Please use this identifier to cite or link to this item:
https://doi.org/10.1002/adfm.201101376
Title: | Graphene intermediate layer in tandem organic photovoltaic cells | Authors: | Tong, S.W. Wang, Y. Zheng, Y. Ng, M.-F. Loh, K.P. |
Keywords: | Graphene intermediate layer molybdenum oxide tandem photovoltaic cells |
Issue Date: | 6-Dec-2011 | Citation: | Tong, S.W., Wang, Y., Zheng, Y., Ng, M.-F., Loh, K.P. (2011-12-06). Graphene intermediate layer in tandem organic photovoltaic cells. Advanced Functional Materials 21 (23) : 4430-4435. ScholarBank@NUS Repository. https://doi.org/10.1002/adfm.201101376 | Abstract: | One strategy to harvest wide spectral solar energy is to stack different bandgap materials together in a tandem solar cell. Here, it is demonstrated that CVD grown graphene film can be employed as intermediate layer (IML) in tandem solar cells. Using MoO3-modified graphene IML, a high open circuit voltage (Voc) of 1 V and a high short-circuit current density (J sc) of 11.6 mA cm-2 could be obtained in series and parallel connection, respectively, in contrast to a Voc of 0.58 V and Jsc of 7.6 mA cm-2 in single PV cell. The value of V oc (Jsc) in the tandem cell is very close to the sum of Voc (Jsc) attained from two single subcells in series (parallel), which confirms good ohmic contact at the photoactive layer/MoO 3-modified graphene interface. Work function engineering of the graphene IML with metal oxide is essential to ensure good charge collection from both subcells. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | Source Title: | Advanced Functional Materials | URI: | http://scholarbank.nus.edu.sg/handle/10635/89028 | ISSN: | 1616301X | DOI: | 10.1002/adfm.201101376 |
Appears in Collections: | Staff Publications |
Show full item record
Files in This Item:
There are no files associated with this item.
SCOPUSTM
Citations
50
checked on Jan 18, 2021
WEB OF SCIENCETM
Citations
46
checked on Jan 18, 2021
Page view(s)
86
checked on Jan 18, 2021
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.