dots for solar cells with efficiency over 16.6%

“…12,14,17 During the synthesis of PQDs, long-chain deprotonated oleic acid (oleate anion, OA À ) and protonated oleylamine (oleylammonium cation, OAm + ) ligands are generally applied to substitute the X-and Cs-site vacancies at the PQD surface, respectively, to maintain the colloidal stability of PQDs. 18,19 Meanwhile, these ligands are of great importance in stabilizing the black phase of PQDs because they can terminate the growth of perovskite grains, leading to the negative surface tension of PQDs and thus a tensile surface strain. 20 The surface strain of PQDs can be more readily delivered into the bulk with the flexible ionic bonding nature, thereby ensuring the lattice regularity and photoactivity of PQDs.…”

All-inorganic Mn2+-doped metal halide perovskite crystals for the late-time detection of X-ray afterglow imaging

“…To further explore the fluorescence dynamics of the different emission centres, the fluorescence decay behaviour at RT was investigated. All the luminescence decay curves were well fitted with the following bi-exponential decay function (2): 45,46…”

CsPbBr3 and Cs4PbBr6 perovskite light-emitting diodes using a thermally evaporated host–dopant system

“…Compared to the Pb 4f peak in CsPbBr 3 , the Pb 4f peak of Cs 4 PbBr 6 was located at a lower binding energy (≈0.5 eV), which is similar to the previous result. 62,63…”