Home > News > Industrial News > Luminescent Nanocrystals BAM Develops Methods for Quantitative Measurements
Company News
Exhibition News
Industrial News
Latest News

How to Replace a GU10 Bulb?

How to replace a GU10 bulb:
1. Squeeze the clip (or use sucker provided) to release the bulb from the fitting
2. Turn bulb counter clockwise to ‘unhook’ from the power supply
3. Twist new bulb clockwise into position
4. Replace clip

LED Bulbs Vs. CFL Bulbs: Which is Best for Me?

Before we had LEDs, there were compact fluorescent lamps, or CFLs for short. CFLs are fluorescent lamps that emit light from a mix of phosphors inside...

Are LED bulbs energy efficient?

Not only that! Actually, their recent bump in popularity may make you think that these energy efficient bulbs are a new technology. Not really- light ...

Advantages and disadvantages of LED lights

GU10 LED Spotlight manufacturer china Vintage LED bulbs wholesale Plastic with Aluminum LED bulb supplier  advantage: 1. Small size. The LED is basica...

How to choose a good LED lighting?

1.LED brightness is different, the price is different. LEDs for LED luminaires should be Class I laser class. 2.Strong anti-static LED, long life, an...

The key to LED lighting technology lies in these

1.Optical performance (light distribution) The optical performance of LED lamps mainly involves performance requirements in terms of photometry, spect...

UVC LED Embedded Disinfecting Face Mask Reaches $1M Fund on Crowdfunding Platform

We have now learned that COVID-19 is transmitted through droplets or surfaces contact of the infected individuals. As a result, wearing mask and inten...

The past and present of LED filament bulbs(part 2)

Where does the LED filament lamp come from? As early as 2008, Nippon Nippon Lamps introduced a filament lamp imitation of traditional incandescent lam...

How to choose LED light bulbs?

Here are a few things to consider when choosing LED light bulbs...
Efficiency, Colour Temperature, Colour Rendering, Heat Output, lifetime, etc.

LED color temperatures and how to choose the best ones

LED color temperatures and how to choose the best ones
What is a Kelvin?
What are LED color temperatures?
How to choose the perfect color temperature
Looking for affordable LED lights that’ll dramatically reduce your energy bill?

Yujileds® LED Matrix Solution with Full-color Functions

Yujileds® Matrix aims to provide high-density illumination with high-performance white, tunable-white light and full-color lighting options for a var...

2019 Global LED Display Market Outlook

2019 Global LED Display Market Outlook - Cinema, Rental Market and Price Trends According to the latest research report "2019 Global LED Display Marke...

Innotech wish you happy thanksgiving day!

It is Thanksgiving day today, a public holiday celebrated on the fourth Thursday of November in the United States, also it is a harvest festival today...

Trick or treat! Money or eat! INNOTECH Wish you a happy Halloween!

"Trick or treat! Money or eat!"  Here all the members from INNOTECH wish you a happy Halloween! Innotech is a professional manufacturer and exporter s...

Which five major factors will affect the life of LED lights?

If you use a light source for a long time, you get huge economic benefits and a reduced carbon footprint. Depending on the system design, flux reducti...
Contact Us
Office:#1201, 12/F., Anhui building, No.6007 Shennan Road, Shenzhen, China.
Tel: +86-755 8276 9313, 8276 9316, Fax: +86-755-8276 9319
Wechat: +8618938659461, Whatsapp: +8618938659461
Email: info@innolitech.com, Website: www.ledlightingsupplierchina.com Contact Now
On-line catalogue


Luminescent Nanocrystals BAM Develops Methods for Quantitative Measurements

Innolite LED Professional 2021-08-12 16:46:56

Tiny luminescent particles are used in more and more products today: from smartphones to OLED televisions to car headlights. For industry, exact knowledge of the luminescence efficiency is crucial. The Bundesanstalt für Materialforschung und -prüfung (BAM) is developing reliable measurement methods for this purpose, thus closing an important gap in standardization.

Vintage Edison LED light bulb manufacture

Luminescent materials are finding more and more applications in daily life: They are used in medical technology in diagnostic procedures, in photovoltaics, in security codes on banknotes, in the displays of LED or OLED televisions, smartphones or e-book readers and in lighting technology.

The trend here is from particles in the micrometer range to those with nanometer sizes, which have particularly advantageous scattering properties and can show a high luminescence yield.

The decisive factor for all applications of these materials is the efficiency of their photoluminescence, in short: their luminescence efficiency. This quantity presents a direct measure of the number of light quanta or photons that the particles emit compared to those they absorb. This is also referred to as the luminescence quantum yield.

This key parameter determines the brightness of the substances. It is therefore a decisive indicator for companies that manufacture or use such materials for evaluating and comparing the quality, performance and suitability of different luminous particles.

However, to date there is only one international standard for determining the quantum yield, which depends on many external factors such as temperature or the surrounding medium. This covers only transparent (non-scattering) samples that are comparatively easy to measure. More complicated measurements of scattering particles are not covered. But particularly these materials are increasingly relevant for industrial applications.

This imposes increasing problems for companies that produce luminescent functional materials such as typical phosphors and so-called converter materials or use them in the field of lighting and display technology. They need reliable methods for determining the quantum yield for quality and product control. Developing these methods by themselves would be too tedious even for large companies.

BAM whose mandate includes the promotion of German industry, has been studying luminescent materials for many years, developing reference methods and materials for the life and material sciences and providing reference data. Now BAM is launching a joint project that is intended to bring scientific results quickly into standardization and thus into application. The project is financed by the Federal Ministry of Economics within the framework of the funding programme "Knowledge and Technology Transfer through Patents and Standards".

In cooperation with Schott AG, which has been producing optical materials for more than 100 years, BAM will develop reliable methods for determining the quantum yield of scattering luminescent particles and materials. Special focus is laid on materials of particular economic interest: Novel converter materials which, for example, when combined with blue laser and LED light, give car headlights a yellow glow more comfortable for humans. These materials are in high demand in the industry for many different applications.

Schott AG will provide luminescent materials directly from the application and, together with BAM, will develop measurement procedures suitable for industrial process control. These measurement procedures will be eventually standardized and timely transferred to international standardization.

"With this joint project we want to close an important gap in order to strengthen the market position of German companies in this field in the medium term," says Ute Resch-Genger from BAM, who is leading the project.