CHEN Yan, CHEN Xing-ming, HU Sheng-kun etc. Top-emitting organic light-emitting devices based on silicon substrate with high efficiency and luminance[J]. , 2015,30(6): 960-964
CHEN Yan, CHEN Xing-ming, HU Sheng-kun etc. Top-emitting organic light-emitting devices based on silicon substrate with high efficiency and luminance[J]. , 2015,30(6): 960-964 DOI: 10.3788/YJYXS20153006.0960.
Top-emitting organic light-emitting devices based on silicon substrate with high efficiency and luminance
Adopting semi-transparent thin silver as cathode and UV-ozone surfaced-modified thick silver as anode
top-emitting organic light-emitting device (TEOLED) on silicon substrate with high luminance and efficiency was fabricated. The maximum current efficiency was 4.9 cd/A when the voltage was 9 V and the luminance reaches 14040 cd/m
2
at 17 V. The device structure is further optimized by increasing the doping concentration and the anode thickness.By optimizing the device structure
a TEOLED with high current efficiency (11 cd/A at 10 V with luminance of 21748 cd/m
2
) had been reported. Due to the microcavity effect
the efficiency and luminance of TEOLED are relatively high
but the blue-shift of the resonant wavelength (RW) with increasing view angles is obvious. By employing the suitable emitting material
the blue-shift of the RW is nearly negligible in our device when the viewing angles moved from 0to 75.
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