Recombination Lifetimes Using the RCPCD Technique: Comparison with Other Methods
Conference
·
OSTI ID:860932
The theory and operation of the resonance-coupled photoconductive decay (RCPCD) technique is described. Examples are presented of data measured on a wide variety of sample types. The RCPCD technique has been applied to a variety of wafer and thin-film materials. Using this technique, we can measure recombination lifetime over at least three decades of injection level. We can also measure relative values of minority-carrier mobility and diffusion length. By scanning the excitation wavelength, we can measure spectral response and photoconductive excitation spectra. Deep-level impurities have been detected by several variations of RCPCD.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC36-99-GO10337
- OSTI ID:
- 860932
- Report Number(s):
- NREL/CP-520-37084; TRN: US200524%%377
- Resource Relation:
- Related Information: Presented at the 2004 DOE Solar Energy Technologies Program Review Meeting, 25-28 October 2004, Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102005-2067; NREL/CD-520-37140)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
36 MATERIALS SCIENCE
DECAY
DIFFUSION LENGTH
EXCITATION
IMPURITIES
LIFETIME
RECOMBINATION
SPECTRA
SPECTRAL RESPONSE
SOLAR ENERGY
PV
RESONANCE-COUPLED PHOTOCONDUCTIVE DECAY (RCPCD)
THIN-FILMS
RECOMBINATION LIFETIME
MINORITY-CARRIER
MOBILITY
INJECTION-LEVEL SPECTROSCOPY (ILS)
PHOTODETECTORS
Solar Energy - Photovoltaics
36 MATERIALS SCIENCE
DECAY
DIFFUSION LENGTH
EXCITATION
IMPURITIES
LIFETIME
RECOMBINATION
SPECTRA
SPECTRAL RESPONSE
SOLAR ENERGY
PV
RESONANCE-COUPLED PHOTOCONDUCTIVE DECAY (RCPCD)
THIN-FILMS
RECOMBINATION LIFETIME
MINORITY-CARRIER
MOBILITY
INJECTION-LEVEL SPECTROSCOPY (ILS)
PHOTODETECTORS
Solar Energy - Photovoltaics