在高温高压下合成方钴矿结构热电材料Ba0.32CO4Sb12-xTex(0.1≤x≤0.9),测试了样品的微观结构和室温电学性质.结果表明:Ba填充Te置换型方钴矿Ba0.32Co4Sb12-xTex为n型半导体;在不同压力下,随着Te填充分数的增加.Seebeck系数的绝对值和电阻率均呈降低趋势,功率因子显著提高.在1.5 GPa、900 K条件下合成的Ba0.32CO4Sb11.9Te0.1化合物功率因子达到最大值(9.7μWcm-1K-2).
参考文献
| [1] | Sales B C,Thermoelectric Materials-Smaller Is Cooler.Science,259(5558),1248(2002) |
| [2] | Sales B C,Mandrus D,Williams R K,Filled Skutterudite Antiminidesl:A new class of thermoelectric materials,Science,272(5266),1325(1996) |
| [3] | Slack G A,New materials and performance limits of thermoelectric (New York,CRC Press,1995) p.407 |
| [4] | TANG Xinfeng,CHEN Lidong,T Goto,T Hirai,YUANG Runzhang,Thermoelectric properties of n-type BayNixCo4-x;Sb12,Chinese Journal of Physics,51(12),2823(2002)(唐新峰,陈立东,後藤孝,平井敏雄,袁润章,n型BayNixC04-xSb12化合物热电性能,物理学报,51(12),2823(2002)) |
| [5] | Puyet M,Dauscher A,Lenoir B,Dehmas M,Stiewe C,Muller E,Hejtmanek J,Beneficial effect of Ni substitution on the thermoelectric properties in partially filled CayCo4-xNixSb12 skutterudites,Appl.Phys.,97(8),122(2005) |
| [6] | Pei Y Z,Chen L D,Bai S Q,Zhao X F,Li X Y,Effect of Pd substitution on thermoelectric properties of Ba0.32PdxCo4-x;Sb12,Scripta Materialia,56(1),621(2007) |
| [7] | Liu S W,Zhang B P,Li J F,Zhang H L,Zhao L D,Enhanced thermoelectric properties in CoSb3-x;Tex alloys prepared by mechanical alloying and spark plasma sintering,Journal of Applied Physics,102(10),103717(2007) |
| [8] | Deng L,Ma H A,Su T C,Yu F R,Tian Y J,Jiang Y P,Dong N,Zheng S Z,Jia X P,Enhanced thermoelectric properties in Co4Sb12-xTex alloys prepared by HPHT,Mater Lett.,10488(2009) |
| [9] | QIN Bingke,LI Xxiaolei,LI Shangsheng,SU Taichao,MA Hong'an,JIA Xiaopeng,High pressure synthesis and thermoelectric properties of the Ba-filled skutterudites,Journal of Inorganic Materials,25(1),23(2010)(秦丙克,李小雷,李尚升,宿太超,马红安,贾晓鹏,Ba填充方钴矿化合物的高压合成及热电性能,无机材料学报,25(1),23(2010)) |
| [10] | DONG Nan,JIA Xiaopeng,SU Taichao,JIANG Yiping,GUO Jiangang,DENG Le,MA Hong'an,Synthesis and electric transport properties of Na-filled CoSb3 at high-pressure,Chinese Journal of High Pressure Physics,23(1),42(2009)(董楠,贾晓鹏,宿太超,姜一平,郭建刚,邓乐,马红安,Na填充型方钴矿化合物CoSb3的高压合成及电输运特性研究,高压物理学报,23(1),42(2009)) |
| [11] | SONG Chunmei,LIU Huajun,HUANG Rongjin,CAI Fangshuo,LI Laifeng,The low temperature thermoelectric properties of Bio.85Sbo.15 fabricated by high pressure,Chinese Journal of Materials Research,21(2),126(2007)(宋春梅,刘华军,黄荣进,蔡方硕,李来风,高压合成纳米晶Bi0.85Sb0.15的低温热电性能,材料研究学报,2a(1),42(2009)) |
| [12] | TaKizawa H,Miura K,Ito M,Suzuki T,Endo T,Atom insertion into the CoSb3 skutterudite host lattice under high pressure,Alloys Compd.282(1),79(1999) |
| [13] | Nolas G S,Kendziora C A,Takizawa H,Polarized Ramam-scattering study of Ge and Sn-filled CoSb3,J Appl Phys,94(12),7440(2003) |
| [14] | Wojciechowski K T,Tobola J,Leszczyfiski,Thermoelectric properties and electronic structure of CoSb3 doped with Se and Te,Alloys Compd,361(1/2),19(2003) |
| [15] | Badding J.V.,Meng J.F.,Polvani D.A.,Pressure tuning in the search for new and improved solid state materials,Chemistry.Materials,10,2889(1998) |
| [16] | Liu T X,Tang X F,Xie W J,Yan Y G,Zhang Q G,Crystal structures and thermoelectric properties of Sm-filled skutterudite compounds Smy FexCo4-xSbi2,Joural of Rare Earths,25(6),739(2007) |
| [17] | Liu W S,Zhang B P,Li J F,Effects of Sb compensation on microstructure thermoelectric properties and point defect of CoSb3 compound,Phys.D:Appl.Phys.,40(21),6784(2007) |
| [18] | He QY.Hu S J,Tang X G and Lan Y C,Yang J,Wang X W,Ren Z F,Hao Q,Chen G,The great improvement effect of pores on ZT in Co1-xNixSb3,Appl.Phys.Lett.,93,042108(2008) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%