TY - JOUR T1 - A COMPARISON OF DOPANT TYPE AND ALUMINUM MOLE FRACTION ON PERSISTENT PHOTOCONDUCTIVITY IN HEMT STRUCTURES GROWN BY MOVPE JO - SEMICOND SCI TECH PY - 1990/06/01 AU - POWELL AL AU - BUTTON CC AU - ROBERTS JS AU - ROCKETT PI ED - VL - 5 IS - 6 SP - 586 EP - 589 Y2 - 2024/12/22 ER -