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The gaas solar cells with v-grooved emitters
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fatemi, N. Thomas, R. D. Wilt, D. M. Landis, Geoffrey A. Bailey, Sheila G. |
| Copyright Year | 1989 |
| Description | Geometrically structured surfaces have become increasingly important to solar cell efficiency improvements and radiation tolerance. Gallium arsenide solar cells with a V-grooved front surface which demonstrate improved optical coupling and higher short-circuit current compared to planar cells were fabricated. GaAs homojunction cells were fabricated by organometallic chemical vapor deposition (OMCVD) on an n+ substrate. The V-grooves were formed on the surface with an anisotropic etch, and an n-type buffer and p-type emitter were grown by OMCVD, followed by ohmic contacts. Reflectivity measurements show significantly lower reflectance for the microgrooved cell compared to the planar structure. The short circuit current of the V-grooved solar cell is consistently higher than that of the planar controls. |
| File Size | 5113149 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890016920 |
| Archival Resource Key | ark:/13960/t4dn91x7g |
| Language | English |
| Publisher Date | 1989-01-01 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Solar Cells Gallium Arsenides Short Circuit Currents Electromagnetic Absorption Epitaxy Planar Structures Optical Coupling Etching V Grooves Vapor Deposition Quantum Efficiency Semiconductors Materials Surface Properties Emitters Antireflection Coatings P-n Junctions Reflectance Homojunctions Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
