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(a) The band diagram of the dual wavelength LED and (b) EL spectra.
(a) The structure of the dual wavelength LED. (b) The completed dual wavelength LED device. Infrared images for (c) the top LED and (d) bottom LED .
Light-current-voltage (LIV) characteristic for the dual wavelength LED. Closed and half closed symbol for the optical power vs current under qCW (3 KHz, 50%) and pulsed (3 KHz, 1%) mode operation, respectively. Open symbol for the voltage vs current.
(a) Scheme of dual wavelength LED arrays and (b) EL spectra of 2 and LED pixels with infrared images.
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