Progress in Triple-Junction Amorphous Silicon Alloy Solar Cells with Improved Current Mismatch in Component Cells

doi:10.1109/PVSC.1996.564308

Progress in Triple-Junction Amorphous Silicon Alloy Solar Cells with Improved Current Mismatch in Component Cells

Research output: Contribution to conference › Paper

Abstract

We have achieved a new world record stable efficiency of 11.8% for amorphous silicon alloy solar cells using a spectrum-splitting, triple-junction structure. In addition to our previously reported key factors leading to high performance multijunction solar cells, we have improved the current matching among the component cells. We have designed the triple structure such that the top cell, whichusually exhibits the highest fill factor, remains to be the current-limit cell in the degraded state. One critical requirement for achieving the desired current matching without sacrificing the triple cell current is to obtain a high quality narrow bandgap bottom cell capable of reproducing sufficient red current. Details on this narrow bandgap amorphous silicon germanium alloy cell as well asstability data on the triple-junction cell are presented.

Original language	American English
Pages	1041-1044
Number of pages	4
DOIs	https://doi.org/10.1109/PVSC.1996.564308
State	Published - 1996
Event	Twenty Fifth IEEE Photovoltaic Specialists Conference - Washington, D.C. Duration: 13 May 1996 → 17 May 1996

Conference

Conference	Twenty Fifth IEEE Photovoltaic Specialists Conference
City	Washington, D.C.
Period	13/05/96 → 17/05/96

Bibliographical note

Work performed by United Solar Systems Corp., Troy, Michigan

NREL Publication Number

NREL/CP-22504

Access to Document

10.1109/PVSC.1996.564308

Cite this

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title = "Progress in Triple-Junction Amorphous Silicon Alloy Solar Cells with Improved Current Mismatch in Component Cells",

abstract = "We have achieved a new world record stable efficiency of 11.8% for amorphous silicon alloy solar cells using a spectrum-splitting, triple-junction structure. In addition to our previously reported key factors leading to high performance multijunction solar cells, we have improved the current matching among the component cells. We have designed the triple structure such that the top cell, whichusually exhibits the highest fill factor, remains to be the current-limit cell in the degraded state. One critical requirement for achieving the desired current matching without sacrificing the triple cell current is to obtain a high quality narrow bandgap bottom cell capable of reproducing sufficient red current. Details on this narrow bandgap amorphous silicon germanium alloy cell as well asstability data on the triple-junction cell are presented.",

author = "NREL",

note = "Work performed by United Solar Systems Corp., Troy, Michigan; Twenty Fifth IEEE Photovoltaic Specialists Conference ; Conference date: 13-05-1996 Through 17-05-1996",

year = "1996",

doi = "10.1109/PVSC.1996.564308",

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pages = "1041--1044",

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AU - NREL, null

N1 - Work performed by United Solar Systems Corp., Troy, Michigan

PY - 1996

Y1 - 1996

N2 - We have achieved a new world record stable efficiency of 11.8% for amorphous silicon alloy solar cells using a spectrum-splitting, triple-junction structure. In addition to our previously reported key factors leading to high performance multijunction solar cells, we have improved the current matching among the component cells. We have designed the triple structure such that the top cell, whichusually exhibits the highest fill factor, remains to be the current-limit cell in the degraded state. One critical requirement for achieving the desired current matching without sacrificing the triple cell current is to obtain a high quality narrow bandgap bottom cell capable of reproducing sufficient red current. Details on this narrow bandgap amorphous silicon germanium alloy cell as well asstability data on the triple-junction cell are presented.

AB - We have achieved a new world record stable efficiency of 11.8% for amorphous silicon alloy solar cells using a spectrum-splitting, triple-junction structure. In addition to our previously reported key factors leading to high performance multijunction solar cells, we have improved the current matching among the component cells. We have designed the triple structure such that the top cell, whichusually exhibits the highest fill factor, remains to be the current-limit cell in the degraded state. One critical requirement for achieving the desired current matching without sacrificing the triple cell current is to obtain a high quality narrow bandgap bottom cell capable of reproducing sufficient red current. Details on this narrow bandgap amorphous silicon germanium alloy cell as well asstability data on the triple-junction cell are presented.

U2 - 10.1109/PVSC.1996.564308

DO - 10.1109/PVSC.1996.564308

M3 - Paper

SP - 1041

EP - 1044

T2 - Twenty Fifth IEEE Photovoltaic Specialists Conference

Y2 - 13 May 1996 through 17 May 1996

ER -

Progress in Triple-Junction Amorphous Silicon Alloy Solar Cells with Improved Current Mismatch in Component Cells

Abstract

Conference

Bibliographical note

NREL Publication Number

Access to Document

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Cite this