摘要:
A single chip type white light LED device includes a first semiconductor layer of a first doping type, a ZnMnSeTe (Zinc Manganese Selenium Tellurium) red light quantum well, a first barrier layer disposed on the ZnMnSeTe red light quantum well, a green light emitting layer including green light quantum dots disposed on the first barrier layer, a second barrier layer disposed on the green light emitting layer, a blue light emitting layer including blue light quantum dots disposed on the second barrier layer, a third barrier layer disposed on the blue light emitting layer, and a second semiconductor layer disposed on the third barrier layer.
摘要:
A technique to grow high quality and large area ZnSe layer on Si substrate is provided, comprising growing GexSi1-x/Ge epitaxial layers on Si substrate by using ultra-high vacuum chemical vapor deposition (UHVCVD), and finally growing a ZnSe film on top Ge buffer layers. Two concepts are applied in the process of this invention, the first one is to block the dislocations generated from GexSi1-x epitaxial layers and to terminate the propagated upward dislocations by using strained interfaces, accordingly the dislocation density of ZnSe layer is greatly reduced and the surface roughness is improved; the second concept is to solve the problems of anti-phase domain due to growth of polar materials on non-polar material using off-cut angle Si substrate, and that is free from diffusion problems between different atoms while generally growing ZnSe layers on Si substrate.
摘要翻译:提供了在Si衬底上生长高质量和大面积ZnSe层的技术,其包括在Si衬底上生长Ge x Si x Si 1-x / Ge外延层, 高真空化学气相沉积(UHVCVD),最后在顶部Ge缓冲层上生长ZnSe膜。 在本发明的方法中应用了两个概念,第一个概念是为了阻止由Ge x 1 Si 1-x N外延层产生的位错并终止传播的向上位错 通过使用应变界面,ZnSe层的位错密度大大降低,表面粗糙度提高; 第二个概念是解决极性材料在非极性材料上使用偏角Si衬底生长的反相域问题,并且在不同原子之间没有扩散问题,而在Si衬底上通常生长ZnSe层 。
摘要:
A technique to grow high quality and large area ZnSe layer on Si substrate is provided, comprising growing GexSi1−x/Ge epitaxial layers on Si substrate by using ultra-high vacuum chemical vapor deposition (UHVCVD), and finally growing a ZnSe film on top Ge buffer layers.Two concepts are applied in the process of this invention, the first one is to block the dislocations generated from GexSi1−x epitaxial layers and to terminate the propagated upward dislocations by using strained interfaces, accordingly the dislocation density of ZnSe layer is greatly reduced and the surface roughness is improved; the second concept is to solve the problems of anti-phase domain due to growth of polar materials on non-polar material using off-cut angle Si substrate, and that is free from diffusion problems between different atoms while generally growing ZnSe layers on Si substrate.
摘要翻译:提供了在Si衬底上生长高质量和大面积ZnSe层的技术,其包括在Si衬底上生长Ge x Si x Si 1-x / Ge外延层, 高真空化学气相沉积(UHVCVD),最后在顶部Ge缓冲层上生长ZnSe膜。 在本发明的方法中应用了两个概念,第一个概念是为了阻止由Ge x 1 Si 1-x N外延层产生的位错并终止传播的向上位错 通过使用应变界面,ZnSe层的位错密度大大降低,表面粗糙度提高; 第二个概念是解决极性材料在非极性材料上使用偏角Si衬底生长的反相域问题,并且在不同原子之间没有扩散问题,而在Si衬底上通常生长ZnSe层 。