Temperature profiles induced by a stationary CW laser beam in a multi-layer structure: application to solar cell interconnect welding

Journal Article · Tue Jan 01 04:00:00 EST 1985 · Appl. Phys. Commun.; (United States)

OSTI ID:5051089

Oh, J E; Ianno, N J; Ahmed, A U

A three-dimensional heat transfer model for heating of a multilayer structure by a stationary Gaussian CW CO/sub 2/ laser beam is developed and applied to solar cell interconnect welding. This model takes into account the temperature dependence of the thermal conductivity and diffusivity as well as free carrier absorption of the incident beam in the silicon where appropriate. Finally, the theoretical temperature profiles are used to determine the weld spot size and these values are compared to results obtained from a simple welding experiment, where excellent agreement is obtained. 18 references, 13 figures.

• Research Organization: Univ. of Nebraska, Lincoln
• OSTI ID: 5051089
• Journal Information: Appl. Phys. Commun.; (United States), Journal Name: Appl. Phys. Commun.; (United States) Vol. 5:3; ISSN APCOD
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
ABSORPTION
ABSORPTIVITY
CRYSTAL DOPING
DATA
DIRECT ENERGY CONVERTERS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY ABSORPTION
ENERGY TRANSFER
EQUIPMENT
EXPERIMENTAL DATA
FABRICATION
FUNCTIONS
GAS LASERS
GREEN FUNCTION
HEAT TRANSFER
INFORMATION
INFRARED RADIATION
JOINING
LASER WELDING
LASERS
MATHEMATICAL MODELS
NUMERICAL DATA
OPTICAL PROPERTIES
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
RADIATIONS
SEMIMETALS
SILICON
SOLAR CELLS
SOLAR EQUIPMENT
TEMPERATURE DEPENDENCE
TEMPERATURE EFFECTS
THEORETICAL DATA
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
THREE-DIMENSIONAL CALCULATIONS
WELDING