A White‐Light‐Emitting Borate‐Based Inorganic–Organic Hybrid Open Framework

Green-light-emitting phase in Ba3MgSi2O8:Eu2+, Mn2+ full-color phosphor for white-light-emitting diodes via addition of Si3N4

“…1). Of these, two broad band emissions peaked at around ∼ 443 and ∼507 nm are attributed to the typical transitions from 5d to 4f energy levels for Eu 2+ , while red-band-emission peaked at ∼ 612 nm is assigned to the transition from 4 T to 6 A of 3 d 5 energy level for Mn 2+ . As shown in Table 1, a slight red-shift of PL peaks from 442.6 to 449.4 nm can be traced as the amount of Si 3 N 4 increases.…”

“…Many of such single-component full-color-emitting phosphors have emerge very recently, ranging from semiconducting nanocrystals [1,2], organic compound [3], complex [4,5], hybrid [6] to rare earth doped inorganic hosts [7][8][9][10][11][12][13][14][15][16][17][18][19][20] as well. As to the present interest in a full-color phosphor, A 3 MgSi 2 O 8 :Eu 2+ , Mn 2+ (A = Ba, Sr, Ca) [21], we have identified that, a green-band-emission peaked at ∼505 nm does not originate from Ba sites in Ba 3 MgSi 2 O 8 host lattice but from those in a newly formed orthosilicate phase, Ba 2 SiO 4 [22,23].…”

Synthesis and structure of [C6N4H20]0.5[B5O6(OH)4]: A new organically templated pentaborate with white-light-emission

“…Thus far, most research work on SEC intrinsic white-light-emitting phosphors basically focuses on polymers, such as Si-based materials [24][25][26][27][28], polyfluorene derivatives [29][30][31], and inorganic materials doped with rare earth metal ions [32][33][34][35][36]. In contrast, the field of SEC white-lightemitting borate phosphors have seldom been investigated, only one example has been reported so far, namely (H 2 en) 2 (Hen) 2 B 16 O 27 (en¼ethylenediamine) [23]. In this work, we report the synthesis and crystal structure of a new organically templated pentaborate, [C 6 N 4 H 20 ] 0.5 [B 5 O 6 (OH) 4 ] (1a).…”

“…The most commercially popular white-light-emitting devices usually contain multiple emitting components, which have the following drawbacks: for example, rather complicated and expensive, white-emitting color changes with input power and poor stability. The way to solve these problems is using singleemitting-component (SEC) phosphors [23]. Thus far, most research work on SEC intrinsic white-light-emitting phosphors basically focuses on polymers, such as Si-based materials [24][25][26][27][28], polyfluorene derivatives [29][30][31], and inorganic materials doped with rare earth metal ions [32][33][34][35][36].…”

AlB3O6(OH)·0.5(C2H10N2): An organically templated aluminoborate with hnb-layer structure

“…Recently, hydrothermal methods were proposed for the formation of borate materials, which allows the use of organic additives (organic amines [6][7][8][9][10][11][12][13][14][15] or transition metalcomplex [16][17][18][19]) as "template". It is noteworthy that the presence of the organic species can further enhance the possibilities for synthesizing novel borates.…”