Structural changes during vapor-phase deposition of polycrystalline-PbI2 films

Controlled growth of PbI2 nanoplates for rapid preparation of CH3NH3PbI3 in planar perovskite solar cells

“…Thermally evaporated PbI 2 layer shows the above described nanoplates on TiO 2 /FTO/glass substrate, while layers obtained from both PbBr 2 and PbCl 2 form compact layers with grain sizes of several hundred nanometers on the same substrate. Presumably, the formation of nanoplates in PbI 2 film is associated with its unique anisotropic layered structure . As shown in Fig.…”

“…As shown in Fig. (a), PbI 2 comprises of hexagonally close packed I–Pb–I monolayers stacking along c ‐axis which are separated by a van‐der‐Waals gap in between . This layered structure results in faster growth in the basal plane (lateral direction) compared to the c ‐axis (vertical direction), as the crystalline facets tend to develop low‐index planes to minimize the surface energy .…”

Synthesis of PbI2 nanoparticles by laser ablation in methanol

“…The reported results revealed particle size, shape and distribution that affecting dependence on the preparation technique [7,8]. Combined Langmuir-Blodgett and molecular deposition technique, surfactant-assisted hydrothermal method, colloidal, sol-gel, vapor deposition, reverse micelles are some methods; adopted to prepare PbI 2 nanoparticles [5,[9][10][11]. To date, synthesis of pbI 2 nanoparticles by laser ablation in liquid has not been reported.…”

Structure‐Tuned Lead Halide Perovskite Nanocrystals

“…The basis of our synthesis is the preparation of colloidal PbI 2 NCs. Since the original report of Sandroff et al on the quantization effects in PbI 2 small clusters in films and solution, these NCs have been prepared by various methods that include Langmuir–Blodgett techniques, zeolite cages, silica films, copolymer films, colloidal solutions, vapor deposition, reverse micelles, or surfactant‐assisted hydrothermal routes . Control of the size of colloidally stable PbI 2 NCs remains a challenge.…”