1.2.5. Research at the Christian-Albrechts-Univesität zu Kiel

ELYMAT

We have encountered the ELYMAT (=short for ELectrolYtical MetAl Tracing) before; it was a product of my Siemens years. In Kiel, J. Carstensen vastly enlarged on the theory, enabling new modes, and W. Lippik adopted the machinery to square-shaped multi-crystalline Si wafers as used for solar cells. We also cooperated with Bernd Eichinger and his company GeMeTec that marketed a commercial version of the Elymat. The Elymat was top in characterizing starting materials, i.e. “raw” silicon and with its help wafers of all kinds became more or less perfect. Very satisfying but with the catch that the Elymet eventually outlived its usefulness.

ELYMAT pictures of multi-crystalline Si for solar cells

CELLO

CCello stands for “solar CELl LOcal characterization”. It is a rather sophisticated piece of equipment that allows to measure about any sole cell parameter quantitatively and display it in a map- Bulk lifetime,. Surface recombination velocity, sere resistance – you name it. CELLO was commercialized and some systems were sold. With the decline of the German solar cell industry, CELLO became somewhat obsolete.

CELLO maps

Electrochemistry of Semiconductors

This covers a lot of work like ;

Investigating pore etching in Si, Ge, GaAs, InP, ..
Inventing and developing the “current burst” theory to understand self-organizations phenomenae at semiconductor electrodes
Looking at various applications of pore etching in semiconductors; in particularity the Si anode for the Li ion battery.

All this stuff is well documented in hundreds of publications.

3-dim. pore crystals in InP

	Links to:
		Chapter 2: Chapter 2: Early TEM Work in Stuttgart
		Chapter 3: TEM Work at Cornell University
		Chapter 4: Research at IBM T.J. Watson Research Center
		Chapter 5: Research at Siemens in Munich
		Chapter 6: Research at the Christian-Albrechts-Univesität zu Kiel
		Chapter 7: Hyperscripts and Teaching in Kiel