Journal
SMALL
Volume 9, Issue 16, Pages 2817-2825Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201300538
Keywords
reduced graphene oxide; micropatterning; thin films; source-drain electrodes; flexible inverters
Categories
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [2010-0011214, 2009-0083540]
- Center for Advanced Soft Electronics under the Global Frontier Research Program of the MEST [2011-0031639]
- Ministry of Knowledge Economy (MKE) and Korea Institute for Advancement of Technology (KIAT) through the Workforce Development Program in Strategic Technology
- National Research Foundation of Korea [2010-0011214, 2011-0031639, 2013-PAL] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
A wafer-scale patterning method for solution-processed graphene electrodes, named the transfer-and-reverse stamping method, is universally applicable for fabricating source/drain electrodes of n- and p-type organic field-effect transistors with excellent performance. The patterning method begins with transferring a highly uniform reduced graphene oxide thin film, which is pre-prepared on a glass substrate, onto hydrophobic silanized (rigid/flexible) substrates. Patterns of the as-prepared reduced graphene oxide films are then formed by modulating the surface energy of the films and selectively delaminating the films using an oxygen-plasma-treated elastomeric stamp with patterns. Reduced graphene oxide patterns with various sizes and shapes can be readily formed onto an entire wafer. Also, they can serve as the source/drain electrodes for benchmark n- and p-type organic field-effect transistors with enhanced performance, compared to those using conventional metal electrodes. These results demonstrate the general utility of this technique. Furthermore, this simple, inexpensive, and scalable electrode-patterning-technique leads to assembling organic complementary circuits onto a flexible substrate successfully.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available