Title:
METHOD FOR MEASURING LEVEL IN FORBIDDEN BAND BY TWO- WAVELENGTH EXCITATION PHOTO-LUMINESCENCE AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP3862964
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for measuring a level in a forbidden band by two-wavelength excitation photo-luminescence capable of simply and accurately determining a non-radiative recombination parameter.
SOLUTION: This device for measuring the level in the forbidden band by two-wavelength excitation photo-luminescence is provided with a means for performing pulse irradiation with exciting light equal to a forbidden-band energy width or more or exciting light equal to the forbidden band energy width or less, a means for obtaining the time constant of time-resolved response based on the pule irradiation, and a means for measuring the parameter for determining the level of non-radiative recombination on the basis of the time constant.
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Inventors:
Norihiko Kamada
Application Number:
JP2001091521A
Publication Date:
December 27, 2006
Filing Date:
March 28, 2001
Export Citation:
Assignee:
Japan Science and Technology Agency
International Classes:
G01N21/64; H01L21/66; (IPC1-7): G01N21/64; H01L21/66
Domestic Patent References:
| JP60207346A | ||||
| JP2001007173A | ||||
| JP2000304699A |
Attorney, Agent or Firm:
Mamoru Shimizu