1 / 3

EXPERIMENTAL DETAILS

EXPERIMENTAL DETAILS. veeco metal–organic chemical vapor deposition system Chip size 350*350µ MQW growth time are 1.5 nm (1 min), 2.0 nm (1.33 min), and 2.5 nm (1.67 min), respectively mounted onto TO-46 lead frames without epoxy encapsulation

preston-puckett
Download Presentation

EXPERIMENTAL DETAILS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EXPERIMENTAL DETAILS • veeco metal–organic chemical vapor deposition system • Chip size 350*350µ • MQW growth time are 1.5 nm (1 min), 2.0 nm (1.33 min), and 2.5 nm (1.67 min), respectively • mounted onto TO-46 lead frames without epoxy encapsulation • pulse duration 3 ms and duty cycle 5% by Keithley 2400 source meter. FIG. 1. Color online Schematic structure InGaN/GaNmultiple quantumwellLEDs with varied well thicknesses

  2. RESULTS AND DISCUSSION 2.9% 26.3% 43.8% Fig. 1. Normalized EQE measurements of the MQW LEDs with varied well thicknesses. A reduced efficiency droop behavior is demonstrated for the samples with thicker quantum wells. The inset shows absolute values of the external quantum efficiencies for the samples.

  3. Fig. 2. Schematic figure of total current density Jtotal = Jrad + Jnrad+Joverflow. • Utilizing a commercial software—simulator of light emitters based on nitride semiconductors(SiLENSe)—is performed. • R

More Related