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目前使用的氮化物LED一般生长在蓝宝石衬底上.该技术存在几个严峻的问题:一方面,蓝宝石价格昂贵,使得氮化物器件生产成本高昂;另一方面,蓝宝石热导率低,不利于开发高功率氮化物器件;再次,基于蓝宝石上的LED核心技术几乎已全部欧美国家垄断并申请了专利.
新型衬底上的蓝白光LED研究进展
【摘 要】
：
目前使用的氮化物LED一般生长在蓝宝石衬底上.该技术存在几个严峻的问题:一方面,蓝宝石价格昂贵,使得氮化物器件生产成本高昂;另一方面,蓝宝石热导率低,不利于开发高功率氮化物器件;再次,基于蓝宝石上的LED核心技术几乎已全部欧美国家垄断并申请了专利.
【机 构】
：
华南理工大学
【出 处】
：
2014中国功能材料科技与产业高层论坛
【发表日期】
：
2014年2期
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