请材料英语方面大神翻译Because of the low cost and great environmental stability ofPbS renewed focus has recently been cast on it. Previous workreported in the literature, performed decades ago, concludedthat PbS was not an attractive therm

请材料英语方面大神翻译Because of the low cost and great environmental stability ofPbS renewed focus has recently been cast on it. Previous workreported in the literature, performed decades ago, concludedthat PbS was not an attractive therm
请材料英语方面大神翻译
Because of the low cost and great environmental stability of
PbS renewed focus has recently been cast on it. Previous work
reported in the literature, performed decades ago, concluded
that PbS was not an attractive thermoelectric material with a
maximum ZT of \x020.4 at 800 K34 and it was subsequently
neglected in favor of PbTe. Recently, we revisited PbS in view of
the above mentioned hierarchical concepts. We found that PbS
is very amenable to alloying, nanostructuring and in fact
all-scale architecturing and as a result very substantial performance
improvements were achieved. Fig. 7(a) shows a
comparison of the lattice thermal conductivity for both n-type
and p-type PbS. In this system solid solution point defect scattering
alone is effective in lowering the lattice thermal
conductivity at room temperature of PbS by \x0240% and \x0210%
for p-type Pb0.975Na0.025S54 and n-type PbS0.98Cl0.02,34 respectively.
We have subsequently shown that nanostructuring
with Bi2S3 causes additional phonon scattering for an overall
\x0230% reduction of the lattice thermal conductivity for n-type
PbS0.98Cl0.02.34 The introduction of mesostructures causes
additional suppression by an overall \x0240% and \x0225% for p-type
Pb0.975Na0.025S with nanostructured SrS54 and n-type
PbS0.98Cl0.02 with nanostructured Bi2S3,34 respectively. These
techniques push the ZT values at 923 K to achieve \x021.2 and 1.1
for p-type Pb0.975Na0.025S–3%SrS54 and n-type PbS0.98Cl0.02–1%
Bi2S3,34 respectively, see Fig. 7(b).

请材料英语方面大神翻译Because of the low cost and great environmental stability ofPbS renewed focus has recently been cast on it. Previous workreported in the literature, performed decades ago, concludedthat PbS was not an attractive therm
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由于PbS的成本低和巨大的环境稳定性,最近对它投入了新的注意.文献中报道的几十年以前进行的工作得出结论,PbS（硫化铅）不是一种吸引人的热电材料,其最大ZT在800 K下为0.4[34],它随后被忽略,而取而代之的是PbTe.最近,我们在考虑到上述分层的概念而重新来研究PbS.我们发现,PbSis非常适合进行合金化、纳米结构化和实际上全方位架构化（architecturing）,从而实现非常显着的性能提高.图7（a）比较了n型和p型PbS的晶格热导率.在这一系统中,单是固态溶液点缺陷的分散就有效地分别使PbS室温下的晶格热导率降低40%,对于P型Pb0.975Na0.025S54和n型PbS0.98Cl0.02,34降低10%.随后,我们证明了,用Bi2S3纳米结构化导致额外的声子分散,对n型PbS0.98Cl0.02.34晶格热导率有总共30%的降低.引入中结构化对带有纳米结构SrS54的p型Pb0.975Na0.025S和带有纳米结构Bi2S3,34de1n型PbS0.98Cl0.02分别总共有40%和25%的额外抑制.这些技术使923 K时的ZT值对p型Pb0.975Na0.025S-3％SrS54和n型PbS0.98Cl0.02-1％Bi2S3,34分别提升到1.2和1.1,参见图7（b）.