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Título del libro: 2017 Ieee 44th Photovoltaic Specialist Conference, Pvsc 2017
Título del capítulo: The role of crystalline fraction on the photoconductive response in polymorphous silicon materials for thin films solar cells

Autores UNAM:
BETSABEE MAREL MONROY PELAEZ; ATEET DUTT; GUILLERMO SANTANA RODRIGUEZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2018
Palabras clave:

Nanocrystals; Photoconductivity; Plasma CVD; Plasma enhanced chemical vapor deposition; Silicon; Silicon compounds; Silicon solar cells; Solar cells; Thin film solar cells; Crystalline fractions; Nanocrystalline phase; Optoelectrical properties; Photoconductive response; Plasma enhanced chemical vapor depositions (PE CVD); Polymorphous silicon; Superficial oxidation; Thin films solar cells; Thin films


Resumen:

In the present work, we show that controlling structural and chemical parameters is possible to modify the optoelectrical properties of hydrogenated Polymorphous Silicon thin films (pm-Si:H), grown by Plasma Enhanced Chemical Vapor Deposition (PECVD). From the Raman analysis, we observe that the nanocrystalline phase is present in all deposited films. On the other hand, with XPS it is seen that an oxidation process takes place for the samples grown at high hydrogen dilutions, while the others samples only show superficial oxidation after ambient exposure. The samples were exposured to light soaking treatment for long time and resultantly, shown different behavior in photoconductivity response. © 2017 IEEE.


Entidades citadas de la UNAM: