Tag - InGaN/GaN

V-shaped defects in InGaN/GaN multiquantum wells

V-shaped defects in InGaN/GaN multiquantum wells InGaN/GaN multiquantum well (MQW) structures have been grown on (0001) sapphire substrate by metalorganic chemical vapor deposition. From cross-sectional transmission electron microscopy (TEM), a number of V-shaped defects has been observed on the surface which are associated with mixed or pure-edge screw dislocations, as [...]