Three-dimensional observation of TiO2 nanostructures by electron tomography

Young Joon Suh, Ning Lu, Seong Yong Park, Tae Hun Lee, Sang Hoon Lee, Dong Kyu Cha, Min Gun Lee, Jie Huang, Sung Soo Kim, Byeong Hyeok Sohn, Geung Ho Kim, Min Jae Ko, Jiyoung Kim, Moon J. Kim

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Three-dimensional nanostructures of TiO2 related materials including nanotubes, electron acceptor materials in hybrid polymer solar cells, and working electrodes of dye sensitized solar cells (DSSCs) were visualized by electron tomography as well as TEM micrographs. The regions on the wall of TiO2 nanotubes where the streptavidins were attached were elucidated by electron tomogram analysis. The coverage of TiO2 nanotubes by streptavidin was also investigated. The TiO2 nanostructures in hybrid polymer solar cells made by sol-gel and atomic layer deposition (ALD) methods and the morphologies of pores between TiO2 particles in DSSCs were also observed by reconstructed three-dimensional images made by electron tomography.

Original languageEnglish (US)
Pages (from-to)35-42
Number of pages8
StatePublished - Mar 2013


  • Electron tomography
  • Solar cell
  • TEM


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