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Electro Optical Characterisation of Short Wavelength Semiconductor ...

Electro Optical Characterisation of Short Wavelength Semiconductor ...

Data Analysis Current

Data Analysis Current [mA] 400 300 200 100 measured curve fitted curve tangent s1173/600nm/6um i/v 0 0 5 10 Voltage [V] 15 20 Cts/s 20000 15000 10000 5000 s1173/600nm/6um spectrum 0 510 515 520 525 Wavelength [nm] 530 535 540 Figure 4.7: I/V behaviour as well as spectrum of a device belonging to the 600nm series. planar 600nm 1200nm 1800nm 10µm LED 1314.71 A/cm 2 671.27 A/cm 2 925.7 A/cm 2 (1387.72 µm) (1027.19 µm) (1062.29 µm) Table 4.4: Threshold current density. The values in the parentheses are the lengths of the devices. 36

Output Light Power [W] 0,0002 0,00015 0,0001 5e-05 s1172/600nm width: 10um, length: 1387.72um measured curve fitted curve tangent 0 500 1000 1500 2000 2500 3000 Current Density[A/cm 2 0 ] Output Light Power [W] 8e-06 6e-06 4e-06 2e-06 Output Light Power [W] 5e-05 4e-05 3e-05 2e-05 1e-05 s1172/1800nm width: 10um, length: 1062.29um measured curve fitted curve tangent s1172/1200nm width: 10um, length: 1027.19um measured curve fitted curve tangent 0 500 1000 Current Density[A/cm 1500 2000 2 0 ] Figure 4.8: Output light vs. current density ZnSe Devices 0 500 1000 Current Density[A/cm 1500 2000 2 0 ] 37

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