Question

求人翻译一下英文

The
excess Seebeck coefficient is attributed to the contribution of the S
band. The n-type samples do not exhibit such contribution because
of the single band nature of the conduction band. The generation
of holes in the S band further enhances the Seebeck coefficient
because of the high effective mass m* of these holes. The
enhancement is by a factor of Nv
2/3, where Nv is the number of
degenerate valleys, Nv is 4 for the L band and increases to 12 for the
S band. Specically, m* ¼ Nv2/3m*b, where m*b is the average (single
valley) effective mass of the degenerate valleys.
Similarly, p-type and n-type PbSe exhibit the same magnitude
of Seebeck coefficients at room temperature, the carrier
concentration for both types is xed at a similar value of 3 
1020 cm3.16 However, the magnitude of the Seebeck coefficient
for the p-type PbSe sample starts to deviate from n-type PbSe,
and becomes much larger with rising temperature. At 923 K, the
Seebeck coefficient reaches +250 mV K1 for p-type PbSe,
whereas by comparison it is only 100 mV K1 for similarly
doped n-type PbSe.

Answer 1

该过量塞贝克系数归因于S的贡献带。在n型的样品没有显示出，因为这样的贡献的导带的单波段性质。发电在S波段孔进一步增强塞贝 系数由于这些孔的高有效质量。该增强是由Nv的一个因素2/3，其中Nv的是数堕落的山谷，Nv为4 L波段，并增加至12对S波段。 特别是，M *¼NV2/3 * b，其中m* b是平均值（单谷）堕落山谷有效质量。同样，p型和n型硒化铅表现出相同的幅度在室温下的塞贝克系数，对于这两种类型的载流子浓度被固定为一个类似的值α31020厘米3.16. 然而，塞贝克系数的幅度为p型的PbSe样品开始从n型硒化铅偏离，和变得与温度上升较大。在923 K，则塞贝克系数达到250毫伏K +1为p型硒化铅，而相比之下，只有100 mV的K +1的同样掺杂n型硒化铅。

Answer 2

的
塞贝克系数是由于过剩的贡献
乐队。因为n型样本不表现出这样的贡献
单一乐队传导带的性质。一代
洞的年代乐队进一步增强了塞贝克系数
因为有效的高质量m *这些漏洞。的
增强的一个因素
2/3,Nv的数量
堕落的山谷,Nv 4 L波段和增加为12
年代的乐队。孟加拉卡莉,m *¼Nv2/3m * b,其中m * b是平均(单
谷)有效质量退化的山谷。
同样,p型和n型硒化铅表现出相同的大小
在室温下的塞贝克系数,承运人
浓度对两种类型xed是类似的值为3
然而,1020年cm3.16塞贝克系数的大小
p型的硒化铅样品开始偏离n型硒化铅,
与不断上升的温度变得更大。在923 K
塞贝克系数达到+ 250 mV K1 p型硒化铅,
而相比之下只有100 mV K1类似
掺杂n型硒化铅。