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<strong>Laser</strong> <strong>Lift</strong>-<strong>off</strong> <strong>Process</strong><br />
27<br />
<strong>Laser</strong> lift-<strong>off</strong> process<br />
E g : E 0 > E 1 > hν> E 2 > E 3<br />
hν<br />
Sapphire<br />
Buffer Layer<br />
N-GaN<br />
E c<br />
E 0 E 1 E 2 E 3<br />
E v<br />
Undoped GaN<br />
脈 衝 雷 射 被 吸 收 處<br />
AlN<br />
28<br />
14
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