Figure 4 | Scientific Reports

Figure 4

From: Enhanced performance of flexible quantum dot light-emitting diodes using a low-temperature processed PTAA hole transport layer

Figure 4The alternative text for this image may have been generated using AI.

UPS spectra at the SEC, valence, and near the EF regions. (a) ITO, ITO/V2O5, ITO/V2O5/TFB, and ITO/V2O5/TFB/QDs. (c) ITO, ITO/V2O5, ITO/V2O5/PTAA (UVO 40), and ITO/V2O5/PTAA (UVO 40)/QDs. Energy level diagram of (b) ITO/V2O5/TFB/QDs and (d) ITO/V2O5/PTAA (UVO 40)/QDs. Performance of the QLEDs with UVO 40 and TFB HTLs. (e) J-V-L and (f) CE-V-EQE curves.

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