Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs

Alfred J. Baca; Ki Jun Yu; Tyler A. Cain; Dae Hyeong Kim; Jongseung Yoon; Angus A. Rockett; Ralph G. Nuzzo; John A. Rogers

doi:10.1109/PVSC.2009.5411715

Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs

Alfred J. Baca, Ki Jun Yu, Tyler A. Cain, Dae Hyeong Kim, Jongseung Yoon, Angus A. Rockett, Ralph G. Nuzzo, John A. Rogers

Department of Electrical and Electronic Engineering

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

Abstract

We recently reported a strategy, in which modules consist of large-scale arrays of small, interconnected ultrathin (i.e. 1-20 μm) Si microcells (μ-cells) formed by anisotropic etching of bulk wafers and integrated with a soft printing technique. Here we report three new advances in this type of printed, μ-cell technology. First, we show that μ-cells formed with low purity, solar grade wafers (Dow Corning ® 101 SOG Si metal), can achieve efficiencies much higher than those possible with corresponding bulk cells formed with the same material. Second, we demonstrate high voltage mini-modules that incorporate these μ-cells and lead to high voltage outputs. Finally, we demonstrate the fabrication of mechanically stretchable solar cell modules which are non-coplanar (i.e. arch shaped). The results show that these materials and designs yield a stretchable layout that can undergo strains of up to 30 % without failure.

Original language	English
Title of host publication	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Pages	120-123
Number of pages	4
DOIs	https://doi.org/10.1109/PVSC.2009.5411715
Publication status	Published - 2009
Event	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 - Philadelphia, PA, United States Duration: 2009 Jun 7 → 2009 Jun 12

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)	0160-8371

Other

Other	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Country/Territory	United States
City	Philadelphia, PA
Period	09/6/7 → 09/6/12

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/PVSC.2009.5411715

Cite this

Baca, A. J., Yu, K. J., Cain, T. A., Kim, D. H., Yoon, J., Rockett, A. A., Nuzzo, R. G., & Rogers, J. A. (2009). Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs. In 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 (pp. 120-123). Article 5411715 (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2009.5411715

@inproceedings{31014feb0a5648e8a0b6b1c71ceedd9f,

title = "Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs",

abstract = "We recently reported a strategy, in which modules consist of large-scale arrays of small, interconnected ultrathin (i.e. 1-20 μm) Si microcells (μ-cells) formed by anisotropic etching of bulk wafers and integrated with a soft printing technique. Here we report three new advances in this type of printed, μ-cell technology. First, we show that μ-cells formed with low purity, solar grade wafers (Dow Corning {\textregistered} 101 SOG Si metal), can achieve efficiencies much higher than those possible with corresponding bulk cells formed with the same material. Second, we demonstrate high voltage mini-modules that incorporate these μ-cells and lead to high voltage outputs. Finally, we demonstrate the fabrication of mechanically stretchable solar cell modules which are non-coplanar (i.e. arch shaped). The results show that these materials and designs yield a stretchable layout that can undergo strains of up to 30 % without failure.",

author = "Baca, {Alfred J.} and Yu, {Ki Jun} and Cain, {Tyler A.} and Kim, {Dae Hyeong} and Jongseung Yoon and Rockett, {Angus A.} and Nuzzo, {Ralph G.} and Rogers, {John A.}",

year = "2009",

doi = "10.1109/PVSC.2009.5411715",

language = "English",

isbn = "9781424429509",

series = "Conference Record of the IEEE Photovoltaic Specialists Conference",

pages = "120--123",

booktitle = "2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009",

note = "2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 ; Conference date: 07-06-2009 Through 12-06-2009",

}

Baca, AJ, Yu, KJ, Cain, TA, Kim, DH, Yoon, J, Rockett, AA, Nuzzo, RG & Rogers, JA 2009, Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs. in 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009., 5411715, Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 120-123, 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, Philadelphia, PA, United States, 09/6/7. https://doi.org/10.1109/PVSC.2009.5411715

Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs. / Baca, Alfred J.; Yu, Ki Jun; Cain, Tyler A. et al.
2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009. 2009. p. 120-123 5411715 (Conference Record of the IEEE Photovoltaic Specialists Conference).

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

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AU - Baca, Alfred J.

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AU - Yoon, Jongseung

AU - Rockett, Angus A.

AU - Nuzzo, Ralph G.

AU - Rogers, John A.

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AB - We recently reported a strategy, in which modules consist of large-scale arrays of small, interconnected ultrathin (i.e. 1-20 μm) Si microcells (μ-cells) formed by anisotropic etching of bulk wafers and integrated with a soft printing technique. Here we report three new advances in this type of printed, μ-cell technology. First, we show that μ-cells formed with low purity, solar grade wafers (Dow Corning ® 101 SOG Si metal), can achieve efficiencies much higher than those possible with corresponding bulk cells formed with the same material. Second, we demonstrate high voltage mini-modules that incorporate these μ-cells and lead to high voltage outputs. Finally, we demonstrate the fabrication of mechanically stretchable solar cell modules which are non-coplanar (i.e. arch shaped). The results show that these materials and designs yield a stretchable layout that can undergo strains of up to 30 % without failure.

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Baca AJ, Yu KJ, Cain TA, Kim DH, Yoon J, Rockett AA et al. Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs. In 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009. 2009. p. 120-123. 5411715. (Conference Record of the IEEE Photovoltaic Specialists Conference). doi: 10.1109/PVSC.2009.5411715

Si solar microcells for modules with reduced purity requirements, high voltage outputs and mechanically stretchable designs

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