Ƙididdigar ƙididdigewa da abin rufewa
A matsayin sabon abu nano, ɗigon ƙididdiga (QDs) yana da kyakkyawan aiki saboda girman girman sa.Siffar wannan abu mai siffar zobe ne ko kuma mai girman kai, kuma diamitansa ya kai daga 2nm zuwa 20nm.QDs yana da fa'idodi da yawa, kamar fa'ida mai fa'ida, kunkuntar watsawa bakan, babban motsi na Stokes, tsawon rayuwa mai kyalli da ingantaccen yanayin rayuwa, musamman ma yanayin fitar da QDs na iya rufe dukkan kewayon hasken da ake iya gani ta hanyar canza girmansa.
Daga cikin nau'ikan kayan haske na QDs, Ⅱ~Ⅵ QDs sun haɗa da CdSe an yi amfani da su don aikace-aikace da yawa saboda saurin haɓakarsu.Nisa rabin kololuwar Ⅱ~Ⅵ QDs ya tashi daga 30nm zuwa 50nm, wanda zai iya zama ƙasa da 30nm a cikin yanayin haɗin da ya dace, kuma yawan adadin kuzari na su ya kusan kai 100%.Koyaya, kasancewar CD yana iyakance haɓakar QDs.Ⅲ~Ⅴ QDs waɗanda ba su da Cd an haɓaka su ne da yawa, yawan amfanin wannan abu ya kai kusan 70%.Rabin kololuwar nisa na hasken kore InP/ZnS shine 40 ~ 50 nm, kuma jan haske InP/ZnS shine kusan 55 nm.Ana buƙatar haɓaka kayan wannan kayan.Kwanan nan, ABX3 perovskites waɗanda basu buƙatar rufe tsarin harsashi ya jawo hankali sosai.Za'a iya daidaita tsawon raƙuman fitar da su a cikin haske mai gani cikin sauƙi.Adadin kididdigar fluorescence na perovskite ya fi 90%, kuma nisa rabin kololuwa kusan 15nm.Saboda launi gamut na QDs luminescent kayan iya zuwa 140% NTSC, irin wannan kayan yana da manyan aikace-aikace a cikin luminescent na'urar.Babban aikace-aikacen sun haɗa da cewa maimakon ƙarancin ƙasa phosphor don fitar da fitilu waɗanda ke da launuka masu yawa da haske a cikin na'urorin lantarki masu sirara-fim.
QDs yana nuna cikakken launi mai haske saboda wannan kayan na iya samun bakan tare da kowane tsayin igiyar ruwa a cikin filin haske, wanda rabin nisa na tsawon igiyar ya zama ƙasa da 20nm.QDs suna da halaye da yawa, waɗanda suka haɗa da daidaitacce launi mai fitarwa, ƙunƙuntaccen juzu'in fitar da hayaki, yawan yawan ƙyalli mai girma.Ana iya amfani da su don haɓaka bakan a cikin fitilun baya na LCD da haɓaka ƙarfin bayyana launi da gamut na LCD.
Hannun ƙullawa na QDs sune kamar haka:
1) On-chip: ana maye gurbin foda na gargajiya na QDs luminescent kayan, wanda shine babban hanyoyin rufewa na QDs a cikin filin haske.Amfanin wannan akan guntu kaɗan ne na abu, kuma rashin amfani shine kayan dole ne su sami kwanciyar hankali.
2) On-surface: da tsarin ne yafi amfani da backlight.Fim ɗin na gani an yi shi da QDs, wanda yake daidai sama da LGP a cikin BLU.Koyaya, babban farashi na babban yanki na fim ɗin gani yana iyakance yawan aikace-aikacen wannan hanyar.
3) A gefen: kayan QDs an lullube su don tsiri, kuma an sanya su a gefen tsiri na LED da LGP.Wannan hanya ta rage tasirin thermal and Optical radiation wanda ke haifar da shuɗi LED da kayan luminescent QDs.Haka kuma, an rage yawan amfani da kayan QDs.
