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DTSTART:20250330T030000
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DTSTAMP:20260424T040529Z
UID:1755847800@ist.ac.at
DTSTART:20250822T093000
DTEND:20250822T103000
DESCRIPTION:Speaker: Seungho Lee\nhosted by Hryhoriy Polshyn\nAbstract: Wel
 l-defined powder precursors are important for the rational design of cryst
 alline inorganic solids with controlled microstructures and functional pro
 perties. Such powders can be prepared by nanoparticles through surfactant-
 assisted synthesis (or colloidal synthesis) that provides precise control 
 over size\, shape\, composition\, and surface chemistry of nanoparticles. 
 These tailored nanoparticles further act as building blocks for 3D assembl
 ies\, exhibiting collective nanoscale properties and enabling tailored mic
 rostructures in inorganic solids. However\, the programmable design of cry
 stalline inorganic solids from nanoparticle-based precursors remains limit
 ed\, due to a lack of fundamental understanding of both the synthesis of n
 anoparticles and their conversion into macroscopic solids. Furthermore\, c
 reating three-dimensional nanoparticle assemblies often requires multi-ste
 p post-synthetic treatments\, which can limit their scalability and reprod
 ucibility.In this thesis\, I demonstrate key synthetic parameters governin
 g the formation of desired nanostructures\, especially metal/semiconductor
  core/shell nanoparticles which are potential precursors for engineering c
 omposition\, crystal structure\, and defects of final solids. Then\, I inv
 estigate their transformative pathways to unveil atomic-scale structural a
 nd chemical changes that can occur during heat treatment of the NP-based p
 recursors. Building on this insight\, I further demonstrate the possibilit
 y of a rapid and scalable nanoparticle assembly in the synthesis by avoidi
 ng complex post-synthetic steps. Finally\, I investigate how nanoparticle-
 based precursors influence the formation and resulting properties of cryst
 alline inorganic solids\, highlighting the potential of employing NP-based
  precursors for the rational design of bulk inorganic solids.
LOCATION:Sunstone Bldg / Ground floor / Big Seminar Room B (I23.EG.102) and
  Zoom\, ISTA
ORGANIZER:
SUMMARY:Seungho Lee: Thesis Defense: Nanoparticle-Based Precursors toward A
 dvanced Crystalline Inorganic Solids
URL:https://talks-calendar.ista.ac.at/events/5909
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