Wang Deyin oo ka socda Jaamacadda Lanzhou @ Wang Yuhua LPR waxay ku beddeshay BaLu2Al4SiO12 Mg2+- Si4+pairs Iftiin buluug ah oo cusub oo xamaasad leh budada fluorescent BaLu2 (Mg0.6Al2.8Si1.6) O12: Ce3+waxaa lagu diyaariyey iyadoo la isticmaalayo Al3+- Al3+Pairs in , oo leh waxtarka tirada dibadda (EQE) ee 66.2%. Isla mar ahaantaana dib u habeynta qiiqa Ce3+, beddelkaani wuxuu sidoo kale ballaarinayaa sii daynta Ce3+ wuxuuna yareynayaa xasilloonida kulaylka.
Jaamacadda Lanzhou Wang Deyin & Wang Yuhua LPR waxay ku bedeshay BaLu2Al4SiO12 Mg2+- Si4+pairs: Iftiin buluug ah oo cusub oo faraxsan budada fluorescent jaalaha ah BaLu2 (Mg0.6Al2.8Si1.6) O12: Ce3+ waxaa loo diyaariyey iyadoo la isticmaalayo Al3+- Al3+Pairs in , oo leh waxtarka tirada dibadda (EQE) ee 66.2%. Isla mar ahaantaana dib u habeynta qiiqa Ce3+, beddelkaani wuxuu sidoo kale ballaarinayaa sii daynta Ce3+ wuxuuna yareynayaa xasilloonida kulaylka. Isbeddellada muuqaalka ah waxaa sabab u ah beddelka Mg2+- Si4+, kaas oo sababa isbeddellada goobta crystal-ka iyo summada booska ee Ce3+.
Si loo qiimeeyo suurtogalnimada isticmaalka fosfoorrada iftiinka jaalaha ah ee dhowaan la sameeyay ee iftiinka laysarka ee awoodda sare leh, waxaa loo dhisay sidii giraangiraha fosfooraska. Marka la eego shucaaca leysarka buluuga ah ee leh cufnaanta awoodda 90.7 W mm - 2, qulqulka iftiinka ee budada fluorescent jaalaha ah waa 3894 lm, mana jirto wax muuqda oo soo baxaya ifafaale. Isticmaalka diodes leysarka buluuga ah (LDs) oo leh cufnaanta awoodda 25.2 W mm - 2 si aad u kiciso giraangiraha fosfoor jaalaha ah, iftiin cad oo dhalaalaya ayaa la soo saaray oo leh dhalaal 1718.1 lm, heerkulka midabka isku xiran ee 5983 K, tusaha midabaynta 65.0, iyo isku-duwayaasha midabka (0.3203, 0.3631).
Natiijooyinkani waxay muujinayaan in fosfoorrada iftiinka jaalaha ah ee dhowaan la sameeyay ay leeyihiin karti la taaban karo oo ku saabsan codsiyada iftiinka laysarka ee awoodda sare leh.
Sawirka 1
Qaab dhismeedka Crystal ee BaLu1.94(Mg0.6Al2.8Si1.6)O12:0.06Ce3+la eegay dhidibka b.
Jaantuska 2
a) HAADF-STEM sawirka BaLu1.9(Mg0.6Al2.8Si1.6)O12:0.1Ce3+. Isbarbardhigga qaabka qaab-dhismeedka (kumbuyuutarrada) ayaa muujinaya in dhammaan jagooyinka culus ee Ba, Lu, iyo Ce si cad loo sawiray. b) Habka SAED ee BaLu1.9 (Mg0.6Al2.8Si1.6) O12: 0.1Ce3+ iyo tusmaynta la xidhiidha. c) HR-TEM ee BaLu1.9(Mg0.6Al2.8Si1.6)O12:0.1Ce3+. Gelintu waa HR-TEM oo la ballaariyay. d) SEM ee BaLu1.9(Mg0.6Al2.8Si1.6)O12:0.1Ce3+. Gelintu waa shaxanka qaybinta cabbirka.
Jaantuska 3
a) Xamaasadda iyo qiiqa sii daaya ee BaLu1.94(MgxAl4−2xSi1+x)O12:0.06Ce3+(0 ≤ x ≤ 1.2). La galiyay waa sawirada BaLu1.94(MgxAl4−2xSi1+x)O12:0.06Ce3+ (0 ≤ x ≤ 1.2) maalintii oo dhan. b) Booska ugu sarreeya iyo kala duwanaanta FWHM oo korodhay x ee BaLu1.94 (MgxAl4-2xSi1+x) O12: 0.06Ce3+ (0 ≤ x ≤ 1.2). c) Waxtarka tirada dibadda iyo gudaha ee BaLu1.94(MgxAl4−2xSi1+x) O12:0.06Ce3+ (0 ≤ x ≤ 1.2). d) Curyaaminta suuska iftiinka ee BaLu1.94
Jaantuska 4
a–c) Khariidadda koontarool ee heerkulka ku-tiirsanaanta qiiqa BaLu1.94 (MgxAl4−2xSi1+x) O12: 0.06Ce3+ (x = 0, 0.6 iyo 1.2) fosfoor ka hooseeya 450 nm kicinta. d) Awoodda sii daynta BaLu1.94 (MgxAl4−2xSi1+x) O12:0.06Ce3+ (x = 0, 0.6 iyo 1.2) heerkulka kulaylka ee kala duwan. e) jaantuska isku xidhka qaabaynta. f) Arrhenius ku habboon xoojinta qiiqa BaLu1.94 (MgxAl4−2xSi1+x) O12: 0.06Ce3+ (x = 0, 0.6 iyo 1.2) oo ah shaqada kulaylka.
sawirka 5
a) Muuqaalka qiiqa ee BaLu1.9 (Mg0.6Al2.8Si1.6) O12: 0.1Ce3+ ee ka hooseeya LDs buluugga ah oo leh cufnaanta awoodda indhaha ee kala duwan. Inset waa sawirka giraangiraha fosfoorka ee la sameeyay. b) Socod iftiin leh. c) Waxtarka beddelka. d) Isku-duwayaasha midabka. e) Kala duwanaanshaha CCT ee isha iftiinka ee lagu gaaro irradiation BaLu1.9 (Mg0.6Al2.8Si1.6) O12: 0.1Ce3+ oo leh LDs buluug ah oo leh cufnaanta awoodda kala duwan. f) Muuqaalka qiiqa ee BaLu1.9 (Mg0.6Al2.8Si1.6) O12: 0.1Ce3+ ee ka hooseeya LDs buluugga ah oo leh cufnaanta awoodda indhaha ee 25.2 W mm−2. Inset waa sawirka iftiinka cad ee uu dhaliyo shaagagga fosfor jaalaha ah oo la shiday oo leh LDs buluug ah oo leh cufnaanta awoodda 25.2 W mm−2.
Waxaa laga soo qaatay Lightingchina.com
Waqtiga boostada: Dec-30-2024