Damage reduction of the laser drilling process on back contact solar cells by chemical treatment

التفاصيل البيبلوغرافية
العنوان: Damage reduction of the laser drilling process on back contact solar cells by chemical treatment
المؤلفون: Cereceda, Eneko, Barredo Egusquiza, Josu, Gutierrez, José Rubén, Jimeno Cuesta, Juan Carlos, Fraile de Lerma, Alberto, Hermanns, Lutz Karl Heinz
المصدر: 27th European Photovoltaic Solar Energy Conference and Exhibition | 27th European Photovoltaic Solar Energy Conference and Exhibition | 24/09/2012 - 28/09/2012 | Frankfurt, Germany
بيانات النشر: E.T.S.I. Industriales (UPM)
سنة النشر: 2012
المجموعة: Universidad Politécnica de Madrid: Archivo Digital de la UPM
مصطلحات موضوعية: Ingeniería Civil y de la Construcción, Mecánica
الوصف: Production of back contact solar cells requires holes generations on the wafers to keep both positive and negative contacts on the back side of the cell. This drilling process weakens the wafer mechanically due to the presence of the holes and the damage introduced during the process as microcracks. In this study, several chemical processes have been applied to drilled wafers in order to eliminate or reduce the damage generated during this fabrication step. The treatments analyzed are the followings: alkaline etching during 1, 3 and 5 minutes, acid etching for 2 and 4 minutes and texturisation. To determine mechanical strength of the samples a common mechanical study has been carried out testing the samples by the Ring on Ring bending test and obtaining the stress state in the moment of failure by FE simulation. Finally the results obtained for each treatment were fitted to a three parameter Weibull distribution
نوع الوثيقة: conference object
وصف الملف: application/pdf
اللغة: English
Relation: https://oa.upm.es/20469/
الاتاحة: https://oa.upm.es/20469/
Rights: https://creativecommons.org/licenses/by-nc-nd/3.0/es/ ; info:eu-repo/semantics/openAccess
رقم الانضمام: edsbas.D9473737
قاعدة البيانات: BASE