Synthesis, structure, and certain properties of single-layer and multilayer single-crystal systems based on CdS-CdSe films

Enhanced Field-Emission and Red Lasing of Ordered CdSe Nanowire Branched Arrays

“…The FE current–voltage characteristics were further analyzed using the F–N equation J = false( normalA normalβ 2 E 2 / normalφ false) .25em exp false( − B normalφ 3 / 2 / normalβ E false) or ln false( normalJ / normalE 2 false) = ln false( normalA normalβ 2 / normalφ false) − B normalφ 3 / 2 / normalβ E where A = 1.54 × 10 –6 A eV V –2 , B = 6.83 × 10 3 eV –3/2 V μm –1 , J is current density, E is the applied electric field, β is the field-enhancement factor, and φ is the work function of the emitting material, which is 5.22 eV for CdSe . The F–N plot of (ln( J / E 2 )) versus (1/ E ) shows a linear relationship, indicating that the FE behavior obeys the F–N theory, i.e.…”

“…where A = 1.54 Â 10 À6 A eV V À2 , B = 6.83 Â 10 3 eV À3/2 V μm À1 , J is current density, E is the applied electric field, β is the field-enhancement factor, and j is the work function of the emitting material, which is 5.22 eV for CdSe. 41 The FÀN plot of (ln(J/E 2 )) versus (1/E) shows a linear relationship, indicating that the FE behavior obeys the FÀN theory, i.e. the electrons tunnel through the potential barrier from the conduction band to vacuum.…”