Three-dimensional observation of TiO₂ nanostructures by electron tomography

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• 作者：Young Joon Suh^a ; ¹ ; ^{youngjoon@berkeley.edu} ; Ning Lu^a ; ^{nxl104120@utdallas.edu} ; Seong Yong Park^a ; ² ; ^{sydra.park@samsung.com} ; Tae Hun Lee^a ; ³ ; ^{tynylee@gmail.com} ; Sang Hoon Lee^a ; ⁴ ; ^{shl081000@utdallas.edu} ; Dong Kyu Cha^a ; ⁵ ; ^{goodcdk@gmail.com} ; Min Gun Lee^a ; ^{mingun.lee@utdallas.edu} ; Jie Huang^a ; ^{jxh085100@utdallas.edu} ; Sung-Soo Kim^b ; ^{sskim12@snu.ac.kr} ; Byeong-Hyeok Sohn^b ; ^{bhsohn@snu.ac.kr} ; Geung-Ho Kim^c ; ^{ghokim@kist.re.kr} ; Min Jae Ko^d ; ^{mjko@kist.re.kr} ; Jiyoung Kim^a ; ^{jxk041000@utdallas.edu} ; Moon J. Kim^a ; ^e ; ^{moonkim@utdallas.edu}
• 关键词：TiO2 nanotube ; TiO2 nanocylinder ; TiO2 nanoparticle ; Solar cell ; TEM ; Electron tomography
• 刊名：Micron
• 出版年：2013
• 出版时间：March, 2013
• 年：2013
• 卷：46
• 期：Complete
• 页码：35-42
• 全文大小：1780 K

文摘

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.