Subject » BMEVIEEBV00
Solar Cells Laboratory Practice
Napelemek laboratórium
A tantárgyleírás hatályossága
Hatályosság kezdete:
2026. March 21.
Hatályosság vége:
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| Subject name (Hungarian, English) |
Napelemek laboratórium
Solar Cells Laboratory Practice
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| Subject code | BMEVIEEBV00 | ||||||||||||
| Subject type | — | ||||||||||||
| Training Level | — | ||||||||||||
| Course types and hours (weekly/semester) |
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| Assessment type | félévközi érdemjegy | ||||||||||||
| Credits | 2 | ||||||||||||
| Subject coordinator |
Plesz Balázs
position: egyetemi docens
contact:
plesz.balazs@vik.bme.hu
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| Responsible department |
Elektronikus Eszközök Tanszéke
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| Faculty | Villamosmérnöki és Informatikai Kar | ||||||||||||
| Subject website | — | ||||||||||||
| Primary curriculum type | — | ||||||||||||
| Direct prerequisites – Strong prerequisite | none | ||||||||||||
| Direct prerequisites – Weak prerequisite | none | ||||||||||||
| Direct prerequisites – Parallel prerequisite | none | ||||||||||||
| Direct prerequisites – Milestone prerequisite | none | ||||||||||||
| Direct prerequisites – Exclusion | none |
Objectives
Programme
1st. block
Introduction to the operation of solar cells, review of the main parameters and characteristics.
Different raw materials and solar cell types.
2nd. block
Introduction to solar cell technology, overview of the basic steps of manufacturing.
Fabrication of mono-/multi-crystalline silicon, wafer processing and physical parameters.
3rd. block
Si wafer types, measurement of their physical parameters, characterization of the raw material (geometrical dimensions, doping types and doping concentrations).
Overview of clean room, function of the clean environment in semiconductor technology.
4th. block
Wet chemical cleaning of Si wafer, surface texturing, and optical microscopy applied to examine the textured surface.
Backside BSF layer formation with solid phase diffusion, doping material predeposition.
5th. block
Theoretical review and practical basics of the thermal oxidation of Si, demonstrations and comparison of different oxidized Si wafers.
Calculation of the thermal oxide thickness, simulations.
6th. block
PSG etching from the back surface, chemical preparation of the wafer and thermal oxidation with calculated parameters.
Thickness measurement of oxide layer, photoresist coating of the wafer.
7th. block
Theoretical review of the solid phase diffusion.
Determination of the diffusion parameters of the solar cell by simulation.
8th. block
Front surface oxide etching, pre-deposition and drive-in of the doping material.
Diffusion step characterization: sheet resistance and junction depth measurement, followed by photoresist coating of the Si wafer.
9th. block
Theoretical basics of UV lithography, overview of lithographic devices employed in semiconductor technology.
Opening of contact windows on the surface of the wafer using wet chemical etching methods.
10th. block
Metallization of the solar cell, metal layer deposition with vacuum evaporation.
Metal layer thickening by galvanic deposition, measurement of metal layer thickness.
11th. block
Theoretical overview of measurement techniques used in case of solar cells, presentation of the measuring equipment.
Demonstration of the I-V characterisation techniques by manual measurement for both solar cells and solar modules.
12th. block
Characterisation of the manufactured solar cell with automatic equipment, comparison between manual and automatic characterisation methods, determination of thermal dependencies of the cell parameters.
Measurement of solar cells manufactured with different technologies, comparison of the results.
13th. block
Presentation of the concept and the measuring technique of spectral response function. Performing the spectral response measurement, obtaining spectral responses at different temperatures. Drawing conclusions from obtained spectral responses, correlation between the measured electrical parameters.
Correlations between reflexion of the incoming light and the efficiency of the solar cells, reflexion measurements on different surface qualities.
14th. block
Writing of the mid-semester test, handing in the report.
Aim of the subject is to offer an outline on the solar cell’s device physics, manufacturing and technology. During the semester we offer each student the possibility of manufacturing a monocrystalline Si based solar cell in our semiconductor laboratory. The students get acquainted with basic semiconductor fabrication processes, as well as with the influences of the applied technological steps on device operation. The second important objective of the subject is the presentation of the measuring techniques applied to solar cells. The discussion of the problems arising during the measurements contributes to the better understanding of the solar cell operation, thus the students can deepen their theoretical knowledge.
Learning outcomes
Ez a tantárgy a KKK rendeletben meghatározott, következő kompetenciák fejlesztését szolgálja:
Knowledge
No learning outcomes recorded.
Skills
No learning outcomes recorded.
Attitudes
No learning outcomes recorded.
Autonomy and responsibility
No learning outcomes recorded.
Oktatási módszertan
Lesson based overview of the theoretical bases for the laboratory practices, followed by manufacturing technology and measurement/characterization operations performed in the semiconductor laboratory.
Tanulástámogató anyagok
Online források
M. A. Green: Applied Photovoltaics ; A. Luque: Handbook of Photovoltaic Science and Engineering ; T. Markvart , L. Castaner: Practical Handbook of Photovoltaics, Elsevier Science, 2003. ; Photovoltaics CDROM, http://pvcdrom.pveducation.org/
Recommended preliminary knowledge for completing the subject
Knowledge type competencies
(azon előzetes ismeretek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
Electron physics, Physics, Microelectronics
Skill type competencies
(azon előzetes képességek és készségek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
nincs
Recommended (non-compulsory) preliminary competencies
(azon ajánlott (nem kötelező) előzetesen megszerzendő kompetenciák összessége, amelyek jelentősen hozzájárulnak a tantárgy eredményes teljesítéséhez)
Electron physics, Physics, Microelectronics
General rules
Requirements:
During the term:
One mid-semester test. To obtain the mid-semester mark a mid-semester test with at least the mark “sufficient” and the full completion of every laboratory practice is necessary.
Additional possibilities:
An opportunity of a supplementary mid-semester test is provided in case of an unsuccessful mid-semester test in the term period. During the repeat period one additional supplementary mid-semester test can be written. The laboratory practice due to the high costs of the technologies applied can only be repeated during the term, based on special agreement.
Assessment methods
In-term assessments
No detailed assessments provided.
Weight of in-term assessments
No weights provided.
Exam-period assessments
No detailed assessments provided.
Weight of exam elements
No weights provided.
Grade calculation
No grade thresholds provided.
Attendance requirements
No attendance requirements provided.
Rules for retake and resubmission
Not provided.
Short description
Not provided.
Detailed description
Not provided.
Recommended courses
The subject cannot be added if the student completed the following subjects:
VIEEM358 Solar Cells Manufacturing and VIEEJV55 Integrated Circuit Manufacturing. The preliminary study of the course VIEEAV99 Solar Cells and Renewable Energy Sources is advised, but not compulsory.
Workload to complete the subject
No workload breakdown provided.
Validity of subject requirements
Requirements valid from:
—
Requirements valid until:
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Curriculum placement
No curriculum placements recorded for this subject version.