In Situ Roughness Measurements for the Solar Cell Industry Using an Atomic Force Microscope

Areal roughness parameters always need to be under control in the thin film solar cell industry because of their close relationship with the electrical efficiency of the cells. In this work, these parameters are evaluated for measurements carried out in a typical fabrication area for this industry....

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Main Authors: Higinio González-Jorge, Victor Alvarez-Valado, Jose Luis Valencia, Soledad Torres
Format: Article
Language:English
Published: MDPI AG 2010-04-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/10/4/4002/
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author Higinio González-Jorge
Victor Alvarez-Valado
Jose Luis Valencia
Soledad Torres
author_facet Higinio González-Jorge
Victor Alvarez-Valado
Jose Luis Valencia
Soledad Torres
author_sort Higinio González-Jorge
collection DOAJ
description Areal roughness parameters always need to be under control in the thin film solar cell industry because of their close relationship with the electrical efficiency of the cells. In this work, these parameters are evaluated for measurements carried out in a typical fabrication area for this industry. Measurements are made using a portable atomic force microscope on the CNC diamond cutting machine where an initial sample of transparent conductive oxide is cut into four pieces. The method is validated by making a comparison between the parameters obtained in this process and in the laboratory under optimal conditions. Areal roughness parameters and Fourier Spectral Analysis of the data show good compatibility and open the possibility to use this type of measurement instrument to perform in situ quality control. This procedure gives a sample for evaluation without destroying any of the transparent conductive oxide; in this way 100% of the production can be tested, so improving the measurement time and rate of production.
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spelling doaj.art-44e17262c83d4f7ea18b22403c870eff2022-12-22T03:10:30ZengMDPI AGSensors1424-82202010-04-011044002400910.3390/s100404002In Situ Roughness Measurements for the Solar Cell Industry Using an Atomic Force MicroscopeHiginio González-JorgeVictor Alvarez-ValadoJose Luis ValenciaSoledad TorresAreal roughness parameters always need to be under control in the thin film solar cell industry because of their close relationship with the electrical efficiency of the cells. In this work, these parameters are evaluated for measurements carried out in a typical fabrication area for this industry. Measurements are made using a portable atomic force microscope on the CNC diamond cutting machine where an initial sample of transparent conductive oxide is cut into four pieces. The method is validated by making a comparison between the parameters obtained in this process and in the laboratory under optimal conditions. Areal roughness parameters and Fourier Spectral Analysis of the data show good compatibility and open the possibility to use this type of measurement instrument to perform in situ quality control. This procedure gives a sample for evaluation without destroying any of the transparent conductive oxide; in this way 100% of the production can be tested, so improving the measurement time and rate of production.http://www.mdpi.com/1424-8220/10/4/4002/surface metrologyatomic force microscopysolar celltransparent conductive oxideareal roughness
spellingShingle Higinio González-Jorge
Victor Alvarez-Valado
Jose Luis Valencia
Soledad Torres
In Situ Roughness Measurements for the Solar Cell Industry Using an Atomic Force Microscope
Sensors
surface metrology
atomic force microscopy
solar cell
transparent conductive oxide
areal roughness
title In Situ Roughness Measurements for the Solar Cell Industry Using an Atomic Force Microscope
title_full In Situ Roughness Measurements for the Solar Cell Industry Using an Atomic Force Microscope
title_fullStr In Situ Roughness Measurements for the Solar Cell Industry Using an Atomic Force Microscope
title_full_unstemmed In Situ Roughness Measurements for the Solar Cell Industry Using an Atomic Force Microscope
title_short In Situ Roughness Measurements for the Solar Cell Industry Using an Atomic Force Microscope
title_sort in situ roughness measurements for the solar cell industry using an atomic force microscope
topic surface metrology
atomic force microscopy
solar cell
transparent conductive oxide
areal roughness
url http://www.mdpi.com/1424-8220/10/4/4002/
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AT victoralvarezvalado insituroughnessmeasurementsforthesolarcellindustryusinganatomicforcemicroscope
AT joseluisvalencia insituroughnessmeasurementsforthesolarcellindustryusinganatomicforcemicroscope
AT soledadtorres insituroughnessmeasurementsforthesolarcellindustryusinganatomicforcemicroscope