◈ Title : Characterization of Molecular Transistors and Nanostructured Optoelectronic Devices
◈ Speaker : Prof.  Takhee Lee (Gwangju Institute of Science and Technology)
◈ Date & Time : Friday, March 11, 2011 (3:00pm ~ 4:30pm) (time is changed)
◈ Place : LG Research Building, Room #105 (classroom is changed)
◈ Host : Prof.  Haewook, Han (Tel. 2240)
◈ Abstract :
 The idea of utilizing functional molecules as the electronic components in future ultrahigh-density electronic devices has generated tremendous attention. Obtaining transistor action  from molecular orbital control has been the outstanding challenge of the field of molecular electronics nearly since its inception. In this talk, I will demonstrate a direct electrostatic modulation of orbitals in a molecular transistor configuration, with both effective gate control and enhanced resonant coupling of the orbitals to the source and drain electrodes [1]. In the second part of the talk, our recent research on the organic non-volatile memories will be discussed [2]. And, if time is allowed, I will also briefly discuss other research results on nanoscale logic circuits [3] and graphene-electrode optoelectronic devices [4].

References:
[1] Hyunwook Song et al., Nature 462, 1039 (2009).
[2] (a) Tae-Wook Kim et al., Adv. Mater. 21, 2497 (2009), Cover picture article;
     (b) Byungjin Cho et al., Adv. Mater. 22, 1228 (2010), Cover picture article;
     (c) Yongsung Ji et al., Adv. Mater. 22, 3071 (2010), Cover picture article;
     (d) Sunghun Song et al., Adv. Mater. 22, 5048 (2010), Cover picture article
[3] Gunho Jo et al., Adv. Mater. 21, 2156 (2009), Cover picture article.
[4] (a) Sangchul Lee et al., Adv. Mater. 23, 100 (2011);
     (b) Yung Ho Kahng et al., Nanotechnology 22, 045706 (2011) Cover article;
     (c) Gunuk Wang et al., Adv. Mater. 23, 755 (2009), Cover picture article.