Nikeza i-ternary thermoelectric bismuth telluride P-type Bi0.5Sb1.5Te3 kanye nohlobo lwe-N-Bi2Te2.7Se0.3
Isingeniso esifushane
Ukusebenza
| Into | bismuth telluride, bi2te3 |
| N uhlobo | |
| Uhlobo lwe-P | I-Bi0.5Te3.0Sb1.5 |
| Ukucaciswa | Vimba ingot noma impushana |
| ZT | 1.15 |
| Ukupakisha | ukupakisha isikhwama se-vacumm |
| Isicelo | isiqandisi, ukupholisa, i-thermo, uphenyo lwesayensi |
| Ibhrendi | Xinglu |
Ukucaciswa
| I-Specificaiton | Uhlobo lwe-P | N-Uhlobo | Kuphawuliwe |
| Thayipha inombolo | Bite- P-2 | I-BiTe- N-2 | |
| Ububanzi (mm) | 31±2 | 31±2 | |
| Ubude (mm) | 250±30 | 250±30 | |
| Ukuminyana (g/cm3) | 6.8 | 7.8 | |
| I-conductivity kagesi | 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 |
| I-Powder Factor P(WmK-2) | ≥0.005 | ≥0.005 | 300K |
| Inani eliphakeme kakhulu lama-ZT | ≥0.7 | ≥0.7 | 300K |
| Ibhrendi | Xinglu | ||
Isicelo
I-Bismuth telluride (Bi2Te3)i-thermoelectric material eyaziwa ngekhono layo lokuguqula amandla ashisayo abe amandla kagesi. Ngokuyinhloko yakhiwe izinhlobo ezimbili: uhlobo lwe-PI-Bi0.5Sb1.5Te3kanye nohlobo lwe-N lwe-Bi2Te2.7Se0.3. I-P-type Bi0.5Sb1.5Te3 yakhiwe ngokuyinhloko i-bismuth, i-antimony ne-tellurium, kuyilapho i-N-type Bi2Te2.7Se0.3 iqukethe i-bismuth, i-tellurium ne-selenium. Zombili izinhlobo ze-bismuth telluride ziyatholakala ngethebhulethi noma ngefomu lempushana.
Izicelo zei-bismuth tellurideI-P-type Bi0.5Sb1.5Te3 kanye ne-N-type Bi2Te2.7Se0.3 ikakhulukazi emkhakheni wokuguqulwa kwamandla kagesi we-thermoelectric. Lezi zinto zivame ukusetshenziswa emishinini ye-thermoelectric eklanyelwe ukusizakala ngokuhluka kwezinga lokushisa ukuze kukhiqizwe ugesi. I-P-type Bi0.5Sb1.5Te3 kanye ne-N-type Bi2Te2.7Se0.3 ingahlanganiswa emishinini efana namajeneretha e-thermoelectric, amasistimu okuthola ukushisa kwemfucuza yezimoto, kanye nezinhlelo eziphathwayo zokuphehla amandla. Ukusebenza kwabo okuphezulu nokusebenza kahle kubenza bafanelekele izinhlelo zokusebenza ezihlukahlukene zokuvuna amandla.
Kokubili P-type Bi0.5Sb1.5Te3 kanye N-uhlobo Bi2Te2.7Se0.3 bismuth telluride izinto zinezici thermoelectric ezinhle kakhulu futhi zifaneleka kakhulu izicelo zokupholisa electronic. Lezi zinto zingasetshenziswa ukwakha izipholile ze-thermoelectric, ezaziwa nangokuthi ama-Peltier coolers, asusa ukushisa ezingxenyeni ze-elekthronikhi futhi agcine izinga lokushisa elilungile lokusebenza. Ngaphezu kwalokho,I-Bismuth TellurideIzinto zokwakha zohlobo lwe-P no-N zisetshenziselwa izinjongo zokulawula ukushisa kumishini yezokwelapha, ubuchwepheshe be-aerospace kanye nama-electronics abathengi.
Ngokufigqiwe,i-bismuth tellurideI-P-type Bi0.5Sb1.5Te3 kanye nohlobo lwe-N-Bi2Te2.7Se0.3 yizinto ezibalulekile ezisetshenziswa kabanzi emikhakheni yokuguqulwa kwamandla kanye nokupholisa nge-elekthronikhi. Izakhiwo zabo ezihlukile ze-thermoelectric zibenza babe ingxenye ebalulekile yezinhlobonhlobo zamadivayisi nezinhlelo, ezifaka isandla ekuthuthukisweni kokusebenza kahle kwamandla kanye nobuchwepheshe obuqhubekayo. Njengoba isidingo samandla avuselelekayo siqhubeka sikhula, ukusetshenziswa kwei-bismuth tellurideizinto zokwakha kulindeleke ukuthi zande, ziqhube ucwaningo nokuthuthukiswa okuqhubekayo kule ndawo.
