CAJ | 학술논문

讨论了基于水溶性感光胶的荧光粉的涂层技术,利用粉浆法,在蓝光LED芯片的表面获得了荧光粉平面涂层.证实了得到的白光LED的光提取效率与粉浆中各成份的浓度和相应的比例有关,并在实验的基础上,采用了一些切实切可行的措施来增加器件的光提取效率.得到的白光LED在700 mA加速老化168 h后,其光能量为初始时的95.95%.
토론료기우수용성감광효적형광분적도층기술,이용분장법,재람광LED심편적표면획득료형광분평면도층.증실료득도적백광LED적광제취효솔여분장중각성빈적농도화상응적비례유관,병재실험적기출상,채용료일사절실절가행적조시래증가기건적광제취효솔.득도적백광LED재700 mA가속노화168 h후,기광능량위초시시적95.95%.
Slurry method based on a phosphor suspension in a water-soluble photoresist was discussed.A conformal-coating phosphor layer was deposited on the surface of LEDs.The luminous performance of power white LEDs was found to be mainly depending on the concentration and ratio of ingredients in slurry and the structure of coating layer.In this paper,the parameters were investigated and some advices,which were suggested to improve the performance,were proven to be effective in our experiment.The aging testing of LEDs with this slurry method showed that the luminous flux was 95.95% of that of the beginning after the LED was lightened for 168 h at 700 mA.