Skip to main content Accessibility help
×
Home
Hostname: page-component-684899dbb8-p6h7k Total loading time: 0.457 Render date: 2022-05-18T17:41:32.641Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "useRatesEcommerce": false, "useNewApi": true }

Experimental and Theoretical Investigation of Photosensitive ITO/PEDOT:PSS/MEH-PPV/Al Detector

Published online by Cambridge University Press:  31 January 2011

Leon Rohan Pinto
Affiliation:
leoshil@gmail.com, Louisiana Tech University, Institute for Micromanufacturing, Ruston, Louisiana, United States
Jovana Petrovic
Affiliation:
jovana@etf.rs, University of Belgrade, Faculty of Electrical Engineering, Belgrade, Serbia
Petar Matavulj
Affiliation:
matavulj@etf.rs, University of Belgrade, Faculty of Electrical Engineering, Belgrade, Serbia
David Keith Chambers
Affiliation:
dchamberss@gmail.com, Louisiana Tech University, Institute for Micromanufacturing, Ruston, Louisiana, United States
Difei Qi
Affiliation:
qidifei@gmail.com, Louisiana Tech University, Institute for Micromanufacturing, Ruston, Louisiana, United States
Sandra Zivanovic Selmic
Affiliation:
sselmic@latech.edu, Louisiana Tech University, Institute for Micromanufacturing, Ruston, Louisiana, United States
Get access

Abstract

One of widely investigated materials for photodiode, light-emitting device, and solar cell applications is a soluble conjugated polymer poly(2-methoxy-5- (2,9-ethyl-hexyloxy)-1,4-phenylene vinylene) or MEH-PPV. In this paper we present experimental results on MEH-PPV polymer and ITO/PEDOT:PSS/MEH-PPV/Al photodetector, where ITO and PEDOT:PSS stand for indium tin oxide and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), respectively. Thin polymer films were fabricated by spin-coating technique. The characterization of the material and devices are done in air at room temperature. The experimental results include optical absorption of MEH-PPV and determination of the optical absorption coefficient, photocurrent dependence on optical power, light wavelength, bias voltage, and polymer thin film thickness. Theoretical modeling is based on drift-diffusion and continuity equations for hole polarons, as well as assumption that the charge carrier recombination process is bimolecular. The bimolecular recombination mechanism implies that the photocurrent depends on the square root of the optical power, which is confirmed with our experimental results.

Type
Research Article
Copyright
Copyright © Materials Research Society 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Harrison, M.G., and Gruner, J., “Analysis of the photocurrent spectra of MEH-PPV polymer photodiodes”, Physical Review B, v.55, n.12, pp.78317849, 1997.10.1103/PhysRevB.55.7831CrossRefGoogle Scholar
2 Gregg, B.A., and Hanna, M.C, “Comparing organic to inorganic photovoltaic cells: Theory, experiment, and simulation”, Journal of Applied Physics, vol. 93, no.6, pp. 36053614, 2003.10.1063/1.1544413CrossRefGoogle Scholar
3 Lee, M.S, Kang, H.S, Kang, H.S, Joo, J, Epstein, A.J, and Lee, J.Y, ”Flexible all-polymer field effect transistors with optical transparency using electrically conducting polymers”, Thin Solid Films, vol. 477, no.1-2, pp. 169173, 2005.10.1016/j.tsf.2004.08.128CrossRefGoogle Scholar
4 Halls, J. J. M. and Friend, R. H., The photovoltaic effect in a PPV/perylene heterojunction, Synthetic Metals, vol.85, no.1-3, pp.13071308, 1996.10.1016/S0379-6779(97)80252-4CrossRefGoogle Scholar
5 Moons, E., “Conjugated polymer blends: linking film morphology to performance of light emitting diodes and photodiodes”, Journal of Physics: Condensed Matte, vo.14, pp.1223512260, 2002.Google Scholar
6 Lewis, A.J., Ruseckas, A., Gaudin, O.P.M., Webster, G.R., Burn, P.L, Samuel, I.D.W., “Singlet exciton diffusion in MEH:PPV films studied by exciton-exciton annihilation,” Organic Electronics, vol.7, pp. 452456, 2006.10.1016/j.orgel.2006.05.009CrossRefGoogle Scholar
7 Petroviæ, J., Matavulj, P., Qi, D., Chambers, D. K., and Ŝelmiæ, S., “A Model for the Current-Voltage Characteristics of ITO/PEDOT:PSS/MEHPPV/AL Photodetectors,” IEEE Photonics Technology Letters, vol.20, no.5, pp.348350, March 2008.10.1109/LPT.2007.915586CrossRefGoogle Scholar
8 Kraabel, B., Klimov, V.I., Kohlman, R., Xu, S., Wang, H L., McBranch, D.W., “Unified picture of the photoexcitations in phenylene-based conjugated polymers: Universal spectral and dynamical features in subpicosecond transient absorption,” Phys. Rev. B, vol. 61, pp. 85018515, 2000.10.1103/PhysRevB.61.8501CrossRefGoogle Scholar
9 Arkhipov, V. I., Bassler, H., Deussen, M., Gobel, E.O., “Field-induced exciton breaking in conjugated polymers,” Phys. Rev. B, vol. 52, pp. 49324940, 1995.10.1103/PhysRevB.52.4932CrossRefGoogle ScholarPubMed
10 DeVore, H. B., “Spectral Distribution of photoconductivity,” Physica Review, vol. 102, no. 1, pp. 8691, April 1956.10.1103/PhysRev.102.86CrossRefGoogle Scholar

Save article to Kindle

To save this article to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Experimental and Theoretical Investigation of Photosensitive ITO/PEDOT:PSS/MEH-PPV/Al Detector
Available formats
×

Save article to Dropbox

To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about saving content to Dropbox.

Experimental and Theoretical Investigation of Photosensitive ITO/PEDOT:PSS/MEH-PPV/Al Detector
Available formats
×

Save article to Google Drive

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

Experimental and Theoretical Investigation of Photosensitive ITO/PEDOT:PSS/MEH-PPV/Al Detector
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *