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ocr_text: Combining MBE & MOCVD\n—— MBE / MOCVD 1\n185 + II MOCVD\nPo wo ae 0 a0 so 0 700 I VBE / MOCVD ‘oy\nFigure 6. Vertical buffer leakage current for hybrid MBE/MOCVD (red) Figure 7. Carrier density and mobility obtained for both samples from\nand MOCVD (black) samples. Inset showing measurement setup. Hall measurements\n» Vertical buffer leakage (I-V): MOCVD-sample shows 1x10-4 Acm-2 current density @ 350V\n& hybrid MBE/MOCVD-sample has the same J @ 445 V yielding an increase of 27%.\nmmm) The hybrid growth reduces the vertical buffer current. The initial growth conditions\nimpact the voltage-blocking capabilities (@ 600 V 100x lower J for MBE/MOCVD structure).\n» Hall meas.: slight decrease in the channel mobility for MBE/MOCVD-sample. The mean\ncarrier concentrations are similar --> 2DEG properties of the samples are ~ompasghle, ;
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