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Dear All,

SOLID STATE & STRUCTURAL CHEMISTRY UNIT

INDIAN INSTITUTE OF SCIENCE

BANGALORE  – 560  012

SEMINAR

Speaker: Mr. Titas Pramanik

Title

Electron Tomography: Reconstruction of 3D World.

Date & Time: Thursday 24th January, 2019 at 4.00 PM

Venue:  SSCU AUDITORIUM

Abstract:

Modern day science and technology involves study of crystalline materials with defects and disorders as well as non-crystalline materials in lieu of perfect crystalline materials. Completely different approaches from routine crystallographic methods are needed to determinethe 3D atomic arrangement of these materials. Transmission electron microscopy (TEM) uses two-dimensional (2D) projection images to produce images of crystal defects and dislocations at atomic resolution, however it does not fully represent the underlying 3D structures. The need to obtain higher dimensionality ‘structures’ using lower dimensionality data in different fields of physical and life sciences is necessitated by the advances made by electron tomography techniques in recent years. In this talk, I will discuss various 3D image reconstruction methods and the issues associated with electron tomography. The achievement of atomic resolution inthe 3D structure reconstruction of functional materials will also be addressed.

References:

  1.  J. Frank, Electron Tomography, Springer1999.
  2. P. A. Midgley et al.Ultramicroscopy. 2003, 96, 413.
  3. P. A. Midgley et al.,Nat. Mater., 2009, 6, 271.
  4. T. L. Burnett et al., Ultramicroscopy. 2015, 161: 119.
  5. J. Miao et al.Science, 2016, 353, 6306.

                               ALL ARE CORDIALLY INVITED TO ATTEND

                                                                                         Convener

Bitnami