Evidences of the Defect Pool Model in the dark J-V characteristics of hydrogenated amorphous silicon based p-i-n devices

In the scientific literature the density of states of hydrogenated amorphous silicon has been assumed to be either uniform or spatially variable inside the intrinsic layer of p-i-n solar cells. The dependence of the dark current voltage characteristics of amorphous silicon based solar cells with res...

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Detalhes bibliográficos
Autores: Sturiale, Alejandro Ernesto, Rubinelli, Francisco Alberto
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2008
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositório:CONICET Digital (CONICET)
Idioma:inglês
OAI Identifier:oai:ri.conicet.gov.ar:11336/19802
Acesso em linha:http://hdl.handle.net/11336/19802
Access Level:Acceso aberto
Palavra-chave:Defect Pool
Amorphous Silicon
Solar Cells
Dark Current Voltage Characteristics
https://purl.org/becyt/ford/2.2
https://purl.org/becyt/ford/2
Descrição
Resumo:In the scientific literature the density of states of hydrogenated amorphous silicon has been assumed to be either uniform or spatially variable inside the intrinsic layer of p-i-n solar cells. The dependence of the dark current voltage characteristics of amorphous silicon based solar cells with respect to the intrinsic layer thickness and to the mobility gap of a thin interfacial layer grown at the p/i interface is explored with numerical techniques. Our results indicate that the reported experimental trends can be adequately explained with the defect pool model and not by assuming an uniform density of states in the intrinsic layer.