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Title: Nickel porphyrins for memory optical applications

Patent ·
OSTI ID:873234
 [1];  [2];  [3];  [4];  [5];  [6]
  1. Tijeras, NM
  2. Albuquerque, NM
  3. Vacaville, CA
  4. St. Louis, MO
  5. Manteca, CA
  6. Davis, CA
+ Show Author Affiliations

The present invention relates to a nickel-porphyrin derivative in a matrix, the nickel-porphyrin derivative comprising at least two conformational isomers, a lower-energy-state conformer and a higher-energy-state conformer, such that when the higher-energy-state conformer is generated from the lower-energy-state conformer following absorption of a photon of suitable energy, the time to return to the lower-energy-state conformer is greater than 40 nanoseconds at approximately room temperature. The nickel-porphyrin derivative is useful in optical memory applications.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation ()
Patent Number(s):
US 6117369
OSTI ID:
873234
Country of Publication:
United States
Language:
English

References (3)

Synthesis, Structure, Electronic Spectroscopy, Photophysics, Electrochemistry, and X-ray Photoelectron Spectroscopy of Highly-Electron-Deficient [5,10,15,20-Tetrakis(perfluoroalkyl)porphinato]zinc(II) Complexes and Their Free Base Derivatives journal January 1996
Picosecond to Microsecond Photodynamics of a Nonplanar Nickel Porphyrin:  Solvent Dielectric and Temperature Effects journal April 1998
Representation of Nonplanar Structures of Nickel(II) 5,15-Disubstituted Porphyrins in Terms of Displacements along the Lowest-Frequency Normal Coordinates of the Macrocycle journal January 1996

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Related Subjects

nickel
porphyrins
memory
optical
applications
relates
nickel-porphyrin
derivative
matrix
comprising
conformational
isomers
lower-energy-state
conformer
higher-energy-state
generated
following
absorption
photon
suitable
energy
time
return
40
nanoseconds
approximately
temperature
useful
nickel-porphyrin derivative
optical memory
/252/999/