Resonance ultrasonic vibrations for crack detection in photovoltaic silicon wafers

被引:72
作者
Dallas, W. [1 ]
Polupan, O. [1 ]
Ostapenko, S. [1 ]
机构
[1] Univ S Florida, Nanomat & Nanomfg Res Ctr, Tampa, FL 33620 USA
关键词
photovoltaics; crack detection; micro crack; solar cell; defect; wafer; silicon; resonance; acoustics;
D O I
10.1088/0957-0233/18/3/038
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The resonance ultrasonic vibrations (RUV) technique is adapted for non-destructive crack detection in full-size silicon wafers for solar cells. The RUV methodology relies on deviation of the frequency response curve of a wafer, ultrasonically stimulated via vacuum coupled piezoelectric transducer, with a periphery crack versus regular non-cracked wafers as detected by a periphery mounted acoustic probe. Crack detection is illustrated on a set of cast wafers. We performed vibration mode identification on square-shaped production-grade Si wafers and confirmed by finite element analyses. The modelling was accomplished for the different modes of the resonance vibrations of a wafer with a periphery crack to assess the sensitivity of the RUV method relative to crack length and crack location.
引用
收藏
页码:852 / 858
页数:7
相关论文
共 8 条
  • [1] [Anonymous], 2004, Proceedings of PV Solar conference
  • [2] Behnken H., 2003, 3 WORLD C PHOT EN CO
  • [3] Crack detection and analyses using resonance ultrasonic vibrations in full-size crystalline silicon wafers
    Belyaev, A
    Polupan, O
    Dallas, W
    Ostapenko, S
    Hess, D
    Wohlgemuth, J
    [J]. APPLIED PHYSICS LETTERS, 2006, 88 (11)
  • [4] BELYAEV A, 2006, SEMICOND SCI TECH, V21, P40260
  • [5] Photographic surveying of minority carrier diffusion length in polycrystalline silicon solar cells by electroluminescence
    Fuyuki, T
    Kondo, H
    Yamazaki, T
    Takahashi, Y
    Uraoka, Y
    [J]. APPLIED PHYSICS LETTERS, 2005, 86 (26) : 1 - 3
  • [6] Rueland E., 2005, PROC 20 EU PVSEC BAR, P3242
  • [7] SOPORI B, 2006, 16 WORKSH CRYST SIL
  • [8] Spatially resolved series resistance of silicon solar cells obtained from luminescence imaging
    Trupke, T.
    Pink, E.
    Bardos, R. A.
    Abbott, M. D.
    [J]. APPLIED PHYSICS LETTERS, 2007, 90 (09)