PMID- 20334354
OWN - NLM
STAT- MEDLINE
DCOM- 20100715
LR  - 20200930
IS  - 1530-6992 (Electronic)
IS  - 1530-6984 (Linking)
VI  - 10
IP  - 4
DP  - 2010 Apr 14
TI  - 20 micros photocurrent response from lithographically patterned nanocrystalline 
      cadmium selenide nanowires.
PG  - 1481-5
LID - 10.1021/nl100483v [doi]
AB  - Lithographically patterned nanowire electrodeposition (LPNE) provides a method 
      for patterning nanowires composed of nanocrystalline cadmium selenide (nc-CdSe) 
      over wafer-scale areas. We assess the properties of (nc-CdSe) nanowires for 
      detecting light as photoconductors. Structural characterization of these 
      nanowires by X-ray diffraction and transmission electron microscopy reveals they 
      are composed of stoichiometric, single phase, cubic CdSe with a mean grain 
      diameter of 10 nm. For nc-CdSe nanowires with lengths of many millimeters, the 
      width and height dimensions could be varied over the range from 60 to 350 nm (w) 
      and 20 to 80 nm (h). Optical absorption and photoluminescence spectra for nc-CdSe 
      nanowires were both dominated by band-edge transitions. The photoconductivity 
      properties of nc-CdSe nanowire arrays containing approximately 350 nanowires were 
      evaluated by electrically isolating 5 microm nanowire lengths using evaporated 
      gold electrodes. Photocurrents, i(photo), of 10-100 x (i(dark)) were observed 
      with a spectral response characterized by an onset at 1.75 eV. i(photo) response 
      and recovery times were virtually identical and in the range from 20 to 40 micros 
      for 60 x 200 nm nanowires.
FAU - Kung, Sheng-Chin
AU  - Kung SC
AD  - Department of Chemistry, University of California, Irvine, California 92697-2025, 
      USA.
FAU - van der Veer, Wytze E
AU  - van der Veer WE
FAU - Yang, Fan
AU  - Yang F
FAU - Donavan, Keith C
AU  - Donavan KC
FAU - Penner, Reginald M
AU  - Penner RM
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - Nano Lett
JT  - Nano letters
JID - 101088070
RN  - 0 (Cadmium Compounds)
RN  - 0 (Selenium Compounds)
RN  - 7440-57-5 (Gold)
RN  - A7F646JC5C (cadmium selenide)
SB  - IM
MH  - Cadmium Compounds/*chemistry
MH  - Electrochemistry
MH  - Electrodes
MH  - Gold/chemistry
MH  - Light
MH  - Nanotechnology/*methods
MH  - Nanowires/*chemistry
MH  - Particle Size
MH  - Photochemistry
MH  - Selenium Compounds/*chemistry
MH  - Surface Properties
EDAT- 2010/03/26 06:00
MHDA- 2010/07/16 06:00
CRDT- 2010/03/26 06:00
PHST- 2010/03/26 06:00 [entrez]
PHST- 2010/03/26 06:00 [pubmed]
PHST- 2010/07/16 06:00 [medline]
AID - 10.1021/nl100483v [doi]
PST - ppublish
SO  - Nano Lett. 2010 Apr 14;10(4):1481-5. doi: 10.1021/nl100483v.