Skip to main content Accessibility help
×
Home

Effects of the pyromellitic dianhydride cathode interfacial layer on characteristics of organic solar cells based on poly(3-hexylthiophene-2,5-diyl) and [6,6]-phenyl C61 butyric acid methyl ester

  • Eunkyoung Nam, Mi Ran Moon (a1), Jungwoo Kim (a2), Donggeun Jung (a1), Hyoungsub Kim (a2), Heeyeop Chae (a3) and Junsin Yi (a4)...

Abstract

This study examined the performance of poly(3-hexylthiophene-2,5-diyl)(P3HT)- and [6,6]-phenyl C61 butyric acid methyl ester (PCBM)-based organic solar cells (OSCs) with a pyromellitic dianhydride (PMDA) cathode interfacial layer between the active layer and cathode. The effect of inserting the cathode interfacial layer with different thicknesses was investigated. For the OSC samples with a 0.5 nm thick PMDA layer, the power conversion efficiency (PCE) was approximately 2.77% under 100 mW/cm2 (AM1.5) simulated illumination. It was suggested that the PMDA cathode interfacial layer acts as an exciton blocking layer, leading to an enhancement of the OSC performance.

Copyright

Corresponding author

a)Address all correspondence to this author. e-mail: djung@skku.ac.kr

References

Hide All
1.Yu, G., Gao, J., Hummelen, J.C., Wudl, F., Heeger, A.J.Polymer photovoltaic cells: Enhanced efficiencies via a network of internal donor-acceptor heterojunctions. Science 270, 1789 (1995)
2.Moliton, A., Nunzi, J-M.How to model the behavior of organic photovoltaic cells. Polym. Int. 55, 583 (2006)
3.Chen, F.C., Wu, J.L., Yang, S.S., Hsieh, K.H., Chen, W.C.Cesium carbonate as a functional interlayer for polymer photovoltaic devices. J. Appl. Phys. 103, 103721 (2008)
4.Peumans, P., Bulović, V., Forrest, S.R.Efficient photon harvesting at high optical intensities in ultrathin organic double-heterostructure photovoltaic diodes. Appl. Phys. Lett. 76, 2650 (2008)
5.Peumans, P., Forrest, S.R.Very-high-efficiency double-heterostructure copper phthalocyanine/C60 photovoltaic cells. Appl. Phys. Lett. 79, 126 (2001)
6.Ichikawa, M., Amagai, J., Horiba, Y., Koyama, T., Taniguchi, Y.Dynamic turn-on behavior of organic light-emitting devices with different work function cathode metals under fast pulse excitation. J. Appl. Phys. 94, 7796 (2003)
7.Chan, M.Y., Lee, C.S., Lai, S.L., Fung, M.K., Wong, F.L., Sun, H.Y., Lau, K.M., Lee, S.T.Efficient organic photovoltaic devices using a combination of exciton blocking layer and anodic buffer layer. J. Appl. Phys. 100, 094506 (2006)
8.Brabec, C.J., Shaheen, S.E., Winder, C., Sariciftci, N.S., Denk, P.Effect of LiF/metal electrodes on the performance of plastic solar cells. Appl. Phys. Lett. 80, 1288 (2002)
9.Ahlswede, E., Hanisch, J., Powalla, M.Comparative study of the influence of LiF, NaF, and KF on the performance of polymer bulk heterojunction solar cells. Appl. Phys. Lett. 90, 163504 (2007)
10.Nam, E., Park, H., Park, K., Moon, M.R., Sohn, S., Jung, D., Yi, J., Chae, H., Kim, H.Electroluminescence and impedance analyses of organic light emitting diodes using anhydride materials as cathode interfacial layers. Thin Solid Films 517, 4131 (2009)
11.Andrzejak, M., Mazur, G., Petelenz, P.Quantum chemical results as input for solid state calculations: Charge transfer states in molecular crystals. J. Mol. Struct. 527, 91 (2000)
12.Parthasarathy, G., Burrows, P.E., Khalfin, V., Kozolv, V.G., Forrest, S.R.A metal-free cathode for organic semiconductor devices. Appl. Phys. Lett. 72, 2138 (1998)
13.Peumans, P., Yakimov, A., Forrest, S.R.Small molecular weight organic thin-film photodetectors and solar cells. J. Appl. Phys. 93, 3693 (2003)
14.Nalwa, H.S.Handbook of Organic Electronics and Photonics (American Scientific Publishers, Los Angeles, CA 2006)180192
15.Hau, S.K., Yip, H-L., Acton, O., Baek, N.S., Ma, H., Jen, A.K-Y.Interfacial modification to improve inverted polymer solar cells. J. Mater. Chem. 18, 5113 (2008)
16.Lee, S.K., Cho, N.S., Kwak, J.H., Lim, K.S., Shim, H-K., Hwang, D-H., Brabec, C.J.New low band-gap alternating polyfluorene derivatives for photovoltaic cells. Thin Solid Films 511, 157 (2006)

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed