Skip to main content Accessibility help
×
Home
Hostname: page-component-684899dbb8-v9xhf Total loading time: 0.404 Render date: 2022-05-18T07:52:52.635Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "useRatesEcommerce": false, "useNewApi": true }

Effect of Nitric Acid Concentration on Doping of Thin Film Single-walled Carbon Nanotubes for Electrode Application in Transparent, Flexible Dye Sensitized Solar Cells

Published online by Cambridge University Press:  15 January 2013

Liling Zhang
Affiliation:
Energy Research Institute @ NTU (ERI@N), Research TechnoPlaza, Level 5, 50 Nanyang Drive, Nanyang Technological University, Singapore 637553. School of Materials Science and Engineering, Block N4.1, Nanyang Avenue, Nanyang Technological University, Singapore 639798.
Manohar Rao
Affiliation:
Energy Research Institute @ NTU (ERI@N), Research TechnoPlaza, Level 5, 50 Nanyang Drive, Nanyang Technological University, Singapore 637553.
Jinesh Kochupurackal
Affiliation:
Energy Research Institute @ NTU (ERI@N), Research TechnoPlaza, Level 5, 50 Nanyang Drive, Nanyang Technological University, Singapore 637553.
Nripan Mathews
Affiliation:
School of Materials Science and Engineering, Block N4.1, Nanyang Avenue, Nanyang Technological University, Singapore 639798.
Yeng Ming Lam
Affiliation:
School of Materials Science and Engineering, Block N4.1, Nanyang Avenue, Nanyang Technological University, Singapore 639798.
Subodh G. Mhaisalkar
Affiliation:
Energy Research Institute @ NTU (ERI@N), Research TechnoPlaza, Level 5, 50 Nanyang Drive, Nanyang Technological University, Singapore 637553.
Get access

Abstract

A simple method is proposed for the chemical modification of carbon nanotubes (CNT) thin film counter electrodes (CE) for the replacement of fluorine-doped tin oxide (FTO) and platinum catalyst (Pt) while retaining light transparency. In order to decrease the sheet resistance, CNT thin films underwent various concentrations (≤10 M) and durations of HNO3 treatment prior to cell fabrication, and the effect on thin film properties was analyzed. P-doping was observed, and the maximum change in work function was found to be +0.35 eV with 4 M HNO3. Optimum sheet resistance reduction (50%) and work function increment were achieved after 1 h treatment with 4 M HNO3. Changes in optical transmittances for all samples were negligible (± 5%). Pristine and HNO3 treated films on plastic substrates were tested as CE in flexible bifacial dye sensitized solar cells (DSSC). Most significant improvements in conversion efficiencies were obtained when CNT on plastic substrates were pretreated with 8 M HNO3 (from 1.18% to 1.40% under roomlight, from 0.19% to 0.26% under 1 Sun).

Type
Articles
Copyright
Copyright © Materials Research Society 2013

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

O’Regan, B. and Grätzel, M., Nature 353, 737 (1991).CrossRef
Suzuki, K., Yamaguchi, M., Kumagai, M. and Yanagida, S., Chem. Lett. 32, 28 (2003).CrossRef
King, P. J., Higgins, T. M., De, S., Nicoloso, N. and Coleman, J. N., ACS Nano 6, 1732 (2012).CrossRef
Aitola, K., Kaskela, A., Halme, J., Ruiz, V., Nasibulin, A. G., Kauppinen, E. I. and Lund, P. D., J. Electrochem. Soc. 157, B1831 (2010).CrossRef
Kim, K. K., Bae, J. J., Park, H. K., Kim, S. M., Geng, H.-Z., Park, K. A., Shin, H.-J., Yoon, S.-M., Benayad, A., Choi, J.-Y. and Lee, Y. H., J. Am. Chem. Soc. 130, 12757 (2008).CrossRef
Ghosh, K., Kumar, M., Wang, H., Maruyama, T. and Ando, Y., J. Phys. Chem. C 114, 5107 (2010).CrossRef
Monthioux, M., Flahaut, E. and Cleuziou, J.-P., J. Mater. Res. 21, 2774 (2006).CrossRef
Del Canto, E., Flavin, K., Movia, D., Navio, C., Bittencourt, C. and Giordani, S., Chem. Mater. 23, 67 (2011).CrossRef
Park, Y. T., Ham, A. Y. and Grunlan, J. C., J. Mater. Chem. 21, 363 (2011).CrossRef
Costa, S., Scheibe, B., Rummeli, M. and Borowiak-Palen, E., Phys. Stat. Sol. (B) 246, 2717 (2009).CrossRef
Graupner, R., J. Raman Spectrosc. 38, 673 (2007).CrossRef
Suzuki, S. and Hibino, H., Carbon 49, 2264 (2011).CrossRef
Lu, H.-L., Shen, T. F.-R., Huang, S.-T., Tung, Y.-L. and Yang, T. C.-K., Sol. Energ. Mat. Sol. Cells 95 (7), 1624 (2011).CrossRef

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.

Effect of Nitric Acid Concentration on Doping of Thin Film Single-walled Carbon Nanotubes for Electrode Application in Transparent, Flexible Dye Sensitized Solar Cells
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.

Effect of Nitric Acid Concentration on Doping of Thin Film Single-walled Carbon Nanotubes for Electrode Application in Transparent, Flexible Dye Sensitized Solar Cells
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.

Effect of Nitric Acid Concentration on Doping of Thin Film Single-walled Carbon Nanotubes for Electrode Application in Transparent, Flexible Dye Sensitized Solar Cells
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? *