Role of TCO layer on the performance of a-Si:H solar cells

N.  Carvalho; Isabel  Ferreira; Elvira Maria Correia Fortunato; Rodrigo Ferrão de Paiva Martins; Leopoldo José Martinho  Guimarães

Role of TCO layer on the performance of a-Si:H solar cells

N. Carvalho, Isabel Ferreira, Elvira Maria Correia Fortunato, Rodrigo Ferrão de Paiva Martins, Leopoldo José Martinho Guimarães

DCM - Departamento de Ciência dos Materiais

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

It is known that the performances of the a-Si.H solar celIs are affected by theTransparent Conductive Oxide (TCO) fil~ deposited on the glass substrate [1]. Here, wepropose to study the role of the TCO structure on the main characteristics of amorph~ussilicon solar cells.As references, we choose two different ITOs deposited by Thermal ReactiveEvaporation, showing different surface morphologies (type A and type B).These differentsurface morphologies can be obtained by changing some deposition parameters, namely thedeposition rate and the alloy concentration. Besides that, as the ITO layer is reduced ",:henexposed to a hydrogen plasma, a protective thin SiO layer is also used to prev.ent.filrnsreduction. Preliminary studies concerning the role of the SiO layer showed a sígníficantincrease (up to 17%)on the solar celIsefficiency.AlI these data will be presented towards theimplementationof the final solar cell efficiencyand stability.

Original language	English
Title of host publication	Proceedings of the eleventh European Communities Photovoltaic Solar Energy Conference
Pages	758
Number of pages	1
Publication status	Published - Oct 1992

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title = "Role of TCO layer on the performance of a-Si:H solar cells",

abstract = "It is known that the performances of the a-Si.H solar celIs are affected by theTransparent Conductive Oxide (TCO) fil~ deposited on the glass substrate [1]. Here, wepropose to study the role of the TCO structure on the main characteristics of amorph~ussilicon solar cells.As references, we choose two different ITOs deposited by Thermal ReactiveEvaporation, showing different surface morphologies (type A and type B).These differentsurface morphologies can be obtained by changing some deposition parameters, namely thedeposition rate and the alloy concentration. Besides that, as the ITO layer is reduced {"},:henexposed to a hydrogen plasma, a protective thin SiO layer is also used to prev.ent.filrnsreduction. Preliminary studies concerning the role of the SiO layer showed a s{\'i}gn{\'i}ficantincrease (up to 17%)on the solar celIsefficiency.AlI these data will be presented towards theimplementationof the final solar cell efficiencyand stability.",

author = "N. Carvalho and Isabel Ferreira and Fortunato, {Elvira Maria Correia} and Martins, {Rodrigo Ferr{\~a}o de Paiva} and Guimar{\~a}es, {Leopoldo Jos{\'e} Martinho}",

year = "1992",

month = oct,

language = "English",

pages = "758",

booktitle = "Proceedings of the eleventh European Communities Photovoltaic Solar Energy Conference",

}

Role of TCO layer on the performance of a-Si:H solar cells. / Carvalho, N. ; Ferreira, Isabel ; Fortunato, Elvira Maria Correia ; Martins, Rodrigo Ferrão de Paiva ; Guimarães, Leopoldo José Martinho .

Proceedings of the eleventh European Communities Photovoltaic Solar Energy Conference. 1992. p. 758.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Role of TCO layer on the performance of a-Si:H solar cells

AU - Carvalho, N.

AU - Ferreira, Isabel

AU - Fortunato, Elvira Maria Correia

AU - Martins, Rodrigo Ferrão de Paiva

AU - Guimarães, Leopoldo José Martinho

PY - 1992/10

Y1 - 1992/10

N2 - It is known that the performances of the a-Si.H solar celIs are affected by theTransparent Conductive Oxide (TCO) fil~ deposited on the glass substrate [1]. Here, wepropose to study the role of the TCO structure on the main characteristics of amorph~ussilicon solar cells.As references, we choose two different ITOs deposited by Thermal ReactiveEvaporation, showing different surface morphologies (type A and type B).These differentsurface morphologies can be obtained by changing some deposition parameters, namely thedeposition rate and the alloy concentration. Besides that, as the ITO layer is reduced ",:henexposed to a hydrogen plasma, a protective thin SiO layer is also used to prev.ent.filrnsreduction. Preliminary studies concerning the role of the SiO layer showed a sígníficantincrease (up to 17%)on the solar celIsefficiency.AlI these data will be presented towards theimplementationof the final solar cell efficiencyand stability.

AB - It is known that the performances of the a-Si.H solar celIs are affected by theTransparent Conductive Oxide (TCO) fil~ deposited on the glass substrate [1]. Here, wepropose to study the role of the TCO structure on the main characteristics of amorph~ussilicon solar cells.As references, we choose two different ITOs deposited by Thermal ReactiveEvaporation, showing different surface morphologies (type A and type B).These differentsurface morphologies can be obtained by changing some deposition parameters, namely thedeposition rate and the alloy concentration. Besides that, as the ITO layer is reduced ",:henexposed to a hydrogen plasma, a protective thin SiO layer is also used to prev.ent.filrnsreduction. Preliminary studies concerning the role of the SiO layer showed a sígníficantincrease (up to 17%)on the solar celIsefficiency.AlI these data will be presented towards theimplementationof the final solar cell efficiencyand stability.

M3 - Conference contribution

SP - 758

BT - Proceedings of the eleventh European Communities Photovoltaic Solar Energy Conference

ER -