Direct measurement of conduction miniband structure in superlattice by visible-light photoemission spectroscopy
Direct measurement of conduction miniband structure in superlattice by visible-light photoemission spectroscopy
复制标题
可见光光电子能谱直接测量超晶格中的传导微带结构
DOI:
10.1109/pvsc.2014.6925534
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Toru Ujihara
中科院分区:
文献类型:
--
作者:
Fumiaki Ichihashi;Daisuke Shimura;Kenji Nishitani;Tatsuki Kawaguchi;Masashi Kuwahara;Takao Ito;Shingo Harada;Hiroyasu Katsuno;Masaki Tagawa;Toru Ujihara
We have proposed a novel angle-resolved photoemission spectroscopy to measure the conduction electrons emitted from a surface with negative electron affinity state. We call this method visible-light photoemission spectroscopy (VPS). In the present study, the conduction miniband structure formed in a superlattice was evaluated by the VPS method. As a result, we succeeded to obtain the dispersion of the miniband. In addition, the effective mass of the miniband was quantitatively determined from the observed dispersion. Therefore, we believe that VPS is a quite powerful tool for the evaluation of intermediate-band solar cells.
DOI:
10.1109/pvsc.2013.6744149
发表时间:
2013
期刊:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC)
影响因子:
--
作者:
F. Ichihashi;D. Shimura;K. Nishitani;M. Kuwahara;T. Ito;S. Harada;M. Tagawa;T. Ujihara
通讯作者:
T. Ujihara
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
D.Shimura;F.Ichihashi;K.Nishitani;S.Harada;T.Ito;M.Kuwahara;M.Matsunami;S.Kimura;M.Tagawa;T.Ujihara
通讯作者:
T.Ujihara