A mini Interactive Web Course on
CHALCOGENIDE GLASSES

January 17 - March 21, 2011

Course Information

This course was taught during the Spring semester of 2011. It provided a broad overview of chalcogenide glasses, which are technologically important, high-tech sub-class of inorganic glasses that exhibit numerous unusual properties not found in common (oxide) glasses. The course focused on distinctive characteristics (structure and properties) of chalcogenide glasses and how they lead to broad range of existing and potential applications in photonics, electronics, ionics, etc.

Instructors

Professor Yong Gyu Choi, IMI-NFG Sabbatical Faculty (on leave from Korea Aerospace University, South Korea)
Professor Himanshu Jain, Materials Science and Engineering, Lehigh University

Text

"Non-Crystalline Chalcogenides" by Mihai A. Popescu
Published by Kluwer Academic Publishers (ISBN: 1-4020-0359-5)
Useful but not necessary to purchase.

Main Topics

• Fundamental aspects of chalcogenide glass: brief history, fabrication methods
• Characteristic properties
• Glass forming systems
• Structure of main systems
• Background of relevant applications such as thin film solar cells, thermoelectric devices, electrical switching devices, solid electrolytes, infrared optics, etc.
• Photonics applications e.g. as IR transmission medium for sensors, lasers, amplifiers; nonlinear optical devices; memory; optical waveguides; photoresists; etc.
• Electronics applications e.g. electrical memory based on phase-change; switching devices
• Ionics applications e.g. fast ion conductors for battery and fuel cell, grayscale lithography, switching devices

Schedule and Lecture Topics

	Lecture Topic All lectures will be presented by Prof. Yong Gyu Choi  (unless noted otherwise)	Slides/Course Notes	video archive
lecture 1 01.19.11	Syllabus Introduction Characteristics and fabrication	pdf> pdf>	video>
lecture 2 01.24.11	Structure 1: glass formation and structure models	pdf>	video>
Lecture 3 01.26.11	Structure 2: structure of some representative ChGs Homework Assignment 1:	pdf> Answers>	video>
Lecture 4 01.31.11	Property 1: physico-chemical properties	pdf>	video>
lecture 5 02.07.11	Property 2: photo-induced effects	pdf>	video>
lecture 6 02.09.11	Photonics applications 1- part a: IR transmitting medium (slides 1-14)	pdf>	part a: video>
lecture 7 02.14.11	Photonics applications 1- part b: IR transmitting medium (slides 15-27) Homework Assignment 2:	same as above Answers>	part b: video>
lecture 8 02.16.11	Photonics applications 2: ion-doped ChGs	pdf>	video>
lecture 9 02.21.11	Photonics applications 3: optical nonlinearity in ChGs	pdf>	live lecture video> re-recorded video>
lecture 10 02.23.11	Photonics applications 4: waveguide fabrication	pdf>	video>
lecture 11 02.28.11	Photonics applications 5: photoresists (Prof. H. Jain) Lithography References: "Glasses for Lithography", Jain, Vlcek> "Chalcogenide glass e-beam and photoresists for ultra thin grey scale patterning", Kovalskiy et al>	pdf>	video>
lecture 12 03.02.11	Ionics applications 1: Models of Ionic Conduction in Chalcogenide Glasses. (Prof S. Martin)	pdf>	video>
lecture 13 (part 1) 03.07.11	Ionics applications 2 part 1: Survey of Fast Ion Conduction on Chalcogenide Glasses. (Prof S. Martin)	pdf>	video>
lecture 14 03.09.11	Electronics applications 1: phase change memory	pdf>	video>
lecture 15 03.21.11	Electronics applications 2: switching devices	pdf>	video>
lecture 13 (part 2) 03.30.11*	Ionics applications 2 part 2 (continuation of lecture 13 from 03.07.11): Survey of Fast Ion Conduction on Chalcogenide Glasses. (Prof S. Martin)	pdf> (same notes as 03.07.11)	video>

* subject to change/revisions(last revised: 03.30.11)

Contact Information

Instructors:
Professor Yong Gyu Choi (ykc310@lehigh.edu)
IMI-NFG, Lehigh University. Sabbatical Faculty (currently on leave from Korea Aerospace University, South Korea).
Professor Himanshu Jain (h.jain@lehigh.edu)
IMI-NFG and Dept. of Materials Science and Engineering, Lehigh University
Professor Steve Martin (swmartin@iastate.edu)
Depart. of Material Science and Engineering

Technical Support:
David White (WDAVID@clemson.edu)
Clemson University

Course Support:
Dr. William Heffner (wrh304@lehigh.edu)
Associate Director, IMI-NFG, Lehigh Unversity
Sarah Wing (srw208@lehigh.edu)
Coordinator, IMI-NFG, Lehigh University