The production of stable thin-film photovoltaic devices requires tight control of temperature uniformity of the glass substrates during the vacuum deposition process. As a first step towards developing an optimized control system for maintaining thermal uniformity as the substrates traverse multiple stations during the deposition process, a finite element thermal model of a single deposition station has been developed. The model couples cavity radiation processes with conduction within the graphite sources and the substrate itself. The effect of adjustable parameters such as radiation shielding, addition of a radiation spreader and varying power distribution among the radiation lamps has been studied. It is concluded that while radiation shielding substantially improves the uniformity, it cannot bring the temperature variation down to the very low levels necessary for producing stable devices. Addition of a radiation spreader improves the uniformity. Seeking and applying the optimum power distribution among the radiation lamps results in more incremental gain in uniformity but a change in lamp configuration is required for attaining the desired uniformity levels.
Skip Nav Destination
ASME 2004 International Mechanical Engineering Congress and Exposition
November 13–19, 2004
Anaheim, California, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
0-7918-4711-X
PROCEEDINGS PAPER
Control of Temperature Uniformity During the Manufacture of Stable Thin-Film Photovoltaic Devices
Chetan P. Malhotra,
Chetan P. Malhotra
University of Colorado
Search for other works by this author on:
Robert A. Enzenroth
Robert A. Enzenroth
Colorado State University
Search for other works by this author on:
Chetan P. Malhotra
University of Colorado
Roop L. Mahajan
University of Colorado
W. S. Sampath
Colorado State University
Kurt L. Barth
Colorado State University
Robert A. Enzenroth
Colorado State University
Paper No:
IMECE2004-61331, pp. 547-555; 9 pages
Published Online:
March 24, 2008
Citation
Malhotra, CP, Mahajan, RL, Sampath, WS, Barth, KL, & Enzenroth, RA. "Control of Temperature Uniformity During the Manufacture of Stable Thin-Film Photovoltaic Devices." Proceedings of the ASME 2004 International Mechanical Engineering Congress and Exposition. Heat Transfer, Volume 3. Anaheim, California, USA. November 13–19, 2004. pp. 547-555. ASME. https://doi.org/10.1115/IMECE2004-61331
Download citation file:
6
Views
0
Citations
Related Proceedings Papers
Related Articles
High Knudsen Number Physical Vapor Deposition: Predicting Deposition Rates and Uniformity
J. Heat Transfer (November,2007)
A Modular Ceramic Cavity-Receiver for High-Temperature High-Concentration Solar Applications
J. Sol. Energy Eng (February,2012)
Combined Radiation and Conduction in Glass Foams
J. Heat Transfer (December,2002)
Related Chapters
Insulating Properties of W-Doped Ga2O3 Films Grown on Si Substrate for Low-K Applications
International Conference on Advanced Computer Theory and Engineering, 4th (ICACTE 2011)
Radiation
Thermal Management of Microelectronic Equipment, Second Edition
Radiation
Thermal Management of Microelectronic Equipment