All-Solution-Processed Quantum Dot Light-Emitting Diode Using Phosphomolybdic Acid as Hole Injection Layer
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. QD-EL Device Fabrication
2.3. Hole-Only Device Fabrication
2.4. Thin Film and Device Characterization
3. Results and Discussion
3.1. Thin-Film Characteristics of PMA
3.2. Device Performance Using PMA as HIL
3.2.1. Electrical Characteristics of Hole-Only Device Using PMA as HIL
3.2.2. Characteristics of QD-EL Device Using PMA as HIL
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Solvent | Boiling Point (°C) | Viscosity (cP) | Surface Tension (dynes/cm) |
---|---|---|---|
Acetonitrile | 82.1 | 0.33 (25 °C) | 29.29 |
n-Butanol | 117.7 | 2.54 (25 °C) | 24.57 |
Cyclohexanone | 155.6 | 2.02 (25 °C) | 34 |
DMSO | 189 | 2.0 (25 °C) | 43.53 |
Solvent | Von at 1 nit (V) | Lmax (cd/m2) | EQEmax (%) | PEmax (lm/W) |
---|---|---|---|---|
Acetonitrile | 2.5 | 22,050 | 4.59 | 3.35 |
n-Butanol | 2.6 | 21,700 | 4.19 | 3.38 |
Cyclohexanone | 2.7 | 22,540 | 5.92 | 4.69 |
DMSO | 3.6 | 17,470 | 3.95 | 1.77 |
HIL | Von at 1 nit (V) | L (cd/m2) at 8 V | EQEmax (%) | PEmax (lm/W) |
---|---|---|---|---|
PEDOT:PSS | 2.9 | 20,390 | 3.26 | 1.41 |
PMA (cyclohexanone) | 2.7 | 22,000 | 3.80 | 1.74 |
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Hwang, J.H.; Seo, E.; Park, S.; Lee, K.; Kim, D.H.; Lee, S.H.; Kwon, Y.W.; Roh, J.; Lim, J.; Lee, D. All-Solution-Processed Quantum Dot Light-Emitting Diode Using Phosphomolybdic Acid as Hole Injection Layer. Materials 2023, 16, 1371. https://doi.org/10.3390/ma16041371
Hwang JH, Seo E, Park S, Lee K, Kim DH, Lee SH, Kwon YW, Roh J, Lim J, Lee D. All-Solution-Processed Quantum Dot Light-Emitting Diode Using Phosphomolybdic Acid as Hole Injection Layer. Materials. 2023; 16(4):1371. https://doi.org/10.3390/ma16041371
Chicago/Turabian StyleHwang, Jeong Ha, Eunyong Seo, Sangwook Park, Kyungjae Lee, Dong Hyun Kim, Seok Hyoung Lee, Yong Woo Kwon, Jeongkyun Roh, Jaehoon Lim, and Donggu Lee. 2023. "All-Solution-Processed Quantum Dot Light-Emitting Diode Using Phosphomolybdic Acid as Hole Injection Layer" Materials 16, no. 4: 1371. https://doi.org/10.3390/ma16041371