Fig. 1. Schematic diagram of light-emitting triode (LET). (a) Equivalent circuit of LET; (b) device structure of LET; (c) simulation model of LET

Fig. 2. Current-voltage relationship of LET devices under different anode voltages of (a) 4 V, (b) 5 V, (c) 6 V, (d) 7 V, and (e) 8 V, respectively; (f) V_N changes with anode voltage

Fig. 3. Electrical characterization of LET devices. (a) Current-voltage relationship; (b) Gummel diagrams of I_B and I_P; (c) current gain

Fig. 4. Performance comparison of LED and LET devices. (a) Current and voltage characteristics; (b) optical output power; (c) optical output power of LET

Fig. 5. Performance comparison of LET devices with different thicknesses. (a) Current-voltage curve; (b) I_P as function of I_B; (c) LOP as function of V_B; (d) IQE as function of I_B