کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1557625 1513753 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced thermoelectric performance of Bi2S3 by synergistical action of bromine substitution and copper nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Enhanced thermoelectric performance of Bi2S3 by synergistical action of bromine substitution and copper nanoparticles
چکیده انگلیسی
In our work, CuBr2 doping could remarkably enhance the thermoelectric performance of Bi2S3. Cu intercalation and Br substitution at sulfur sites contribute to a sharp decrease of electrical resistivity. Simultaneously, the strong point defects caused by Br alloying and formed Cu nanoparticles noticeably suppress the thermal conductivity. Collectively, the maximum ZT of 0.72 at 773 K and average ZT of 0.40 from 300 K to 773 K is obtained for the 0.5 mol% CuBr2 doped sample, making it a very robust candidate among the thermoelectric sulfides in the medium temperature range.277
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nano Energy - Volume 13, April 2015, Pages 554-562
نویسندگان
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