PMID- 26290980
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150922
LR  - 20150821
IS  - 1948-7185 (Print)
IS  - 1948-7185 (Linking)
VI  - 3
IP  - 23
DP  - 2012 Dec 6
TI  - Probing Electronic Doping of Single-Walled Carbon Nanotubes by Gaseous Ammonia 
      with Dielectric Force Microscopy.
PG  - 3509-12
LID - 10.1021/jz301622a [doi]
AB  - The electronic properties of single-walled carbon nanotubes (SWNTs) are sensitive 
      to the gas molecules adsorbed on nanotube sidewalls. It is imperative to 
      investigate the interaction between SWNTs and gas molecules in order to 
      understand the mechanism of SWNT-based gas-sensing devices or the stability of 
      individual SWNT-based field effect transistors (FETs). To avoid the Schottky 
      barrier at the metal/SWNT contact, which dominates the performance of SWNT-based 
      FETs, we utilize a contactless technique, dielectric force microscopy (DFM), to 
      study the intrinsic interaction between SWNTs and gaseous ammonia molecules. 
      Results show that gaseous ammonia affects the conductivity of semiconducting 
      SWNTs but not metallic SWNTs. Semiconducting SWNTs, which are p-type doped in 
      air, show suppressed hole concentration in ammonia gas and are even inverted to 
      n-type doping in some cases.
FAU - Zhang, Jie
AU  - Zhang J
AD  - daggerHefei National Laboratory for Physical Sciences at the Microscale, University of 
      Science and Technology of China, Hefei Anhui 230026, China.
AD  - double daggeri-LAB, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of 
      Sciences, Suzhou, Jiangsu 215123, China.
FAU - Lu, Wei
AU  - Lu W
AD  - double daggeri-LAB, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of 
      Sciences, Suzhou, Jiangsu 215123, China.
FAU - Li, Yize Stephanie
AU  - Li YS
AD  - double daggeri-LAB, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of 
      Sciences, Suzhou, Jiangsu 215123, China.
FAU - Lu, Di
AU  - Lu D
AD  - double daggeri-LAB, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of 
      Sciences, Suzhou, Jiangsu 215123, China.
FAU - Zhang, Ting
AU  - Zhang T
AD  - double daggeri-LAB, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of 
      Sciences, Suzhou, Jiangsu 215123, China.
FAU - Wang, Xiaoping
AU  - Wang X
AD  - daggerHefei National Laboratory for Physical Sciences at the Microscale, University of 
      Science and Technology of China, Hefei Anhui 230026, China.
FAU - Chen, Liwei
AU  - Chen L
AD  - double daggeri-LAB, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of 
      Sciences, Suzhou, Jiangsu 215123, China.
LA  - eng
PT  - Journal Article
DEP - 20121115
PL  - United States
TA  - J Phys Chem Lett
JT  - The journal of physical chemistry letters
JID - 101526034
OTO - NOTNLM
OT  - chemical sensing
OT  - dielectric force microscopy (DFM)
OT  - electrostatic force microscopy (EFM)
OT  - single-walled carbon nanotube (SWNT)
EDAT- 2012/12/06 00:00
MHDA- 2012/12/06 00:01
CRDT- 2015/08/21 06:00
PHST- 2015/08/21 06:00 [entrez]
PHST- 2012/12/06 00:00 [pubmed]
PHST- 2012/12/06 00:01 [medline]
AID - 10.1021/jz301622a [doi]
PST - ppublish
SO  - J Phys Chem Lett. 2012 Dec 6;3(23):3509-12. doi: 10.1021/jz301622a. Epub 2012 Nov 
      15.