Facile photochemical synthesis of graphene-Pt nanoparticle composite for counter electrode in dye sensitized solar cell
A low temperature route to synthesize graphene oxide–Pt nanoparticle hybrid composite by light assisted spontaneous coreduction of graphene oxide and chloroplatinic acid without reducing agent is demonstrated. Analysis indicates the importance of light as energy provider and ethanol as hole scavenge...
Saved in:
Main Authors: | , , , , , |
---|---|
Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2013
|
Online Access: | https://hdl.handle.net/10356/96381 http://hdl.handle.net/10220/10278 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-96381 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-963812020-06-01T10:13:34Z Facile photochemical synthesis of graphene-Pt nanoparticle composite for counter electrode in dye sensitized solar cell Tjoa, Verawati Chua, Julianto Pramana, Stevin Snellius Wei, Jun Mhaisalkar, Subodh Gautam Mathews, Nripan School of Materials Science & Engineering A low temperature route to synthesize graphene oxide–Pt nanoparticle hybrid composite by light assisted spontaneous coreduction of graphene oxide and chloroplatinic acid without reducing agent is demonstrated. Analysis indicates the importance of light as energy provider and ethanol as hole scavenger in the formation of small Pt nanoparticles (3 nm) on graphene oxide as well as graphene oxide reduction. Spray coating was used to deposit the hybrid material as a counter electrode in dye sensitized solar cells (DSCs). An efficiency of 6.77% for the hybrid graphene counter electrode has been obtained, higher than the control device made by low temperature sputtered Pt as counter electrode. Compatibility of the hybrid material with flexible plastic substrates was demonstrated yielding DSCs of an efficiency of 4.05%. 2013-06-12T07:40:32Z 2019-12-06T19:29:43Z 2013-06-12T07:40:32Z 2019-12-06T19:29:43Z 2012 2012 Journal Article Tjoa, V., Chua, J., Pramana, S. S., Wei, J., Mhaisalkar, S. G., & Mathews, N. (2012). Facile Photochemical Synthesis of Graphene-Pt Nanoparticle Composite for Counter Electrode in Dye Sensitized Solar Cell. ACS Applied Materials & Interfaces, 4(7), 3447-3452. 1944-8244 https://hdl.handle.net/10356/96381 http://hdl.handle.net/10220/10278 10.1021/am300437g en ACS applied materials & interfaces © 2012 American Chemical Society. |
institution |
Nanyang Technological University |
building |
NTU Library |
country |
Singapore |
collection |
DR-NTU |
language |
English |
description |
A low temperature route to synthesize graphene oxide–Pt nanoparticle hybrid composite by light assisted spontaneous coreduction of graphene oxide and chloroplatinic acid without reducing agent is demonstrated. Analysis indicates the importance of light as energy provider and ethanol as hole scavenger in the formation of small Pt nanoparticles (3 nm) on graphene oxide as well as graphene oxide reduction. Spray coating was used to deposit the hybrid material as a counter electrode in dye sensitized solar cells (DSCs). An efficiency of 6.77% for the hybrid graphene counter electrode has been obtained, higher than the control device made by low temperature sputtered Pt as counter electrode. Compatibility of the hybrid material with flexible plastic substrates was demonstrated yielding DSCs of an efficiency of 4.05%. |
author2 |
School of Materials Science & Engineering |
author_facet |
School of Materials Science & Engineering Tjoa, Verawati Chua, Julianto Pramana, Stevin Snellius Wei, Jun Mhaisalkar, Subodh Gautam Mathews, Nripan |
format |
Article |
author |
Tjoa, Verawati Chua, Julianto Pramana, Stevin Snellius Wei, Jun Mhaisalkar, Subodh Gautam Mathews, Nripan |
spellingShingle |
Tjoa, Verawati Chua, Julianto Pramana, Stevin Snellius Wei, Jun Mhaisalkar, Subodh Gautam Mathews, Nripan Facile photochemical synthesis of graphene-Pt nanoparticle composite for counter electrode in dye sensitized solar cell |
author_sort |
Tjoa, Verawati |
title |
Facile photochemical synthesis of graphene-Pt nanoparticle composite for counter electrode in dye sensitized solar cell |
title_short |
Facile photochemical synthesis of graphene-Pt nanoparticle composite for counter electrode in dye sensitized solar cell |
title_full |
Facile photochemical synthesis of graphene-Pt nanoparticle composite for counter electrode in dye sensitized solar cell |
title_fullStr |
Facile photochemical synthesis of graphene-Pt nanoparticle composite for counter electrode in dye sensitized solar cell |
title_full_unstemmed |
Facile photochemical synthesis of graphene-Pt nanoparticle composite for counter electrode in dye sensitized solar cell |
title_sort |
facile photochemical synthesis of graphene-pt nanoparticle composite for counter electrode in dye sensitized solar cell |
publishDate |
2013 |
url |
https://hdl.handle.net/10356/96381 http://hdl.handle.net/10220/10278 |
_version_ |
1681056376307056640 |