Clustering effects on discontinuous gold film NanoCells.
Reproducible negative differential resistance (NDR)-like switching behavior is observed in NanoCells. This behavior is attributed to the formation of filaments and clusters between the discontinuous gold films. Control experiments are performed by self-assembly of insulating molecules between the gold islands and conducting molecules on these islands. Additional control experiments are performed by removing the filaments and clusters between islands using a piranha bath. The results are consistent with theoretical predictions and extend the domain of molecular electronics based in organic molecules to include nanosized clusters as active units. This facilitates a scenario where synthetically accessible organic molecules, with defined characteristics, can be adjusted by metallic nanoclusters as an in situ fine-tuning element, able to compensate for the lack of addressing in the nanosize regime.
Seminario
Jorge M
JM
Chemical Engineering Department, Texas A&M University, College Station, TX 77843, USA.
Ma
Yuefei
Y
Agapito
Luis A
LA
Yan
Liuming
L
Araujo
Roy A
RA
Bingi
Sridhar
S
Vadlamani
Nagendra S
NS
Chagarlamudi
Krishna
K
Sudarshan
Tangali S
TS
Myrick
Michael L
ML
Colavita
Paula E
PE
Franzon
Paul D
PD
Nackashi
David P
DP
Cheng
Long
L
Yao
Yuxing
Y
Tour
James M
JM
D017097:Electric Impedance; D004581:Electronics; D004583:Electrons; D006046:Gold / Q000737:chemistry*; D008422:Materials Testing; D008958:Models, Molecular; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*
D006046:Gold