Matches in SemOpenAlex for { <https://semopenalex.org/work/W2178728413> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W2178728413 abstract "Efficient and inexpensive solar cells are necessary for photovoltaics to be widely adopted for mainstream electricity generation. For this to occur, the recombination losses of charge carriers (i.e. electrons or holes) must be minimised using a surface passivation technique suitable for manufacturing. In the literature, it has been shown that the aluminium oxide films are negatively charged dielectrics that provide excellent surface passivation of silicon solar cells. Meanwhile, sputtering has been shown to be an inexpensive thin film deposition method that is suitable for manufacturing. This thesis work aims to combine the excellent passivation properties of aluminium oxide with the manufacturing advantages offered by sputtering.We show - for the first time - that sputtering is capable of depositing negatively charged aluminium oxide films that provide very good surface passivation of crystalline silicon. Effective surface recombination velocities of 24.6 cm/s and 9 cm/s are achieved on 0.8 Ohm.cm p-type crystalline silicon and 1 Ohm.cm n-type crystalline silicon respectively, with charges in the range of -1E11 to -1E13 per square centimetre. We specify the sputtering requirements and processing conditions required for achieving these results, showing the effect of the various deposition and annealing parameters. After investigating the physical characteristics of the sputtered aluminium oxide films using thin film measurement techniques such as Rutherford Backscattering Spectrometry and Secondary Ion Mass Spectroscopy, we conclude that the current levels of surface passivation attained using aluminium oxide films appear to be closely related to the interfacial layer and the presence of hydrogen. In some cases the level of surface passivation is most likely limited by the incorporation of unwanted impurities. We determine the composition and bonding of aluminium oxide films, discussing their significance to the various hypotheses concerning the origin of the negative charge. Finally, we demonstrate that sputtered aluminium oxide can be applied to solar cells by fabricating passivated emitter and rear cells with efficiencies as high as 20%. The results of this thesis provide the foundation for the sputtered aluminium oxide technology and its application to industrial solar cells." @default.
- W2178728413 created "2016-06-24" @default.
- W2178728413 creator A5026714996 @default.
- W2178728413 creator A5091908861 @default.
- W2178728413 date "2011-05-26" @default.
- W2178728413 modified "2023-09-23" @default.
- W2178728413 title "Surface Passivation of Crystalline Silicon by Sputtered Aluminium Oxide" @default.
- W2178728413 doi "https://doi.org/10.25911/5d7a276d416fc" @default.
- W2178728413 hasPublicationYear "2011" @default.
- W2178728413 type Work @default.
- W2178728413 sameAs 2178728413 @default.
- W2178728413 citedByCount "1" @default.
- W2178728413 countsByYear W21787284132013 @default.
- W2178728413 crossrefType "dissertation" @default.
- W2178728413 hasAuthorship W2178728413A5026714996 @default.
- W2178728413 hasAuthorship W2178728413A5091908861 @default.
- W2178728413 hasConcept C159985019 @default.
- W2178728413 hasConcept C162743726 @default.
- W2178728413 hasConcept C171250308 @default.
- W2178728413 hasConcept C19067145 @default.
- W2178728413 hasConcept C191897082 @default.
- W2178728413 hasConcept C192562407 @default.
- W2178728413 hasConcept C22423302 @default.
- W2178728413 hasConcept C2777047311 @default.
- W2178728413 hasConcept C2777855556 @default.
- W2178728413 hasConcept C2779227376 @default.
- W2178728413 hasConcept C2779667780 @default.
- W2178728413 hasConcept C2779851234 @default.
- W2178728413 hasConcept C33574316 @default.
- W2178728413 hasConcept C49040817 @default.
- W2178728413 hasConcept C513153333 @default.
- W2178728413 hasConcept C544956773 @default.
- W2178728413 hasConcept C87359718 @default.
- W2178728413 hasConceptScore W2178728413C159985019 @default.
- W2178728413 hasConceptScore W2178728413C162743726 @default.
- W2178728413 hasConceptScore W2178728413C171250308 @default.
- W2178728413 hasConceptScore W2178728413C19067145 @default.
- W2178728413 hasConceptScore W2178728413C191897082 @default.
- W2178728413 hasConceptScore W2178728413C192562407 @default.
- W2178728413 hasConceptScore W2178728413C22423302 @default.
- W2178728413 hasConceptScore W2178728413C2777047311 @default.
- W2178728413 hasConceptScore W2178728413C2777855556 @default.
- W2178728413 hasConceptScore W2178728413C2779227376 @default.
- W2178728413 hasConceptScore W2178728413C2779667780 @default.
- W2178728413 hasConceptScore W2178728413C2779851234 @default.
- W2178728413 hasConceptScore W2178728413C33574316 @default.
- W2178728413 hasConceptScore W2178728413C49040817 @default.
- W2178728413 hasConceptScore W2178728413C513153333 @default.
- W2178728413 hasConceptScore W2178728413C544956773 @default.
- W2178728413 hasConceptScore W2178728413C87359718 @default.
- W2178728413 hasLocation W21787284131 @default.
- W2178728413 hasOpenAccess W2178728413 @default.
- W2178728413 hasPrimaryLocation W21787284131 @default.
- W2178728413 hasRelatedWork W1539695312 @default.
- W2178728413 hasRelatedWork W1599051720 @default.
- W2178728413 hasRelatedWork W1947899674 @default.
- W2178728413 hasRelatedWork W1965002744 @default.
- W2178728413 hasRelatedWork W1972647548 @default.
- W2178728413 hasRelatedWork W2017497668 @default.
- W2178728413 hasRelatedWork W2040174200 @default.
- W2178728413 hasRelatedWork W2163104092 @default.
- W2178728413 hasRelatedWork W2215802200 @default.
- W2178728413 hasRelatedWork W2221889020 @default.
- W2178728413 hasRelatedWork W2273113305 @default.
- W2178728413 hasRelatedWork W2461027068 @default.
- W2178728413 hasRelatedWork W2557695769 @default.
- W2178728413 hasRelatedWork W2565225543 @default.
- W2178728413 hasRelatedWork W2801299317 @default.
- W2178728413 hasRelatedWork W2807751145 @default.
- W2178728413 hasRelatedWork W2808606570 @default.
- W2178728413 hasRelatedWork W2922223004 @default.
- W2178728413 hasRelatedWork W2962389737 @default.
- W2178728413 hasRelatedWork W2965093958 @default.
- W2178728413 isParatext "false" @default.
- W2178728413 isRetracted "false" @default.
- W2178728413 magId "2178728413" @default.
- W2178728413 workType "dissertation" @default.