Ukubonelela nge-ternary thermoelectric bismuth telluride P-uhlobo lwe-Bi0.5Sb1.5Te3 kunye nohlobo lwe-N lwe-Bi2Te2.7Se0.3
Intshayelelo emfutshane
Ukusebenza
| Into | bismuth telluride, bi2te3 |
| N uhlobo | |
| Uhlobo lwe-P | Bi0.5Te3.0Sb1.5 |
| Inkcazo | Vimba ingot okanye umgubo |
| ZT | 1.15 |
| Ukupakisha | ukupakisha ibhegi vacumm |
| Isicelo | ifriji, ukupholisa, thermo, uphando lwesayensi |
| Uphawu | Xinglu |
Inkcazo
| Specification | P-Uhlobo | N-Uhlobo | Qaphela |
| Chwetheza inombolo | I-BiTe- P-2 | BiTe- N-2 | |
| Ububanzi (mm) | 31±2 | 31±2 | |
| Ubude (mm) | 250±30 | 250±30 | |
| Ubuninzi (g/cm3) | 6.8 | 7.8 | |
| Ukuqhuba kombane | 2000-6000 | 2000-6000 | 300K |
| I-Seebeck Coefficient α(μ UK-1) | ≥140 | ≥140 | 300K |
| I-Thermal conductivity k(Wm-1 K) | 2.0-2.5 | 2.0-2.5 | 300K |
| Umgubo weFactor P(WmK-2) | ≥0.005 | ≥0.005 | 300K |
| Ixabiso le-ZT | ≥0.7 | ≥0.7 | 300K |
| Uphawu | Xinglu | ||
Isicelo
I-Bismuth telluride (Bi2Te3)sisixhobo sombane se-thermoelectric eyaziwa ngokukwazi ukuguqula amandla obushushu abe ngamandla ombane. Ubukhulu becala iqulunqwe ziindidi ezimbini: P-uhloboBi0.5Sb1.5Te3kunye nohlobo lwe-N lwe-Bi2Te2.7Se0.3. I-P-type Bi0.5Sb1.5Te3 ikakhulu yenziwe yi-bismuth, i-antimony kunye ne-tellurium, ngelixa i-N-type Bi2Te2.7Se0.3 iqukethe i-bismuth, i-tellurium kunye ne-selenium. Zombini iintlobo ze-bismuth telluride ziyafumaneka kwithebhulethi okanye kwifomu yomgubo.
Izicelo zebismuth tellurideI-P-uhlobo lwe-Bi0.5Sb1.5Te3 kunye ne-N-uhlobo lwe-Bi2Te2.7Se0.3 ikakhulu kwintsimi yokuguqulwa kwamandla e-thermoelectric. Ezi zixhobo zihlala zisetyenziselwa izixhobo ze-thermoelectric ezenzelwe ukuxhaphaza umahluko wobushushu ukuvelisa umbane. I-P-uhlobo lwe-Bi0.5Sb1.5Te3 kunye ne-N-uhlobo lwe-Bi2Te2.7Se0.3 inokudityaniswa kwizixhobo ezifana neejeneretha ze-thermoelectric, iinkqubo zokubuyisela ubushushu benkunkuma yemoto, kunye neenkqubo zokuvelisa amandla eziphathekayo. Ukusebenza kwabo okuphezulu kunye nokusebenza kakuhle kubenza bafaneleke kwiinkqubo ezahlukeneyo zokuvuna amandla.
Zombini i-P-type Bi0.5Sb1.5Te3 kunye ne-N-type Bi2Te2.7Se0.3 izinto ze-bismuth telluride zineempawu ezibalaseleyo ze-thermoelectric kwaye zifaneleke kakhulu kwizicelo zokupholisa nge-elektroniki. Ezi zixhobo zinokusetyenziselwa ukwenza iicoolers ze-thermoelectric, ezikwabizwa ngokuba zii-Peltier coolers, ezisusa ubushushu kwizinto zombane kwaye zigcine amaqondo obushushu afanelekileyo okusebenza. Ukwengeza,Bismuth TellurideIzinto ze-P kunye ne-N zisetyenziselwa iinjongo zolawulo lwe-thermal kwizixhobo zonyango, iteknoloji ye-aerospace kunye ne-electronics yabathengi.
Isishwankathelo,bismuth tellurideI-P-uhlobo lwe-Bi0.5Sb1.5Te3 kunye ne-N-uhlobo lwe-Bi2Te2.7Se0.3 zizinto ezixabisekileyo ezinezicelo ezibanzi kwiinkalo zokuguqulwa kwamandla kunye nokupholisa nge-elektroniki. Iimpawu zabo ezikhethekileyo ze-thermoelectric zibenza babe yinxalenye ebalulekileyo yezixhobo ezahlukeneyo kunye neenkqubo, ezinegalelo ekuqhubeleni phambili ukusebenza kakuhle kwamandla kunye nobuchwepheshe obuzinzileyo. Njengoko imfuno yamandla ahlaziyekayo iqhubeka ikhula, ukusetyenziswa kwebismuth tellurideizinto kulindeleke ukuba zande, ukuqhuba uphando ngakumbi kunye nophuhliso kule ndawo.
