LED design has evolved to increase extraction efficiency, but all forms have the same basic epilayer structure (a). Metallic contacts can be added to this structure, but they block the light generated by the active region and reduce the effective - PowerPoint PPT Presentation

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LED design has evolved to increase extraction efficiency, but all forms have the same basic epilayer structure (a). Metallic contacts can be added to this structure, but they block the light generated by the active region and reduce the effective

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LED design has evolved to increase extraction efficiency, but all forms have the same basic epilayer structure (a). Metallic contacts can be added to this structure ... – PowerPoint PPT presentation

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