NREL develops green LEDs to help improve the quality of LED lighting

NREL lasers used to analyze light emitting properties gallium indium phospate alloys
One day, LED lights will be common throughout your house. But right now they’re not only far too expensive, the quality of the light they give off basically stinks.  NREL (the National Renewable Energy Laboratory) is working to change that.  They’ve come up with a way to get LEDs to generate green light.  That may not sound like a breakthrough, but in order to get LEDs to give off light that appears white and natural looking, you need at a minimum the colors red, blue, and green. Red and blue LEDs have been around for awhile now, but until now, nobody has been able to come up with a good green LED.  (The LED lights that you can buy now fake the green part by aiming the blue light at a phosphor, which then emits green light.  Not only does this trickery not look all that great, it also is a very inefficient process).

NREL researchers, led by Angelo Mascarenhas, used their expertise in the making of solar cells that capture light from across the color spectrum to develop the new LEDs.  By tuning the layer of gallium indium phosphide in the LED, they were able to produce radiant deep green light on their very first try.  Adding the new green LED to blue and red LEDs produces better quality and more efficient white light. For the next step, NREL is now trying to produce a fourth color to make the white light even whiter.  They expect to be able to produce in a couple of years an LED that has a color-rendering index of over 90. By comparison, most CFLs have a color rendering index in the mid 80’s, and a normal incandescent light bulb has a color rendering index of about 95.

17 thoughts on “NREL develops green LEDs to help improve the quality of LED lighting

  1. Pingback: Tweets that mention NREL develops green LEDs to help improve the quality of LED lighting | Alternative Energy Info -- Topsy.com

  2. Led lights are great because they are long lasting and consumes less electricity..*:

  3. Incandescent light bulbs will soon be phased out because they waste a lot of energy..;,

  4. GREEN LED’s again!!! good going NREL. you are the master of future generation

  5. Bravoled Lighting Manufacturing Co., Limited was founded in 2006 and specializes in development, design, manufacturing and sales of indoor and outdoor LED lighting fixtures, is located in Shenzhen with workshop of 25, 000 square feet and 100 employees, products are mainly shipped to Europe, USA, Canada and Australia etc., monthly capacity is approx. 30, 000 units, As one of professional LED lighting products manufacturers, Bravoled owns advanced production facilities and strong product development capabilities, always pursuits high product quality and best service level, constant improvement and innovation, Bravoled Indoor lines mainly cover LED tube light, LED spotlight, LED global bulb, LED Ceiling light etc. outdoor lines mainly cover: LED floodlight, LED streetlight, LED high bay light, Lighting source are always imported brand name such as, CREE, SemiLED, Bridgelux and Lumenmax etc., all of products are IEC and EMC standard qualified and CE,Rhos,C-tick FCC certified, some of them are UL certified as well.

  6. Dear Purchasing Manager,
    Glad to write to you! This is Rainbow from Shenzhen Sai Fei Rui Sen Technology Co., Ltd. in China.
    We’re the MANUFACTURER of high quality LED Lighting with competitive price, and hope to find a way to cooperate with you!
    FREE SAMPLES can be sent on request. Call me, let’s talk more!
    Thanks and best regards,

  7. But there are other types of trendy surfaces such as quartz, Corian, slate and marble that is re-emerging into kitchen designs.
    If you are using your table to entertain the visitors, a removable leaf or extension should be used.
    then the next thing to look at is hiding these appliances
    with clever cabinetry.

  8. My brother suggested I might like this website. He was entirely right.
    This post truly made my day. You cann’t imagine just how much time I had spent for this
    information! Thanks!

  9. I visit daily a few websites and websites to read content, but this web site offers quality based posts.

  10. Appreciating the time and effort you put into your site and in depth information you provide.
    It’s good to come across a blog every once in a while that isn’t the same unwanted rehashed material.
    Wonderful read! I’ve saved your site and I’m adding your RSS feeds to my Google account.

  11. Hello! I know this is somewhat off topic but I was wondering if you knew where I could locate a captcha plugin for my comment form? I’m using the same blog platform as yours and I’m having problems finding one? Thanks a lot!

  12. Highly energetic article, I enjoyed that a lot. Will there be a part 2?

  13. The amount of cash will I make through affiliate promotion. You’ll receive 14 days
    free, and 1,000 ad impressions to see just how effective this advertising
    strategy is. But most importantly, the cost of maintaining the maintenance on those vehicles can be costly.

  14. I ᥱvery time еmɑileԁ thҺіs աеbsіtе
    ρiѕt раցе ttο аⅼl mү
    frіends, fօг tһe геaѕοn tҺat if lіқе ttο гead іt
    afteгrѡaгԀ mʏʏ lіnkѕ
    wilⅼ tοо.

    ᕼегᥱ iѕ mу ᴡeƅ pаᴡǥе :
    : wealth attraction

  15. I blog often and I genuinely appreciate your information. This article has truly peaked my interest. I am going to book mark your site and keep checking for new information about once a week. I subscribed to your RSS feed as well.|

  16. Attractive component of content. I just stumbled upon your website and in accession capital to claim that I get actually loved
    account your blog posts. Anyway I’ll be subscribing to your feeds and even I fulfillment you
    get entry to persistently rapidly.

  17. naturally like your web-site however you need to check the spelling on several of
    your posts. Several of them are rife with spelling problems and I find it very troublesome to inform the truth nevertheless I’ll
    certainly come back again.

Leave a Reply

Your email address will not be published. Required fields are marked *

Help

WordPress theme: Kippis 1.15