Yu karpov



Keywords: yu karpov
Description: Karpov, S. Yu. Binder, M. Galler, B. and Schiavon, D. (2015), Spectral dependence of light extraction efficiency of high-power III-nitride light-emitting diodes. Phys. Status Solidi RRL, 9:

Karpov, S. Yu. Binder, M. Galler, B. and Schiavon, D. (2015), Spectral dependence of light extraction efficiency of high-power III-nitride light-emitting diodes. Phys. Status Solidi RRL, 9: 312–316. doi: 10.1002/pssr.201510073

Using the recently suggested method of processing the data on external quantum efficiency as a function of output optical power, we have estimated the dependence of light extraction efficiency of high-power light-emitting diodes (LEDs) on their emission wavelength varied between 425 nm and 540 nm. The extraction efficiency is found to increase with the wavelength from ∼80% to ∼85% in this spectral range and to correlate with the wavelength dependence of reflectivity of the large-area p-electrode being the essential unit of the LED chip design. The correlation found identifies the incomplete reflection of emitted light from the electrode as the major mechanism eventually controlling the spectral dependence of the efficiency of light extraction from the LEDs.




Photogallery Yu karpov:


Ajedrez karpov - el ajedrez. aprender y progresar


ajedrez-karpov-el-ajedrez- ...


anatoli-karpov-su-vida-y- ...


Anand contra Karpov, duelo de maestros a 300 km/h - 20minutos.es


Arica: esta tarde es el mach internacional de ajedrez entre Karpov ...


Anatoly Karpov is 64! - Chess.com


anatoli karpov - su vida y partidas - angel mar - Comprar Libros ...


Karpov Rock (@KarpovRock) | Twitter


1034235397.jpg


Anatoliy Karpov, Campen Del Mundo En Un Ajedrez Foto de archivo ...


Sitio Oficial de Alberto Samid - Ajedrez, karpov, kasparov


Ajedrez karpov - el ajedrez. aprender y progresar


lote de 4 revistas de ajedrez, ocho x ocho y ja - Comprar Revistas ...


Dmitriy Karpov Pictures, Photos & Images - Zimbio


defensa-caro-kann-2-karpov-5- ...


Valencia Origen del Ajedrez 1475


Invitan a la comunidad al Match Mundial este domingo entre Karpov ...


La estrategia en el ajedrez a karpov a matsukevich


la-estrategia-en-el-ajedrez-a- ...


Karpov y Kasparov, un clsico que se reedita | Mundo D