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A novel red phosphor for white light emitting diodes |
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| Authors: | Yunsheng Hu Weidong Zhuang Hongqi Ye Donghui Wang Shusheng Zhang Xiaowei Huang |
| Affiliation: | aNational Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, Grirem Advanced Materials Co. Ltd., No. 2 Xinjiekouwai Street, Beijing 100088, China bCollege of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China |
| Abstract: | A novel red phosphor, CaMoO4:Eu3+, has been developed for white light emitting diodes (LEDs). The phosphor was prepared by using oxides in air and its luminescent properties have been investigated. The excitation and emission spectra indicate that this phosphor can be effectively excited by ultraviolet (UV) (394 nm) and blue (464 nm) light, and exhibits a satisfactory red performance (616 nm), nicely fitting in with the widely applied UV or blue LED chips. The novel phosphor is much more stable and has stronger emission intensity than the sulfide red phosphors used in white LEDs. |
| Keywords: | Phosphor Semiconductor Luminescence |
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