Abstract
Positioning of a scanning tunneling microscope (STM) tip above Cu-tetra-(3,5-di-tertiary-butyl-phenyl)-porphyrin (Cu-TBPP) molecules on Cu(100) is found to induce plasmon-mediated emission and molecular luminescence when bias voltages are above ∼ 2.3 V. Optical spectra acquired at a low current of 0.2 nA suggest not only the enhancement effect of the molecules on light emission but also new features associated with the molecules. The quantum efficiency of such light emission excited by inelastic tunneling is on the order of 10-6 photons per electron.
| Original language | English |
|---|---|
| Pages (from-to) | 4898-4902 |
| Number of pages | 5 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 41 |
| Issue number | 7 B |
| Publication status | Published - Jul 1 2002 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Light emission from porphyrin molecules induced by a scanning tunneling microscope. / Dong, Zhen Chao; Kar, Asit; Zou, Zhi Qiang; Ohgi, Taizo; Dorozhkin, Pavel; Fujita, Daisuke; Yokoyama, Shiyoshi; Terui, Toshifumi; Yamada, Toshiki; Kamikado, Toshiya; Zhou, Minniu; Mashiko, Shinro; Okamoto, Takayuki.
In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 41, No. 7 B, 01.07.2002, p. 4898-4902.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Light emission from porphyrin molecules induced by a scanning tunneling microscope
AU - Dong, Zhen Chao
AU - Kar, Asit
AU - Zou, Zhi Qiang
AU - Ohgi, Taizo
AU - Dorozhkin, Pavel
AU - Fujita, Daisuke
AU - Yokoyama, Shiyoshi
AU - Terui, Toshifumi
AU - Yamada, Toshiki
AU - Kamikado, Toshiya
AU - Zhou, Minniu
AU - Mashiko, Shinro
AU - Okamoto, Takayuki
PY - 2002/7/1
Y1 - 2002/7/1
N2 - Positioning of a scanning tunneling microscope (STM) tip above Cu-tetra-(3,5-di-tertiary-butyl-phenyl)-porphyrin (Cu-TBPP) molecules on Cu(100) is found to induce plasmon-mediated emission and molecular luminescence when bias voltages are above ∼ 2.3 V. Optical spectra acquired at a low current of 0.2 nA suggest not only the enhancement effect of the molecules on light emission but also new features associated with the molecules. The quantum efficiency of such light emission excited by inelastic tunneling is on the order of 10-6 photons per electron.
AB - Positioning of a scanning tunneling microscope (STM) tip above Cu-tetra-(3,5-di-tertiary-butyl-phenyl)-porphyrin (Cu-TBPP) molecules on Cu(100) is found to induce plasmon-mediated emission and molecular luminescence when bias voltages are above ∼ 2.3 V. Optical spectra acquired at a low current of 0.2 nA suggest not only the enhancement effect of the molecules on light emission but also new features associated with the molecules. The quantum efficiency of such light emission excited by inelastic tunneling is on the order of 10-6 photons per electron.
UR - http://www.scopus.com/inward/record.url?scp=6444244843&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=6444244843&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:6444244843
VL - 41
SP - 4898
EP - 4902
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 7 B
ER -