Optoelectronic devices based on ZnGeN.sub.2 integrated with grou

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With particular semiconductor material

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257 94, 257 96, 257200, 257613, 257615, 257616, 438 27, 438 29, 438 46, 438 47, 372 44, 372 45, H01L 3300

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active

061216399

ABSTRACT:
Group III-V nitride semiconductors are used as light emitters for other optoelectronic devices. To provide the desired range of bandgap and band offsets in heterostructure devices, InGaN layers have to be grown. InGaN layers are difficult to grow because of lattice mismatch with GaN, and because of problems with homogeneity. Thus, ZnGeN.sub.2 is provided as the active layer in a blue or blue-green light-emitting device. ZnGeN.sub.2 has a bandgap in the blue region of the spectrum and is almost lattice matched to GaN, making it an ideal candidate for integration with group III-V nitrides.

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