Enhance Color Rendering Index via Full Spectrum Employing the Important Key of Cyan Phosphor

• DOI: 10.1021/acsami.6b10233
• Publication Date: 2016-11-01T16:26:42Z
• Authors: Mu-Huai Fang; Chenchen Ni; Xuejie Zhang; Yi-Ting Tsai; Sebastian Mahlik; Agata Lazarowska; Marek Grinberg; Hwo-Shuenn Sheu; Jyh-Fu Lee; Bing-Ming Cheng; Ru-Shi Liu
• Keywords: Cyan; Color rendering index; High color; Ultraviolet; Visible spectrum

A new concept called "full-spectrum lighting" has attracted considerable attention in recent years. Traditional devices are usually combined with ultraviolet-light-emitting diode (LED), red, green, and blue phosphors. However, a cyan cavity exists the 480-520 nm region. Hence, phosphors needed to compensate for cavity. (Sr,Ba)5(PO4)3Cl:Eu2+ feature an extremely unique tunable photoluminescence spectrum. Nevertheless, tuning mechanisms of these remain unclear. In this study, we elucidate mechanism cation size-controlled activator uneven-occupation reoxidation This could help tune optical properties related apatite families structures multiple sites strongly uneven occupation activators cations. Finally, package LED device is constructed show that both color rendering index Ra R9 higher than 95. Thus, be potential candidate full-spectrum lighting.