Preparation optimization and spectral properties of BCNO phosphors with high quantum efficiency

Ren, Chunrong; Zhang, Xinghua; Zhou, Liyu; Lu, Zunming; Lin, Jianming; Xu, Xuewen; Li, Lanlan; Zhang, Xiao; Meng, Fanbin; Zhao, Jianling; Tang, Chengchun

doi:10.1016/j.jlumin.2014.03.044

Cited by 18 publications

(14 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The yellow-green emission at 445 and 489 nm could be induced by the transition from the V N level to the carbon-related and oxygen defect levels (2–4 eV) below the conduction band of h-BN [ 69 – 71 ]. As the C composition increased in BGH03, the emission wavelength was further red-shifted to 506 nm, consistent with literature reports [ 73 , 74 ]. The stacked photoluminescence (PL), UV absorbance, and Tauc plot for different BGH series prepared in this study are presented in Additional file 1 : Fig.…”

Section: Resultssupporting

confidence: 91%

Boron Carbon Oxynitride as a Novel Metal-Free Photocatalyst

et al. 2021

View full text Add to dashboard Cite

Boron-based nanomaterials are emerging as non-toxic, earth-abundant (photo)electrocatalyst materials in solar energy conversion for the production of solar hydrogen fuel and environmental remediation. Boron carbon oxynitride (BCNO) is a quaternary semiconductor with electronic, optical, and physicochemical properties that can be tuned by varying the composition of boron, nitrogen, carbon, and oxygen. However, the relationship between BCNO's structure and -photocatalytic activity relationship has yet to be explored. We performed an in-depth spectroscopic analysis to elucidate the effect of using two different nitrogen precursors and the effect of annealing temperatures in the preparation of BCNO. BCNO nanodisks (D = 6.7 ± 1.1 nm) with turbostratic boron nitride diffraction patterns were prepared using guanidine hydrochloride as the nitrogen source precursor upon thermal annealing at 800°C. The X-ray photoelectron spectroscopy (XPS) surface elemental analysis of the BCNO nanodisks revealed the B, C, N, and O compositions to be 40.6%, 7.95%, 37.7%, and 13.8%, respectively. According to the solid-state 11B NMR analyses, the guanidine hydrochloride-derived BCNO nanodisks showed the formation of various tricoordinate BNx(OH)3−x species, which also served as one of the photocatalytic active sites. The XRD and in-depth spectroscopic analyses corroborated the preparation of BCNO-doped hexagonal boron nitride nanodisks. In contrast, the BCNO annealed at 600 °C using melamine as the nitrogen precursor consisted of layered nanosheets composed of B, C, N, and O atoms covalently bonded in a honeycomb lattice as evidence by the XRD, XPS, and solid-state NMR analysis (11B and 13C) analyses. The XPS surface elemental composition of the melamine-derived BCNO layered structures consisted of a high carbon composition (75.1%) with a relatively low boron (5.24%) and nitrogen (7.27%) composition, which indicated the formation of BCNO-doped graphene oxides layered sheet structures. This series of melamine-derived BCNO-doped graphene oxide layered structures were found to exhibit the highest photocatalytic activity, exceeding the photocatalytic activity of graphitic carbon nitride. In this layered structure, the formation of the tetracoordinate BNx(OH)3−x(CO) species and the rich graphitic domains were proposed to play an important role in the photocatalytic activity of the BCNO-doped graphene oxides layered structures. The optical band gap energies were measured to be 5.7 eV and 4.2 eV for BCNO-doped hexagonal boron nitride nanodisks and BCNO-doped graphene oxides layered structures, respectively. Finally, BCNO exhibited an ultralong photoluminescence with an average decay lifetime of 1.58, 2.10, 5.18, and 8.14 µs for BGH01, BGH03, BMH01, BMH03, respectively. This study provides a novel metal-free photocatalytic system and provides the first structural analysis regarding the origin of BCNO-based photocatalyst. Graphical Abstract

show abstract

Section: Resultssupporting

confidence: 91%

Boron Carbon Oxynitride as a Novel Metal-Free Photocatalyst

et al. 2021

View full text Add to dashboard Cite

show abstract

“…2a) show the absorption peaks of various vibration modes in the 500-4000 cm À1 region for BCNO:Mn samples with various Mn concentrations. The B-N linkage, vibration at $789 cm À1 for the B-N-B vibration and $1400 cm À1 for B-N stretching [16][17][18] were prominent in all the samples. The absorption peaks at $980 cm À1 , $1010 cm À1 , and $1200 cm À1 correspond to the N-B-O vibration, B-O-B, and B-O bonds, respectively.…”

Section: Structural and Optical Properties Of Bcno:mn Phosphor Materialsmentioning

confidence: 86%

A red emitting of manganese-doped boron carbon oxynitride (BCNO) phosphor materials: facile approach and photoluminescence properties

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Generally, these properties could be improved by better crystallization and purifying materials. Current challenges on phosphors research to obtain desired phosphors for lighting application is briefly reviewed in Table 1 respectively on luminescent features and high quantum efficiency [2][3][4][5][6][7], reduced of RE usage for host phosphor [8][9][10][11][12][13][14][15][16][17], morphology and size [18][19][20][21][22][23][24][25][26][27][28][29][30], preparation/synthesis methods [9,[31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48], and new phosphors …”

Section: Phosphor For Lighting Applicationsmentioning

confidence: 99%

“…Since several raw material of phosphors are highly demanding material, in turn the price increases. Therefore effort on replacing rare earth materials as host phosphors currently intense research was conducted to gain a non RE-based host phosphor [8][9][10][11][12][13][14][15][16][17]. However, some of them still use RE as doping element.…”

Section: Phosphor For Lighting Applicationsmentioning

confidence: 99%

Challenging and development of phosphors for lighting applications

Panatarani¹,

Joni²

2016

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. Phosphors (inorganics luminescent material) have been extensively investigated due to their potential application especially for lighting. This article briefly reviews the developments of the phosphors for lighting application. Research and development of phosphors for the application of energy-saving lamps have been developed in the Laboratory of Instrumentation System and Functional Materials Processing, Department of Physics, Universitas Padjadjaran. To fulfill the desired feature for lighting application, we developed host-center type phosphor with compositional modifications prepared by spray pyrolysis and simple solution routes. In order to meet the industry requirement with high production rate, currently we scaled up the spray pyrolysis utilized with a pulse combustion reactor.

show abstract

Preparation optimization and spectral properties of BCNO phosphors with high quantum efficiency

Cited by 18 publications

References 29 publications

Boron Carbon Oxynitride as a Novel Metal-Free Photocatalyst

Boron Carbon Oxynitride as a Novel Metal-Free Photocatalyst

A red emitting of manganese-doped boron carbon oxynitride (BCNO) phosphor materials: facile approach and photoluminescence properties

Challenging and development of phosphors for lighting applications

Contact Info

Product

Resources

About