Ua hoʻololi ʻo Wang Deyin mai ke Kulanui ʻo Lanzhou @ Wang Yuhua LPR iā BaLu2Al4SiO12 me Mg2 + - Si4 + pairs He kukui polū hou e hoʻohauʻoli ana i ka melemele e hoʻokuʻu ana i ka pauka fluorescent BaLu2 (Mg0.6Al2.8Si1.6) O12: Ua hoʻomākaukau ʻia ʻo Ce3+ me ka hoʻohana ʻana i Al3 + - Al3 + pairs i Ce3+ , me ka hana kuantum waho (EQE) o 66.2%. I ka manawa like me ka redshift o Ce3 + emission, hoʻonui kēia hoʻololi i ka hoʻokuʻu ʻana o Ce3 + a hoʻemi i kona kūpaʻa wela.
Ua hoʻololi ʻo Lanzhou University Wang Deyin & Wang Yuhua LPR iā BaLu2Al4SiO12 me nā Mg2 + - Si4 + pairs: He kukui polū hou e hoʻohauʻoli ana i ka melemele e hoʻokuʻu ana i ka pauka fluorescent BaLu2 (Mg0.6Al2.8Si1.6) O12: Ua hoʻomākaukau ʻia ʻo Ce3+ me ka hoʻohana ʻana i Al3 + - Al3 + pairs ma Ce3+ , me ka hana kuantum waho (EQE) o 66.2%. I ka manawa like me ka redshift o Ce3 + emission, hoʻonui kēia hoʻololi i ka hoʻokuʻu ʻana o Ce3 + a hoʻemi i kona kūpaʻa wela. ʻO nā hoʻololi spectral ma muli o ka hoʻololi ʻana o Mg2 + - Si4 +, ka mea e hoʻololi ai i ke kahua aniani kūloko a me ka symmetry positional o Ce3+.
No ka loiloi i ka hiki o ka hoʻohana ʻana i nā phosphor luminescent melemele hou no ka hoʻomālamalama laser mana kiʻekiʻe, ua kūkulu ʻia lākou e like me nā huila phosphor. Ma lalo o ka hoʻomālamalama ʻana o kahi laser polū me ka mana nui o 90.7 W mm - 2, ʻo 3894 lm ka ʻālohilohi o ka pauka fluorescent melemele, a ʻaʻohe ʻike ʻike ʻia o ka hoʻokuʻu ʻana. Ke hoʻohana nei i nā diodes laser polū (LDs) me ka mana mana o 25.2 W mm − 2 e hoʻoulu i nā huila phosphor melemele, hana ʻia ke kukui keʻokeʻo keʻokeʻo me ka ʻōlinolino o 1718.1 lm, kahi mahana kala i hoʻopili ʻia o 5983 K, he 65.0 ka papa kuhikuhi kala. a me ke kala kala o (0.3203, 0.3631).
Hōʻike kēia mau hopena i nā phosphors luminescent melemele hou i hoʻopaʻa ʻia i ka mana nui i nā noi hoʻomālamalama laser kiʻekiʻe.
Helu 1
ʻO ka hana aniani o BaLu1.94(Mg0.6Al2.8Si1.6)O12:0.06Ce3+ nānā ʻia ma ka ʻaoʻao b-axis.
Kiʻi 2
a) HAADF-STEM kiʻi o BaLu1.9(Mg0.6Al2.8Si1.6)O12:0.1Ce3+. ʻO ka hoʻohālikelike ʻana me ke ʻano hoʻohālike (insets) e hōʻike ana i nā kūlana a pau o nā cations kaumaha ʻo Ba, Lu, a me Ce ke kiʻi maopopo ʻia. b) kumu SAED o BaLu1.9(Mg0.6Al2.8Si1.6)O12:0.1Ce3+a me ka helu kuhikuhi. c) HR-TEM o BaLu1.9(Mg0.6Al2.8Si1.6)O12:0.1Ce3+. ʻO ka Inset ka HR-TEM i hoʻonui ʻia. d) SEM o BaLu1.9(Mg0.6Al2.8Si1.6)O12:0.1Ce3+. ʻO ka hoʻokomo ʻana ka histogram puʻunaue nui ʻāpana.
Helu 3
a) Hoʻoulu a hoʻokuʻu ʻia o BaLu1.94(MgxAl4−2xSi1+x)O12:0.06Ce3+(0 ≤ x ≤ 1.2). He mau kiʻi i hoʻokomo ʻia o BaLu1.94(MgxAl4−2xSi1+x)O12:0.06Ce3+ (0 ≤ x ≤ 1.2) ma lalo o ke ao. b) Ke kūlana kiʻekiʻe a me ka hoʻololi FWHM me ka hoʻonui ʻana i ka x no BaLu1.94(MgxAl4−2xSi1+x)O12:0.06Ce3+ (0 ≤ x ≤ 1.2). c) Ka pono quantum waho a me loko o BaLu1.94(MgxAl4−2xSi1+x)O12:0.06Ce3+ (0 ≤ x ≤ 1.2). d) Nā ʻōkuhi pohō o ka luminescence o BaLu1.94(MgxAl4−2xSi1+x)O12:0.06Ce3+ (0 ≤ x ≤ 1.2) ka nānā ʻana i kā lākou hoʻokuʻu kiʻekiʻe loa (λex = 450 nm).
Helu 4
a–c) ka palapala 'āina o ka wela e pili ana i ka ho'oku'u 'ana o BaLu1.94(MgxAl4−2xSi1+x) O12:0.06Ce3+(x = 0, 0.6 a me 1.2) phosphor ma lalo o 450 nm excitation. d) Ka ikaika hoʻokuʻu o BaLu1.94(MgxAl4−2xSi1+x)O12:0.06Ce3+ (x = 0, 0.6 a me 1.2) ma nā mahana wela like ʻole. e) Kiʻi hoʻonohonoho hoʻonohonoho. f) ʻO Arrhenius kūpono i ka ikaika hoʻokuʻu o BaLu1.94(MgxAl4−2xSi1+x)O12:0.06Ce3+ (x = 0, 0.6 a me 1.2) ma ke ʻano he hana o ka wela wela.
Helu 5
a) Emission spectra o BaLu1.9(Mg0.6Al2.8Si1.6) O12:0.1Ce3 + ma lalo o polū LDs excitation me okoa optical mana densities. ʻO ka hoʻokomo ke kiʻi o ka huila phosphor i hana ʻia. b) ʻAla ʻālohilohi. c) Hoʻololi maikaʻi. d) Nā hui kala. e) ʻO nā ʻokoʻa CCT o ke kumu kukui i loaʻa e ka irradiation BaLu1.9(Mg0.6Al2.8Si1.6)O12:0.1Ce3+ me nā LD polū ma nā ʻano mana like ʻole. f) Emission spectra o BaLu1.9(Mg0.6Al2.8Si1.6)O12:0.1Ce3+ ma lalo o polū LDs excitation me ka optical mana densities o 25.2 W mm−2. ʻO ka hoʻokomo ke kiʻi o ke kukui keʻokeʻo i hana ʻia e ka huila phosphor melemele me nā LD polū me ka mana o 25.2 W mm−2.
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Ka manawa hoʻouna: Dec-30-2024