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用于太阳能电池的多晶硅锭片晶体学特征研究-材料工程
11
Crystallographic Features Study of Polycrystalline Silicon
Ingot for Solar Cells
1 1 1 2
, , ,
( 1 ,
330063;2 , 330031)
1 1 1 2
U Weiping ,WANG Yun , HU Yong ,ZHOU Lang
( 1 School of Aeronautical and Mechanical Engineering,
Nanchang Hangkong University, Nanchang 330063, China;
2 School of Material Engineering, Nanchang University, Nanchang 330031, China)
: :
, ; , 3 ,
3
: ; EBSD; ; ; 3
: T N304052; N16 : A : 2009
Abstract: T he grain boundary character in polycrystalline silicon ingot was studied by electron back
scattered diffraction (EBSD) . The results showed that there was nearly no misorientation in a crystal.
The misorientation was mainly in grain boundaries of polycrystalline silicon ingot. Most grain bounda
ries were observed with large angle grain boundaries. 3 was the chief of these large angle grain
boundaries. Small angle grain boundaries were also observed with a low ratio. Low efficiency solar
cells by polycrystalline silicon ingot might be related to high ratio of 3 .
Key words: polycrystalline silicon; EBSD; misorientation; grain boundary; 3
1954
, 1
,
2mm
, 15mm 15mm,
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