O -Al O Screening of Eu - and Tb -Activated Phosphors for PDP in theSystem of CaO-Gd CaO-Gd O -Al O PDP Tb Eu

전체 글

(1)Journal of the Korean Chemical Society 2002, Vol. 46, No. 4 Printed in the Republic of Korea. CaO-Gd2O3-Al2O3. PDP Eu Tb

(2) 3+. 3+. *

(3) .

(4) (2002. 4. 15 ). †. ‡. †. ‡. Screening of Eu3+- and Tb3+-Activated Phosphors for PDP in the System of CaO-Gd2O3-Al2O3 Sang-Mi Park*, Chang Hae Kim, Hee Dong Park, Ho G. Jang†, and Joon Taik Park‡ Advanced Material Division, Korea Research Institute of Chemical Technology, Daejon 305-600, Korea † Chemistry, Korea University, Seoul 136-701, Korea ‡ Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejon 306-701, Korea (Received April 15, 2002). . CaO-Gd O -Al O Eu Tb !" #$ % &$ PDP '()* +$,-., +$/ '()0 "12, 3#", 4( 5" 6 7,8. CaO-Gd O -Al O 0 9 ":0 '(5" ;<=>* ?" @ 210A0 8B " CD EF* :G H) IJ-K ",8. "/ '() :LM VUV PLK NO '( 5" ;<=>* ?", , 4(5" P QRS EF XRD* TO * UV,8. #$ '()K +$/ Ca Gd Al O : Eu(0.02<α+β<0.04)' () $W2 X Y'()Z8 A[/ 5" Z,-., &$ '()K +$/ CaGdAl O : Tb, CaAl O : Tb, Gd Al O : Tb, Gd Al O : Tb '() I CaGdAl O : Tb, CaAl O : Tb '() Y '() \] ^(E_ `M 5" Z,8. : '(), , :G H)IJ, aEG 2. 3. 2. 3+. 3. 3+. 2. α. 0.95-α-β. β. 3. 2. δ. 3. 12. 19. 4. 2. 9. 3. 5. 12. 3. 7. 3. 12. 7. 19. ABSTRACTS. In this study, we have screened Eu3+- and Tb 3+-activated candidate phosphors for PDP in the systems of CaO-Gd2O3-Al2O3 by combinatorial chemistry and investigated the synthetic temperature, optimum composition and luminescent properties about the candidate phosphors. To construct the emission intensity library by VUV PL, we have synthesized 210 different compositional samples using a polymerized-complex method. Good luminescent samples were identified by X-ray diffraction method. Caα Gd0.95-α-βAlβ‚O δ : Eu (0.02<α+β<0.04) phosphors screened as a red phosphor have good color purity than commercial phosphor. In the candidate phosphors of CaGdAl3O7 : Tb, CaAl12O19 : Tb, Gd4Al2O9 : Tb and Gd3Al5O12 : Tb, CaGdAl3O7 : Tb and CaAl12O19 : Tb have shorter decay time than commercial phosphor. Keywords: Phosphor, Compbinatorial Chemistry, Polymerized-Complex Method, Plasma Display Panels. 336.

(5) CaO-Gd2O3-Al2O3. PDP Eu Tb

(6) 3+. PDP ) bc aEGK de., 'C f , ghi Cj., kM Elm2, [n Y 60 o 5" p qr s (HD) TVK Ct uv wZK xmyr z* @ A4 {g2K D|yr }~ q x ~)K \ GC D|y q8. (Y, Gd) BO (#$), Zn SiO (&$), BaMgAl O ($) '() :0 PDP / '(sK #y q PDP yr "-^(E_, $W2, , 2- c E q8. #-K PDP '() Xe C0 bc E 4x 147 nm t #-K mm0 u CE([ bE DG[ C rQ '()* [ ¡ I8. ¢ £¤ ?¥ E 4x 0 ¦ ( Y ? E C] §> O 0 ¨ ©" p ¡ /8. = 5"M ª)0 5" «oy¬K DG[ 0 5" # O" C ª)* [ ¡ ®o I8. ¯;, '() [ ° E± q wZ '()* ²E_ ³$ q J 2´,8. µ=Q, ¶ A4/ J ' () " µ K # ·M ¸ q8. Y¹H 0 "/ ¡M º»., } ¼½ #r, _² ( :¾ TO" % ´G ' ¿ ÀÁ '( ÂÃÄÅ Æn ÀÇ/ :¾ È # 1,2. 3. 2. 4. 10. 17. 3. 3+. -K |C ÉÊ8. ¢ bJM ²E_ 8e0 s ³$ q, mm0 s ¯ ; 8E YJQ ËYJ-K " '(5" ÌC]l ²¸ q8. = ²¸ ]T @] 5Í h* , "/ E F0 ¶0 bJZ8 #, s0 OU " Î#, ( 5" % TO", ´G '¿ 60 #V :¾ z| q2Ï ,8. ¢, EF:L " @ :G H)IJ ,8. : G H)IJM Ë &Ðq Ñ/ Òg } 1Ó >_ÔV ~ O H '" ¡ 8. :G T © }1Ó ÕÖ :~yÖ ×M 122 " Cj , TO '" w ? Õ Ø0 ´G* CÖ /8. ¯;, :G H)IJ J Ù CaO-Gd O -Al O 9": ~ ª)K !"K Eu , Tb ÚC PDP0 5" Û '()* +$ G ,-., w Z '() '(5" ÜÝZÞ8. 8. 2. 3. 2. 3+. 3. 3+. . 4. 5-7. 337. . 0 9": VUV(Vacuum '()* +$ @ m 0 " ß* 0.05 mol ² ([Ca]+[Gd]+[Al]=1 mol)K 210A0 8B " CD ;<=>* ?",8. !"(Eu , Tb ) CaO-Gd 2O 3-Al2O3. Ultraviolet-Visible; 147 nm). 3+. Fig. 1. Schematic diagram of the polymerizedcomplex combinatorial chemistry method and analysis. 2002, Vol. 46, No. 4. 3+.

(7) . 338. ¾* ÀÁ,8. zâM z1-K þ 0 12ÿ@ 20 ml/min0 * úE X : 5 C0 1 g2K CX |,8. '()0 4(5" :¾ @] UV/VUV 4(, % diffuse reflectance NO, 8. µ TO* :¾ @ X-ray diffractometer (XRD Rigaku DMAX-33) ,8. µ NOùM. 1200oC. o. 20o < 2θo < 70o, Step size=0.01, Target : Cu Kα, Filter :. 8.. Ni Power : 40 kV, 15 mA. . Fig. 2. Schematic flow chart of experimental procedure.. 1Ø ~Y¿*

(8) Gd àá/8 C O,8. J ¯; §> zâ 5" ÌC ¯B '(5" ;<=>0 ? @] 40ã 80ã12(CKãÈKãä: mm) Ø* CD åæçQ è éC 0.5 ml V 16A0 ê q h* ? 7,8. h DG [ '(:¾ µ K # Cj8. 0 c)#V zâ O Fig. 1 QR ©ë8. "a* ?" w, Fig. 2 ¯B O ì í "/ EF NOtà* Y 4( 2* \ m ;<=>* "Ö y X, I îM 4(5" QR© EF* [ EF0 TO, 3#ï2, '(5" ÌC ZÞ8. H)IJ 0 '() OM Fig. 2 QR ©ë8. CaCO , Gd O , Eu O , Tb O , Al(NO ) * s ~ % ¹ð & Òg 1 Ë w, Ó Ë a0 " ÛÖ 6 ml EâÀ :ñ Ñ8. µ w, ~ : òó ô;õ(1 : 4) * c) Òg 1 ö0 3÷C y2Ï ÚC Òg H '"Eø w, 85-140 C ù % Ih ú] :G c)* û8. * 600 C §> u ¿o , * h üý §> 8. §> 12 1000-1400 C ~:@ ¢ 5% H /N á:@ " '() EF : L ",8. 3+. 9. 3. 2. 3. 2. 3. 4. 7. 3 3. H)IJ 0] / EF # ì¥ ÀÁ @ Gd q ÒgË ~ : òó ô;õ(1 : 4) c) Òg 1 ö 0 3÷C y2Ï ÚC 80~145 C ù % h ìí '"/ :G c)0 :¾ T * Fig. 3 QR©ë8. ½Ö ß0 [(TG) ZX, 230 C ½Ö

(9) C rQ ¡M h 0] x"/ 0 ¹4 0 ¡-K ÎN/8. 250~470 C 120 { ½Ö

(10) :G H c)©0 u :]yX rS 8. E :¾(DTA) [ ZX, A0 4 é ØC ÀÁy 300~400 C 70 4éØ :G H c) ©0 u0 :] -K xm/ 8. ¡M ½Ö

(11) [2 UV yë8. 450 C Òg10 TO 0] QRQ ¡-K è ²/8. ¡M 600 C §> Gd O 0 X[ 3+. o. o. o. o. o. o. 2. 3. o. o. o. 2. 2.

(12) '() c)0 # 5" 7 @ TO O 7 @ Universal V2.5H TA :. Fig. 3. TG-DTA curves of polymerized Gd-precursor prepared by polymerized-complex method. Journal of the Korean Chemical Society.


(14) 3+. :¾ T TO _ '"yë UV,8. zâT ¯; J-K 210A0 8B " CD ;<=>* @] 80~145 C h ú] :G H c)* Ó , * 600 C c §> c) ©0 u :] Eø w, 8E µ Y0 12(1000~1400 C) w §> '()* ",8. o. o. o. bJ 0 / Eu !" Ca Gd Al O EFÓ 147 nm 0 "12 "ß ¯B Y 4( 2* n0 K Fig. 4 QR©ë8. r $Ï 4( 2C ¹ C ¡-K, ¡M 4( 20 * q8 t¸ C q8. Eu C ÚC/ '() 612 nm 3 4( éØ* QR© #$ '() * q8. T* ZX, 12 ¹C ¯; m ;<=>0 c)#V 4( 2C

(15) å q , 3 4( 2* QR© ¡M 1100 C " / EF,8. µ I Gd O 0 " Ct ä M 4( 2* Z, , "M 1300 C { 4( 2

(16) * Z, 1100 C 612 nm 3 4( éØ* QR© 1300 C 624 nm 3+. β. α. δ. 3+. 10. o. 2. 3. o. o. o. 1-α-β. 3+. 339. 3 4( éØ* QR©ë8. ¡M 12 ¹C 0 ] Gd O C cubic monoclinic-K Yc 0 ¡-K XRD :¾ T UVyë8(Fig. 6). Fig. 4(a) ZX K Gd O 0 " 3 4( 2* QR©ë8. * 8E 0<Ca<0.05, 0<Gd<0.05, 0<Al <0.050 ÿ@ 0.01 mol È ß ¯; ;<=>* Ór 4( 2* \ Fig. 4(d) Z,8. Gd O Al O ÚC Al ÚCÏ 4( 2C

(17) , , CaO Ú C Ca C ÚCÏ 4( 2C ¹C,8. ¢ 0.02<Ca+Al<0.04V :(¥µ;ç :) C t äM 4( 2* QR©ë8. bJ 0 / Tb !" Ca Gd Al O EFÓ 147 nm "ß "12(1000 C~1400 C) ¯B 4( 2* n 0 K Í Fig. 5 QR©ë8. r $ Ï 4( 2C ¡8. Tb C ÚC/ '() 544 nm 3 4( éØ * p &$ '() * q8. 12ß ¯; Ct 4( 2C äÞ "M 0.2<Ca<0.35, 0.15<Gd<0.35, 0.45<Al<0.6 2. 3. 2. 3. 3+. 2. 3. 2. 3. 2+. 3+. β. α. 1-α-β. δ. o. o. 3+. 11. 0.65<Ca<0.8, 0.25<Al<0.4 0.7<Gd<0.75, 0.3<Al<0.35. 0.1<Ca<0.15, 0.9<Al<0.95 0.35<Gd<0.6, 0.55<. K QR 8. ¢, ! L m äM. Al<0.7. Fig. 4. Ternary combinatorial libraries of Eu3+0.05-activated CaαGd0.95-α-βAlβOδ samples as a function of firing temperature under the VUV (147 nm) excitation. (a) 1100oC, (b) 1200oC, (c) 1300oC, (d) 0<Ca<0.05, 0<Gd<0.05, 0<Al<0.05. 2002, Vol. 46, No. 4.

(18) . 340. Fig. 5. Ternary combinatorial libraries for Tb3+0.05-activated CaαGd0.95-α-βAlγOδ system as a function of firing temperature under the VUV(147 nm) excitation. (a) 1100 oC, (b) 1200 oC, (c) 1300 oC, (d) 1400 oC.. 4( 2* QR© 12C 8" ÀÁ q8. 0.2<Ca<0.35, 0.15<Gd<0.35, 0.45<Al<0.6. 0.7< Gd<0.75,. V :M 1100 C Ct äM 4( 2* QR©ë , 0.65<Ca<0.8, 0.25<Al<0.4 0.1< Ca<0.15, 0.9<Al<0.95 0.35<Gd<0.6, 0.55<Al<0.7V. :M 1300 C Ct äM 4( 2* Z,8. ¡M ×M 12 "y #Þ TO 12C ä ÐX TO '"yr äM 4( 2* QR$ å q , TO '" 12 Y-K0 g#V § > YcQ, ´G'Y0 ß'-K V 4( 2 o. 0.35<Al<0.3. C

(19) yë å q8. ¡-K þ # "bJM "ß 12ß ¯B 4( 20 ß* ÀÁ q8 ¡ å q8. Fig. 6 Fig. 7M Eu !" Tb !" m ;< 3+. 3+. o. Fig. 6. XRD patterns of some Eu3+0.05-activated phosphors. CaαGd0.95-α-βEu0.05AlβOδ (0.02<α+β<0.04).. Fig. 7. XRD patterns of some Tb3+0.05 phosphors. (a) Ca0.25 Gd0.2Tb0.05Al0.5Oδ, (b) Ca0.65Tb0.05Al0.3Oδ, (c) Ca0.05Tb0.05Al0.9Oδ, (d) Gd0.65Tb0.05Al0.3Oδ, (e) Gd0.35Tb0.05Al0.6Oδ. Journal of the Korean Chemical Society.


(21) 3+. => Ct äM 4( 2* QR% : [ :¾ T8. Fig. 6(a)* ZX Eu !" Ca Gd Al O äM 4( 2* QR% #$ '()-Ca Gd Eu Al O (0.02<α+β<0.04)- Ca Al ÚCyë W Gd O 0 ObO(cubic) 0 ²Y-K ÀÁyë8. çe0 Ca AlM TO & çà # '(5"M A[/8 ¡ å q8. Tb !" Ca Gd Al O äM 4( 2* QR% &$ '()ÓM = CC "y ë8. Fig. 7 ZX Ca Gd Tb Al O CaGdAl O , CaGdAlO % 8B '( ~ "/ ¡-K À Á/8. µ "/ EFÓM K Ca Tb Al O Ca Al O 0 ²Y-K Ca Tb Al O CaAl O 0 ²Y-K Gd Tb Al O Gd Al O 0 ²Y 3+. X-. α. β. 1-α-β. α. δ. 0.95-α-β. β. 0.05. δ. 2. 3+. α. 0.25. β. 1-α-β. 0.2. 3. 0.05. δ. δ. 0.5. 3. 7. 4. 0.65. 3. 2. 6. 0.05. 0.65. 0.05. 0.3. 0.05. δ. 0.9. δ. 4. 2. 0.05. 9. 0.3. δ. 12. 19. 3+. 341. -K, Gd Tb Al O Gd Al O GdAlO 0 Ñ Y-K ÀÁyë8. m EFÓ = ÑY-K '" y ¡M ;<=> m 1 ö ß 0.05 molK) OU }* ày # -K ýD8. µ=Q, ;<=>* ú] Tb !"K VUV 4( 2* QR© &$ '()0 ª)K) CaGdAl O , CaGdAlO , Ca Al O , CaAl O , Gd A O , Gd Al O , GdAlO Cj å q8. "/ '() ] OU }*# Oe ÛÎr " 4( 2* \ T äM 4( 2* QR© '() CaGdAl O , CaAl O , Gd Al O , Gd Al O ,8. Ó0 "12 + ; <=>* ú] ,M T _ ->8. µ u + ;<=> 1000~1400 C g#V 0.35. 0.05. δ. 0.6. 3. 3. 7. 4. l2. 9. 3. 5. 12. 4. 2. 9. 3. 5. 12. 5. 4. 12. 3. 3. 2. 6. 12. 19. 12. 19. 3. 3. 7. o. Fig. 8. Concentration quenching behavior. (a) Gd2O3 : Eu, (b) CaGdAl3O7 : Tb, (c) CaAl12O19 : Tb, (d) Gd4Al2O9 : Tb, (e) Gd3Al5O12 : Tb. 2002, Vol. 46, No. 4.

(22) . 342. 12ßK V] z "12Z8 ×M 12 "yë 8. J ú 4( 2 X[ :¾ T DG[ (147 nm) äM 4(2 * QR© '() Gd O : Eu, CaGdAl O : Tb, CaAl O :Tb, Gd Al O : Tb, Gd Al O : Tb,8. Ó0 3# " ÀÁ @ !" ï2ß ¯B 4( 2 ß* ÀÁ ZÞ8. Fig. 8 ZX, m '() ¯; 3 4( 2* p !" 0 ï2C 8" ÀÁ q8. ¡M m ª) T O ¯; ª)* æ 1_ ì>C -> , 1 àáyr ÓrC !" 1 7 ì> K V m ª).8 Y/?0 & K 8 2. 12. 19. 4. 2. 9. 3. 3. 3. 5. 12. 7. 8. ¢, !"0 öC ¹CÏ 4( 2 C

(23) y ¡ ÀÁ q8. = Y 8 0 n q8. ª) / ¼C !" c1yr / w, 8E ¨Y¿K 2Ð 3X '7c* Ö y , !"0 öC ¹C Ï !" 7 ì>C C 45 1 b y ¼* 6 1 8E y 8. 7, !" 1 70 ¼ ¥ 0 ] ï2 ( Y rQÖ /8. ¯;, 3 4( 2* p @] ª)0 [ 8 ÐÄ; \ 4( c* 3 q !"0 ï22 I 8. 3#0 ù("12, !" ï2) " m 11. Fig. 9. Excitation and emission spectra of synthesized phosphors. (a) Gd2O3 : Eu, (b) CaGdAl3O7 : Tb, (c) CaAl12O19 : Tb, (d) Gd4Al2O9 : Tb, (e) Gd3Al5O12 : Tb. Journal of the Korean Chemical Society.

(24) PDP Eu Tb

(25) 3+. CaO-Gd2O3-Al2O3. 3+. 343. Table 1. The luminescence properties of candidate phosphors searched by combinatorial polymeric-complex method Composition of sample CaαGd0.09-α-βAlβOδ : Eu0.05 (0.02<+<0.04) Ca0.20Gd0.186Al0.60Oδ : Tb3+0.014 Ca0.05Al0.90Oδ : Tb3+0.05 Gd0.65Al0.33Oδ : Tb3+0.017 Gd0.35Al 0.625Oδ : Tb3+0.025. Lead phosphor. Relative Luminance (%). Decay time (ms). CIE coordinates (x, y). Gd2O3 : Eu CaGdAl3O7 : Tb CaAl12O19 : Tb Gd4Al2O9 : Tb Gd3Al5O12 : Tb. 85a 40b 41b 43b 48b. 1.96 4.64 3.38 7.25 6.20. X=0.6478 Y=0.3363 X=0.3333 Y=0.5363 X=0.3230 Y=0.5740 X=0.3244 Y=0.5861 X=0.3574 Y=0.5500. a: compared to commercial phosphor (Y, Gd) BO3 : Eu b: compared to commercial phosphor Zn2SiO4 : Mn. '() % 4( Fig. 9 Q R©ë8. Eu (4f )* !"K '()0 , 150~280 nm QRQ kM 9 ª )0 ~K þ Eu K0 ccK V ¼ 0] QRQ ¡8. ¢, 300 nm Y QR Q :M 9 Eu 0 f-f c 0 ¡8. Tb (4f ) !"K '()0 M 200~300 nm0 0 kM 9 Tb 0 f-f c 0 ¡ , 320 nm Y0 QRQ ·M :M 9 Tb 0 f-d c 0] QR S8. d ;2 K V] f-d c 0 9 crystal field ¯; t ßy , #V < " ¯; :>/8. ª) / Gd (4f ) 0 92 ÀÁ/8. Gd 0 f-d c 0] 270~280 nm 300~315 nm :M 9C Q RS8. Eu Q Tb 0 9 Gd 0 9C ¥E QRS8X, ¡M / Gd 0 °@C Eu 0 D Q Tb 0 D °@Z8 äÐ Gd =Eu cQ Gd =Tb cC Cj8 Dexter 0X, ² ¡ QR%8. !"K0 ¼ c áO 0 ¡V , ¡M ²0 4( !"0 0 ¼ I> 0] TO/8 8. 200 nm 0 0 9 ª) 0 ¡8. 4( ZX, Eu ? ¦ 4 4( I@K D = F , D = F , D = F c 0 4( 9* QR© , Eu @0 <"0 & 0] m c 0 Y ÈC 8 8. Gd O : Eu, Ca, Al '() Eu 0 D = F c 0] 612 nm 3 4( é Ø* QR©ë8. Tb '() Tb C ? ¦ 4 4( I@-K Tb M D °@ F (J=6,5,4,A) °@K c $4( D °@ F (J=6,5,4,A 3+. 6. 3+. 3+. 3+. 10,12. 8. 3+. 3+. 11. 3+. 7. 3+. 10,11,13-16. 3+. 3+. 3+. 3+. 3+. 5. 3+. 5. 0. 3+. 3+. 4. 3+. 3+. 10,13,15-18. 19. 20. 3+. 5. 7. 5. 2. 7. 2. 1. 5. 2. 7. 0. 2. 3+. ). °@K c &$4( 8.. 9,11. Tb, CaAl12O19 : Tb, Gd4Al2O9 : Tb, Gd3Al5O12 :Tb. ª ª) ÀB Tb 0 D = F 0 c 0] 544 nm 3 4( éØ* QR©ë8. Eu , Tb M cGC q 3m cGCs 4f;2K 5s 5p ;2 0] D=E qr @0 ß* ì0 F #Ð, 5O 4( ÀÁ që8. @ ÀÁ/ D = F cÓM spin selection rule parity selection rule 0X Ò/ c, spinorbit coupling 0] D F °@C GàÖ yr spin rule Hy , TOt0 & 0] 8B parity * CD 4f cG Ó0 Ñ 0] odd term p Ö yr parity rule2 :#-K H/8. 3#0 ù("12, !" ï2) " m '() 4( 5" :¾ Y'() \ Table 1 QR©ë8. ÓM ª Y'( )Z8 ×M 4( 2* Z,-Q, "bJ 1> A[ q ¡8. zâ ú] #$ '( )K +$/ Ca Gd Al O : Eu(0.02<α+β<0.04) '() $W2 X Y'()((Y, Gd)BO : CIE x=0.6342, y=0.3509)Z8 A[/ 5" Z,-., & $ '()K +$/ CaGdAl O : Tb, CaAl O : Tb, Gd Al O : Tb, Gd Al O : Tb '() I CaGdAl O : Tb, CaAl O : Tb '() Y'() (Zn SiO : τ =5.5) \] ^(E_ `M 5" Z ë8. ¯; ÓM PDP '()K0 h C j" q ¡-K /8. 3+. 2. 5. 5. 5. 7. 3. J. 5. 7. 4. 2002, Vol. 46, No. 4. J. 3+. j. 5. 7. j. 21. α. β. 0.09-α-β. δ. 3. 3. 4. 3. 2. 4. 2. 9. 7. 3. 12. 5. 7. 12. 19. 12. 19. 1/10. . 2. 3+. J. 7. i. 3. 3+. 7. 3+. 7. 0. 5. 4. 10. 3+. CaGdAl3O7 :. Cj '()* I @] J :G H)IJ Ù CaO-Gd O -Al O PDP. 2. 3. 2. 3.

(26) . 344. DG[(147 nm) Ca Gd Al O (0.02<α+β<0.04)* ª)K #$ '()* α. β. 0.95-α-β. δ. CaGdAl3O 7 : Tb, CaAl12O 19 : Tb, Gd 4Al2O 9 : Tb,. Gd Al O : Tb* ª)K &$ '()* " ,8. NO T* JK-K ;<=>K ÓM K ÑY QR©ë, mm ª) ¯B '(5 "0 d&" \ që8. #$ '()K +$ / Ca Gd Al O : Eu(0.02<α+β<0.04)'() Y '()Z8 îM $«a 5" Z,-., &$ '() K +$/ CaGdAl O : Tb, CaAl O : Tb, Gd Al O : Tb, Gd Al O : Tb '() I CaGdAl O : Tb, CaAl O : Tb '() Y'() \] ^(E_ `M 5" QR©ë8. 3. 5. 12. α. 0.95-α-β. β. δ. 3. 3. 12. 5. 7. 12. 12. 19. 4. 3. 2. 9. 7. 19.

(27). . . 1995, 22, 3, 73. 1. 2. . . 1996, 11, 14. 3. Mikoshiba, S. J. Appl. Phys. 1979, 50, 1088.; Husk, D.E. J. Opt. Soc. Am. (B), 1990, 7, 2226.; Raue, R. J. Appl. Phys. 1994. 481. 4. Belsky, A. N.; Krupa, J. C. Display. 1999, 19, 185. 5. Bunin, B. A.; Plunket, M. J.; Ellman, J. A.; Poc. Natl.. Acad. Sci. USA. 1994, 91, 4708. 6. Xiang, X. D. Science. 1995, 268, 1738. 7. Briceno, G.; Chang, H.; Sun, X.; Schults, P. G.; Xiang, X.D. Science. 1995, 270, 273. 8. Lessing, P. A. Am. Ceram. Soc. Bull. 1989, 68(5), 1002. 9. Van Uitert, L. G.; Johnson, L. F. J. Chem. Phys. 1966, 44, 3514. 10. Bril, A.; Wanmaker, W. L. J. Electrochem. Soc. 1964, 111(12), 1363. 11. Blasse, G.; Bril, A. Philips Res. Repts. 1967, 22, 481. 12. Ropp, R. C. ibid. 1964, 111, 311. 13. Kiliaan, H. S.; Meijerink, A.; Blasse, G. J. Luminesce. 1986, 35, 155. 14. Hooge, F. N. J. Chem. Phys. 1966, 45(12), 4504. 15. Lammers, M. J. J.; Severin, J. W.; Blasse, G. J. Electrochem. Soc:Solid-state science and Technology. 1987, 134(9), 2356. 16. Blasse, G. Phys. Stat. Sol. (a) 1982, 73, 205. 17. De Vries, A. J.; Kiliaan, H. S.; Blasse, G. J. Solid state chem. 1986, 65, 190. 18. Blasse, G. Mater. Chem. Phys. 1987, 16, 201. 19. Dexter, D. L. J. Chem. Phys. 1953, 21, 836. 20. Belsky, A. N.; Krupa, J. C. Display. 1999, 19, 185. 21. Wybourne, B. G. Spectroscopic properties of rare earths, Interscience, New York. 1965; Bunin, B. A.; Plunket, M. J.; Ellman, J. A. Poc. Natl. Acad. Sci. USA. 1994, 91, 4708.. Journal of the Korean Chemical Society.

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O -Al O Screening of Eu - and Tb -Activated Phosphors for PDP in theSystem of CaO-Gd CaO-Gd O -Al O PDP Tb Eu   

O -Al O Screening of Eu - and Tb -Activated Phosphors for PDP in theSystem of CaO-Gd CaO-Gd O -Al O PDP Tb Eu