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    • 6. 发明授权
    • LIGHT EMITTING DEVICE
    • 发光装置
    • KR100931483B1
    • 2009-12-11
    • KR20090053181
    • 2009-06-16
    • LEE CHUNG HOONKIM DAE WONKAL DAE SUNGNAM KI BUM
    • LEE CHUNG HOONKIM DAE WONKAL DAE SUNGNAM KI BUM
    • H01L33/00
    • H01S5/34333B82Y20/00H01L33/06H01L33/32H01S5/1053H01S5/341H01S5/3412
    • PURPOSE: A light emitting device is provided to solve a problem that quantum efficiency is degraded due to a crystal defect by including a carrier trap portion in at least one layer. CONSTITUTION: In a light emitting device, a first semiconductor layer(15) is formed on a substrate(11). A buffer layer(13) is arranged between the substrate and the semiconductor layer. A second semiconductor layer(19) is formed on the semiconductor layer. A multi quantum well structure includes at least one barrier(17a) and well layer(17b) which is between the first semiconductor layer and the second semiconductor layer. A bend gap energy is decreased from the outer of the carrier trap to the center of it. The carrier trap is buried into inside of the well.
    • 目的:提供一种发光器件,用于通过在至少一层中包含载流子捕获部分来解决量子效率由于晶体缺陷而劣化的问题。 构成:在发光器件中,在基板(11)上形成第一半导体层(15)。 在衬底和半导体层之间布置缓冲层(13)。 在半导体层上形成第二半导体层(19)。 多量子阱结构包括位于第一半导体层和第二半导体层之间的至少一个势垒(17a)和阱层(17b)。 弯曲间隙能量从载体陷阱的外部减小到其中心。 载体陷阱埋在井内。