Ya. Chen et al., OPTOELECTRONIC CHARACTERISTICS OF A-SIC-H-BASED PIN THIN-FILM LEDS HAVING A THIN MO BUFFER LAYER IN CONTACT WITH P-TYPE A-SI-H, Electronics Letters, 34(14), 1998, pp. 1433-1434
To improve the electroluminescence (EL) properties of the nSiC:H-based
pin thin film light-emitting diodes (TFLEDs) with the promotion of ho
le injection efficiency, a thin Mo metal film was used as a buffer lay
er to prevent reactions between the ITO (indium-tin-oxide) electrode a
nd the p(+)-a-Si:H layer. With the formation of semi-transparent Mo si
licide after annealing, a lower EL threshold voltage and a significant
ly higher brightness for a finished TFLED were achieved. The brightnes
s of the obtained device was 1300cd/m(2) at an injection current densi
ty of 600mA/cm(2), and its EL threshold voltage was 14V.