High efficiency CdTe/CdS thin film solar cells with a good stability can be obtained if a low gap. high conductivity p-type semiconductor, such as Sb2Te3, is used as a back contact for CdTe. However, even though Sb2Te3 is used as a back contact, some cells can exhibit a low fill factor. This, at first sight, could suggest that the back contact is not the right one. Here we would like to show that a low fill factor could depend not only on the back contact but also on the front contact and on the amount of Na-diffusion from the soda lime glass substrate. (C) 2000 Elsevier Science S.A. All rights reserved.
Back contacts to CSS CdS/CdTe solar cells and stability of performances / Romeo, Nicola; Bosio, Alessio; Tedeschi, Riccardo Alfredo Arturo; Canevari, V.. - In: THIN SOLID FILMS. - ISSN 0040-6090. - 361-362:(2000), pp. 327-329. [10.1016/S0040-6090(99)00765-8]
Back contacts to CSS CdS/CdTe solar cells and stability of performances
ROMEO, Nicola;BOSIO, Alessio;TEDESCHI, Riccardo Alfredo Arturo;
2000-01-01
Abstract
High efficiency CdTe/CdS thin film solar cells with a good stability can be obtained if a low gap. high conductivity p-type semiconductor, such as Sb2Te3, is used as a back contact for CdTe. However, even though Sb2Te3 is used as a back contact, some cells can exhibit a low fill factor. This, at first sight, could suggest that the back contact is not the right one. Here we would like to show that a low fill factor could depend not only on the back contact but also on the front contact and on the amount of Na-diffusion from the soda lime glass substrate. (C) 2000 Elsevier Science S.A. All rights reserved.| File | Dimensione | Formato | |
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