Atom Probe Tomography Study of Gettering in High-Performance Multicrystalline Silicon
Atom Probe Tomography Study of Gettering in High-Performance Multicrystalline Silicon
复制标题
高性能多晶硅吸杂的原子探针断层扫描研究
DOI:
10.1109/jphotov.2020.2974795
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发表时间:
2020
影响因子:
3
通讯作者:
Tweddle D
中科院分区:
文献类型:
--
作者:
Tweddle D
During the production of high-performance multicrystalline silicon (HPMC-Si) solar cells, gettering occurs inherently during the formation of an emitter. The material benefits with an increase in minority carrier lifetime from the external gettering of impurities into the diffused layer. However, depending on the thermal budget and parameters of the emitter diffusion, as well as the specific material properties, the process can also be detrimental in terms of increased recombination activity of specific crystallographic defects. Thus, it is important to understand the root causes behind the change in recombination activity of defects following gettering. Here, we present a correlative atom probe tomography study of grain boundaries in both p- and n-type HPMC-Si before and after gettering. The presence of nitrogen was found to directly correlate with the increase in recombination activity at grain boundaries. Additionally, an estimation of the atom probe tomography detection limit for transition metals in silicon is made and found to be greater than known impurity levels in commercial HPMC-Si.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
F. Heinz;L. E. Mundt;W. Warta;M. Schubert
通讯作者:
M. Schubert
DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
S. Pizzini;A. Sandrinelli;M. Beghi;D. Narducci;F. Allegretti;S. Torchio;G. Fabbri;G. Ottaviani;F. Demartin;A. Fusi
通讯作者:
A. Fusi
影响因子:
3
作者:
F. Schindler;B. Michl;A. Kleiber;H. Steinkemper;J. Schon;W. Kwapil;P. Krenckel;S. Riepe;W. Warta;M. Schubert
通讯作者:
M. Schubert
影响因子:
9.4
作者:
T. Lehmann;C. Reimann;E. Meissner;J. Friedrich
通讯作者:
T. Lehmann;C. Reimann;E. Meissner;J. Friedrich
影响因子:
4.7
作者:
Tweddle D
通讯作者:
Tweddle D