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General test method of absolutely measuring the quantum efficiency of phosphor for photoluminescence
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Basic data
| Standard ID | GB/T 44454-2024 (GB/T44454-2024) |
| Description (Translated English) | General test method of absolutely measuring the quantum efficiency of phosphor for photoluminescence |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | A42 |
| Classification of International Standard | 17.180.99 |
| Word Count Estimation | 14,121 |
| Date of Issue | 2024-09-29 |
| Date of Implementation | 2025-01-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 44454-2024: General test method of absolutely measuring the quantum efficiency of phosphor for photoluminescence
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 17.180.99
CCSA42
National Standard of the People's Republic of China
Photoluminescence quantum efficiency of fluorescent materials
Absolute measurement universal detection method
Released on 2024-09-29
2025-01-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Machinery Industry Federation.
This document was prepared by the National Technical Committee on Optics and Photonics (SAC/TC103) and the National Technical Committee on Nanotechnology Standardization
(SAC/TC279) jointly managed.
This document was drafted by. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun University of Science and Technology, Tianmei Instrument Laboratory
Equipment (Shanghai) Co., Ltd., China University of Metrology, and China Ordnance Industry Standardization Institute.
The main drafters of this document are. Zhang Ligong, Luo Yongshi, Lu Yan, Ma Yuejia, Zhao Haifeng, Liu Quansheng, Zhang Hairong, Zhang Junjie and Zhu Yi.
Photoluminescence quantum efficiency of fluorescent materials
Absolute measurement universal detection method
1 Scope
This document describes a general method for the absolute measurement of the internal and external quantum efficiency of photoluminescence of fluorescent materials.
This document is applicable to fluorescence spectra in the ultraviolet, visible and near-infrared bands (200nm~1100nm) and excitation light wavelengths in the range of
Testing of solid and liquid fluorescent materials in the UV and visible bands (200nm~780nm).
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 5838.1-2015 Phosphors Part 1.Terminology
GB/T 6379.2-2004 Accuracy (trueness and precision) of measurement methods and results Part 2.Determination of standard measurement methods
Basic methods for repeatability and reproducibility
3 Terms and definitions
The terms and definitions defined in GB/T 5838.1-2015 and the following apply to this document.
3.1
When a fluorescent material is excited, the total number of fluorescent photons emitted in all directions of space is proportional to the total number of photons absorbed by the excitation light.
ratio.
[Source. GB/T 39492-2020, 3.2, modified]
3.2
When a fluorescent material is excited, the ratio of the total number of fluorescent photons emitted in all directions in space to the total number of incident photons of the excitation light.
[Source. GB/T 39492-2020, 3.1, modified]
3.3
Sample Chamber cel
A general term for containers used to hold samples to be tested, reference samples, etc., suitable for spectral testing, and matched with integrating spheres.
3.4
Reference
A white standard powder or colorless solvent with high reflectivity for spectroscopic determination of excitation light.
Note. White standard powder is usually barium sulfate or aluminum oxide powder. For the solution, choose a non-fluorescent solvent that is suitable for dispersing fluorescent materials.
3.5
High reflectivity white board used to measure the excitation light spectrum.
Note. Such as alumina, polytetrafluoroethylene and other standard white boards.
[Source. GB/T 39492-2020, 3.5, modified]
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