Title :
Theoretical simulation and experimental study of phosphorus concentration profiles in laser doped crystalline silicon solar cells
Author :
Tao, Li ; Chunlan, Zhou ; Zhengang, Liu ; Wenjing, Wang
Author_Institution :
Key Lab. of Solar Thermal Energy & Photovoltaic Syst., CAS, Beijing, China
Abstract :
In this paper, a nonlinear numerical model of laser heating on crystalline silicon solar cells has been established based on the thermodynamic method. According to the non steady temperature field gained by finite difference method, variation characteristics of melt front as a function of time are described during laser melting of crystalline silicon. Considering the features of liquid phase diffusion of phosphorus atoms in melting silicon, theoretical simulation for phosphorus diffusion behavior and the evolution of phosphorus concentration profiles at various times are achieved by the image method. The theoretical phosphorus concentration profile is in good agreement with the corresponding experimental ECV data.
Keywords :
finite difference methods; laser materials processing; melting; nonlinear equations; silicon; solar cells; ECV data; finite difference method; laser doped crystalline silicon solar cells; laser heating; nonlinear numerical model; nonsteady temperature field; phosphorus atom liquid phase diffusion; phosphorus concentration profiles; silicon melting; thermodynamic method; Annealing; Chemical lasers; Laser modes; Laser theory; Photovoltaic cells; Physics; Silicon; concentration profile; crystalline silicon solar cells; laser doped; melt front;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5988678
