Power Recovery of Radiation Damaged MOCVD Grown Indium Phosphide on Silicon Solar Cells Through Argon-Ion Laser Annealing.

reportActive / Technical Report | Accession Number: ADA315160 | Open PDF

Abstract:

This thesis reports the results of a laser annealing technique used to remove defect sites from radiation damaged indium phosphide on silicon MOCVD grown solar cells. This involves the illumination of damaged solar cells with a continuous wave laser to produce a large forward-biased current. The InPSi cells were irradiated with 1 MeV electrons to a given fluence, and tested for degradation. Light from an argon laser was used to illuminate four cells with an irradiance of 2.5 Wsq cm, producing a current density 3 to 5 times larger than AMO conditions. Cells were annealed at 19 deg C with the laser and at 25 deg C under AMO conditions. Annealing under laser illumination of np-type cells resulted in recovery of 48. Pn type cells lost 4 to 12 of the assumed degradaton. Annealing under AMO conditions resulted in power recovery of 70 in np type cells. Pn-type cells recovered approximately 16 of lost power. Results indicate that significant power recovery results from the annealing of defects within np type InPSi solar cells.

Author(s):
Boyer, Lynn L., Iv
Author Organization(s):
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Descriptive Note:
Master's thesis,
Supplementary Note:
Original contains color plates; All DTIC/NTIS reproductions will be in black and white.
Pagination:
0149

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
NPS
 Subject Terms
Joint Capability Areas:
JCA_5.3_Planning; JCA_5_Command and Control; JCA_1.2.7_Experimentation; JCA_1.2.3_Educating; JCA_4.6_Engineering; JCA_5.3.1_Analyze Problem; JCA_1.2.5_Lessons Learned; JCA_1.3.2_Personnel Management; JCA_1.2.6_Concepts
Modernization Areas:
Space
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*IONS, *METALS, *RADIATION, *ANNEALING, *RECOVERY, *SOLAR CELLS, *SILICON, *POWER, *INDIUM PHOSPHIDES, *ARGON LASERS, DAMAGE, DEGRADATION, SITES, THESES, CHEMICAL VAPOR DEPOSITION, ILLUMINATION, DEFECTS(MATERIALS), LASER APPLICATIONS, ORGANIC COMPOUNDS, N TYPE SEMICONDUCTORS, P TYPE SEMICONDUCTORS, CONTINUOUS WAVE LASERS
Field(s)/Group(s):
Inorganic Chemistry, Physical Chemistry, Lasers and Masers, Electric Power Production and Distribution
Keyword(s):
FORWARD BIASED CURRENT, MOCVD(METALORGANIC CHEMICAL VAPOR DEPOSITION), METALORGANIC CHEMICAL VAPOR DEPOSITION
Report Date:
1996 Jun 01
Creation Date:
1996 Oct 23