Figure 3.

Normalized EL spectrum of devices 6 and 7. (a) Normalized EL spectrum of device 6, ITO/PTA/NPD/Zn(TSA-BTZ)2/Al:Ca, (1) and PL spectrum of Zn(TSA-BTZ)2 powder (2). (b) Normalized EL spectra of device 7, ITO/PTA/Zn(TSA-BTZ)2/Al:Ca, for bias voltages 3.5 (blue curve), 4.0, 4.5, 5.0, 5.5 (black curves), and 6.0 V (red curve).

Kaplunov et al. Nanoscale Research Letters 2012 7:206   doi:10.1186/1556-276X-7-206
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