A cikin fahimtarmu, yumbura na zirconia da alumina yumbu duka fari ne, yayin da yumbu na silicon nitride baki ne.Shin kun ga baƙar fata alumina (AL2O3) yumbu?
Black alumina yumbura yana da hankali sosai saboda abubuwan da suke da su na musamman, Semiconductor hadedde da'ira na yau da kullun yana buƙatar ingantaccen haske, yana iya rage tasirin haske akan haɗaɗɗun da'irori.Don haka baƙar fata shine mafi kyawun zaɓi.
Aluminum (AL2O3) yawanci ba shi da launi ko fari, amma a wasu yanayi yana iya zama baki.Mai zuwa shine cikakken tsari na aluminum oxide da ke zama baki: gurɓatacciyar ƙasa: Akwai wasu gurɓatattun abubuwa a saman alumina, kamar kwayoyin halitta da ke ɗauke da carbon, hydrogen, oxygen da sauran abubuwa, ko ƙazanta masu ɗauke da ƙarfe na canzawa.Wadannan ƙazanta suna iya yin aiki azaman masu haɓakawa, haifar da alumina don amsawa.Halin Ragewar Oxidation: Karkashin wasu yanayin zafi da yanayi, gurɓataccen abu a saman alumina za su sha ɗaukar iskar oxygen-raguwa tare da iskar oxygen.Wadannan halayen na iya haifar da canje-canje a cikin launi na alumina.Samar da yanki na raguwa: A saman alumina, saboda kasancewar redox dauki, za a kafa yankin raguwa.Wannan yanki da aka rage yana da nau'ikan sinadarai daban-daban, gami da canje-canje a cikin stoichiometry da samuwar lahani.Samar da cibiyoyin launi: A cikin yankin da aka rage, akwai wasu wuraren iskar oxygen mara kyau waɗanda zasu iya ɗaukar ƙarin electrons.Wadannan karin electrons suna canza tsarin bandeji na alumina, suna canza yadda yake sha da kuma nuna haske.Wannan yana sa launin alumina ya canza zuwa baki.Gabaɗaya, tsarin samar da baƙar fata na alumina ya samo asali ne saboda haɓakar oxidation-reduction reaction wanda gurɓataccen abu ya fara a saman alumina, wanda ke haifar da raguwar wuri kuma ya gabatar da ƙarin electrons, wanda a ƙarshe ya sa alumina ya zama baki.Baƙar fata alumina za a iya amfani da shi azaman abu don na'urori kamar photodiodes, photoconductors, photodetectors, da phototransistor.Babban gibin kuzarinsa da kyawawan abubuwan optoelectronic suna ba shi damar taka muhimmiyar rawa a fagen optoelectronics.
Lokacin aikawa: Agusta-31-2023