Thermal conductivity of BCC-ordered mesoporous silica films

Sangwoo Shin, Tae Jung Ha, Hyung Ho Park, Hyung Hee Cho

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Experimental investigations on thermal conductivity of ordered mesoporous silica films (MSFs) are conducted. Ordered MSFs are prepared using Brij-76 block copolymer. Porosities of ordered MSFs are 30%, 40% and 50% with thicknesses of 162 nm, 192 nm and 177 nm, respectively. Pores with size of a few nanometres are distributed along the entire film in body-centered cubic (BCC) phase. Thermal conductivities of BCC-ordered MSFs are measured using the 3ω method at temperature ranging from room temperature (300 K) to 600 K. Thermal conductivities are measured to be up to several factors higher compared with random porous silicates, which is desirable for effective thermal management in integrated circuits.

Original languageEnglish
Article number125404
JournalJournal of Physics D: Applied Physics
Volume42
Issue number12
DOIs
Publication statusPublished - 2009 Sep 21

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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