Optical Design and Analysis of Textured a-Si Solar Cells: Preprint

Optical Design and Analysis of Textured a-Si Solar Cells: Preprint

Research output: Contribution to conference › Paper

Abstract

The effect of texture on enhancement and losses in photocurrent in a-Si solar cells is explored using PVOPTICS software and measurements on a-Si device structures. The texture angle has a major impact on light trapping and internal reflection. Increasing the angle causes better internal trapping in the i-layer, but also higher SnO2/a-Si reflection losses, as well as SnO2 and metal absorptionlosses. Parasitic absorption in the textured SnO2 due to back reflected light is 1-2 mA/cm2 for typical designs. N-i-p cells have a fundamental advantage over p-i-n cells since the textured TCO is at the rear of the device leading to lower losses.

Original language	American English
Number of pages	7
State	Published - 2002
Event	29th IEEE PV Specialists Conference - New Orleans, Louisiana Duration: 20 May 2002 → 24 May 2002

Conference

Conference	29th IEEE PV Specialists Conference
City	New Orleans, Louisiana
Period	20/05/02 → 24/05/02

Bibliographical note

Prepared for the 29th IEEE PV Specialists Conference, 20-24 May; 2002, New Orleans, Louisiana

NREL Publication Number

NREL/CP-520-31477

Keywords

a-Si solar cells
light trapping
optical analysis
parasitic absorption
photocurrent
photocurrent
PV
variable angle spectroscopic ellipsometry (vase)

Access to Document

https://www.nrel.gov/docs/fy02osti/31477.pdf

Cite this

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title = "Optical Design and Analysis of Textured a-Si Solar Cells: Preprint",

abstract = "The effect of texture on enhancement and losses in photocurrent in a-Si solar cells is explored using PVOPTICS software and measurements on a-Si device structures. The texture angle has a major impact on light trapping and internal reflection. Increasing the angle causes better internal trapping in the i-layer, but also higher SnO2/a-Si reflection losses, as well as SnO2 and metal absorptionlosses. Parasitic absorption in the textured SnO2 due to back reflected light is 1-2 mA/cm2 for typical designs. N-i-p cells have a fundamental advantage over p-i-n cells since the textured TCO is at the rear of the device leading to lower losses.",

keywords = "a-Si solar cells, light trapping, optical analysis, parasitic absorption, photocurrent, photocurrent, PV, variable angle spectroscopic ellipsometry (vase)",

author = "NREL",

note = "Prepared for the 29th IEEE PV Specialists Conference, 20-24 May; 2002, New Orleans, Louisiana; 29th IEEE PV Specialists Conference ; Conference date: 20-05-2002 Through 24-05-2002",

year = "2002",

language = "American English",

}

TY - CONF

T1 - Optical Design and Analysis of Textured a-Si Solar Cells: Preprint

AU - NREL, null

N1 - Prepared for the 29th IEEE PV Specialists Conference, 20-24 May; 2002, New Orleans, Louisiana

PY - 2002

Y1 - 2002

N2 - The effect of texture on enhancement and losses in photocurrent in a-Si solar cells is explored using PVOPTICS software and measurements on a-Si device structures. The texture angle has a major impact on light trapping and internal reflection. Increasing the angle causes better internal trapping in the i-layer, but also higher SnO2/a-Si reflection losses, as well as SnO2 and metal absorptionlosses. Parasitic absorption in the textured SnO2 due to back reflected light is 1-2 mA/cm2 for typical designs. N-i-p cells have a fundamental advantage over p-i-n cells since the textured TCO is at the rear of the device leading to lower losses.

AB - The effect of texture on enhancement and losses in photocurrent in a-Si solar cells is explored using PVOPTICS software and measurements on a-Si device structures. The texture angle has a major impact on light trapping and internal reflection. Increasing the angle causes better internal trapping in the i-layer, but also higher SnO2/a-Si reflection losses, as well as SnO2 and metal absorptionlosses. Parasitic absorption in the textured SnO2 due to back reflected light is 1-2 mA/cm2 for typical designs. N-i-p cells have a fundamental advantage over p-i-n cells since the textured TCO is at the rear of the device leading to lower losses.

KW - a-Si solar cells

KW - light trapping

KW - optical analysis

KW - parasitic absorption

KW - photocurrent

KW - PV

KW - variable angle spectroscopic ellipsometry (vase)

M3 - Paper

T2 - 29th IEEE PV Specialists Conference

Y2 - 20 May 2002 through 24 May 2002

ER -

Optical Design and Analysis of Textured a-Si Solar Cells: Preprint

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

Access to Document

Fingerprint

Cite this