Objective
INFRARED ABSORPTION AND THE DENSITY OF GAP STATES HAVE BEEN MEASURED OF SAMPLES OF THIN FILMS OF AMORPHOUS SILICON FABRICATED WITH DIFFERENT GROWTH RATES IN A PLASMA OF PURE SILANE AS WELL AS IN A PLASMA DILUTED WITH 55% HYDROGEN. FOR SAMPLES GROWN IN PURE SILANE THE DENSITY OF GAP STATES AND THE INFRARED ABSORPTION AT 2070 CM-1 INCREASE WITH INCREASING GROWTH RATES. INCREASE OF THESE QUANTITIES WITH INCREASING GROWTH RATE IS NOT PRESENT IN SAMPLES GROWN IN THE DILUTED PLASMA. FROM THESE DATA IT IS CONCLUDED THAT THE MICROSTRUCTURE OF THE GROWN LAYERS DETERMINES ITS ELECTRICAL QUALITY.
THE REFRACTIVE INDEX OF A 5000 ANGSTROM THICK MICRO-CRYSTALLINE SILICON LAYER ON GLASS HAS BEEN DETERMINED FROM REFLECTION AND TRANSMISSION OF MONOCHROMATIC LIGHT VERSUS WAVE LENGTH. THESE MEASUREMENTS WERE CARRIED OUT WITH LIGHT INCIDENT AT THE GLASS SUBSTRATE AND COMPARED WITH THOSE WHEN THE LIGHT IS INCIDENT AT THE MICRO-CRYSTALLINE LAYER. THE DIFFERENCE BETWEEN THE TWO MEASUREMENTS CAN BE EXPLAINED BY A 200 ANGSTROM THICK AMORPHOUS LAYER BETWEEN THE SUBSTRATE AND THE MICRO-CRYSTALLINE LAYER.
PARALLEL TO THESE EXPERIMENTS THE COMPUTER MODEL FOR THE SIMULATION OF DEVICES, INCLUDING SOLAR CELLS, HAS BEEN EXTENDED BY SURFACE RECOMBINATION AND AUGER RECOMBINATION. CURRENT-VOLTAGE DEPENDENCIES AND ELECTRICAL FIELD DISTRIBUTIONS OF P-I-N SOLAR CELLS AND P-I-P SANDWICH STRUCTURE HAVE BEEN CALCULATED.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology materials engineering amorphous solids amorphous semiconductors
- engineering and technology materials engineering coating and films
- natural sciences chemical sciences inorganic chemistry metalloids
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Data not available
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Data not available
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
2628 BL DELFT
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.