The Exploration of New Phosphors by Mineral Inspired Methodology Using American Mineral Society Database | Original Article

ABSTRACT:

White LEDs are labelled as solid state semiconductor lighting, which will act as future generation lighting to replace conventional lamp and backlight due to the advantages of low power consumption, free of mercury, high response, no thermal radiation, long life time, high stability and so on. Currently available phosphor in the market mainly they are high correlated colour temperature, low Colour Rendering Index, synthesis process is difficult. Phosphor-converted white light-emitting diodes for indoor illumination need to be warm white (i.e., correlated colour temperature, 4000 K) with good colour rendition (i.e., colour rendering index 80). For the synthesis of new phosphor, the concept, as well as the methodology of using a mineral-inspired approach in combination with solution parallel synthesis (SPS) for exploration of new phosphors among Na/K, Sr (Ba)/SC silicate along with the artificial library, is reported. Moreover, the compositional tuning of the properties of extended solids through solid solution; sometimes referred to as the game of x and y, as, for example, in K1-xNaxSr1-yBayScSi2O7 is also demonstrated. Our expected out come to develop new phosphor using mineral inspired methodology for develop high luminous efficiency and CRI of the phosphor.