APPLIED PHYSICS: Integrating Color Displays

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Science  07 Feb 2003:
Vol. 299, Issue 5608, pp. 785b
DOI: 10.1126/science.299.5608.785b

Electroluminescence occurs when carriers are injected into wide band-gap semiconductors such as gallium nitride (GaN) and excite light-emitting centers. The wavelength of the emitted light can be controlled with rare earth dopants, and thus there is considerable effort being made toward developing these materials for large-area flat-panel displays. Wang et al. introduce a processing route involving several steps of deposition and patterning in which a lift-off technique is used, with liquid glass as the sacrificial layer at each step. Their process is compatible with the high-temperature growth of the GaN layers and conventional wet-processing techniques. They demonstrate the fabrication of laterally patterned red-, green-, and blue-emitting regions on a single substrate. — ISO

Appl. Phys. Lett. 82, 502 (2003).

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