TY - JOUR
T1 - Flexible molecular-scale electronic devices
AU - Park, Sungjun
AU - Wang, Gunuk
AU - Cho, Byungjin
AU - Kim, Yonghun
AU - Song, Sunghoon
AU - Ji, Yongsung
AU - Yoon, Myung Han
AU - Lee, Takhee
N1 - Funding Information:
This work was supported by the National Research Laboratory programme and a Korean National Core Research Centre grant from the Korean Ministry of Education, Science and Technology, and the Research Settlement Fund for new faculty at Seoul National University. The authors thank J-S. Yeo, Y. Gon and S-Y. Lee for experimental assistance.
PY - 2012/7
Y1 - 2012/7
N2 - Flexible materials and devices could be exploited in light-emitting diodes, electronic circuits, memory devices, sensors, displays, solar cells and bioelectronic devices. Nanoscale elements such as thin films, nanowires, nanotubes and nanoparticles can also be incorporated into the active films of mechanically flexible devices. Large-area devices containing extremely thin films of molecular materials represent the ultimate scaling of flexible devices based on organic materials, but the influence of bending and twisting on the electrical and mechanical stability of such devices has never been examined. Here, we report the fabrication and characterization of two-terminal electronic devices based on self-assembled monolayers of alkyl or aromatic thiol molecules on flexible substrates. We find that the charge transport characteristics of the devices remain stable under severe bending conditions (radius ĝ‰Currency sign 1 mm) and a large number of repetitive bending cycles (ĝ‰¥1,000). The devices also remain reliable in various bending configurations, including twisted and helical structures.
AB - Flexible materials and devices could be exploited in light-emitting diodes, electronic circuits, memory devices, sensors, displays, solar cells and bioelectronic devices. Nanoscale elements such as thin films, nanowires, nanotubes and nanoparticles can also be incorporated into the active films of mechanically flexible devices. Large-area devices containing extremely thin films of molecular materials represent the ultimate scaling of flexible devices based on organic materials, but the influence of bending and twisting on the electrical and mechanical stability of such devices has never been examined. Here, we report the fabrication and characterization of two-terminal electronic devices based on self-assembled monolayers of alkyl or aromatic thiol molecules on flexible substrates. We find that the charge transport characteristics of the devices remain stable under severe bending conditions (radius ĝ‰Currency sign 1 mm) and a large number of repetitive bending cycles (ĝ‰¥1,000). The devices also remain reliable in various bending configurations, including twisted and helical structures.
UR - http://www.scopus.com/inward/record.url?scp=84863725626&partnerID=8YFLogxK
U2 - 10.1038/nnano.2012.81
DO - 10.1038/nnano.2012.81
M3 - Article
C2 - 22659606
AN - SCOPUS:84863725626
SN - 1748-3387
VL - 7
SP - 438
EP - 442
JO - Nature Nanotechnology
JF - Nature Nanotechnology
IS - 7
ER -