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Title: Performance of Ultrathin Silicon Solar Microcells with Nanostructures of Relief Formed by Soft Imprint Lithography for Broad Band Absorption Enhancement

Abstract

Recently developed classes of monocrystalline silicon solar microcells can be assembled into modules with characteristics (i.e., mechanically flexible forms, compact concentrator designs, and high-voltage outputs) that would be impossible to achieve using conventional, wafer-based approaches. This paper presents experimental and computational studies of the optics of light absorption in ultrathin microcells that include nanoscale features of relief on their surfaces, formed by soft imprint lithography. Measurements on working devices with designs optimized for broad band trapping of incident light indicate good efficiencies in energy production even at thicknesses of just a few micrometers. These outcomes are relevant not only to the microcell technology described here but also to other photovoltaic systems that benefit from thin construction and efficient materials utilization.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC); Light-Material Interactions in Energy Conversion (LMI)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1064961
DOE Contract Number:  
SC0001293
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nano Lett.; Journal Volume: 10; Related Information: LMI partners with California Institute of Technology (lead); Harvard University; University of Illinois, Urbana-Champaign; Lawrence Berkeley National Laboratory
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; solar (photovoltaic), solid state lighting, phonons, thermal conductivity, electrodes - solar, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly)

Citation Formats

Shir, Daniel J., Yoon, Jongseung, Chanda, Debashis, Ryu, Jae-Ha, and Rogers, John A.. Performance of Ultrathin Silicon Solar Microcells with Nanostructures of Relief Formed by Soft Imprint Lithography for Broad Band Absorption Enhancement. United States: N. p., 2010. Web. doi:10.1021/nl101510q.
Shir, Daniel J., Yoon, Jongseung, Chanda, Debashis, Ryu, Jae-Ha, & Rogers, John A.. Performance of Ultrathin Silicon Solar Microcells with Nanostructures of Relief Formed by Soft Imprint Lithography for Broad Band Absorption Enhancement. United States. doi:10.1021/nl101510q.
Shir, Daniel J., Yoon, Jongseung, Chanda, Debashis, Ryu, Jae-Ha, and Rogers, John A.. Wed . "Performance of Ultrathin Silicon Solar Microcells with Nanostructures of Relief Formed by Soft Imprint Lithography for Broad Band Absorption Enhancement". United States. doi:10.1021/nl101510q.
@article{osti_1064961,
title = {Performance of Ultrathin Silicon Solar Microcells with Nanostructures of Relief Formed by Soft Imprint Lithography for Broad Band Absorption Enhancement},
author = {Shir, Daniel J. and Yoon, Jongseung and Chanda, Debashis and Ryu, Jae-Ha and Rogers, John A.},
abstractNote = {Recently developed classes of monocrystalline silicon solar microcells can be assembled into modules with characteristics (i.e., mechanically flexible forms, compact concentrator designs, and high-voltage outputs) that would be impossible to achieve using conventional, wafer-based approaches. This paper presents experimental and computational studies of the optics of light absorption in ultrathin microcells that include nanoscale features of relief on their surfaces, formed by soft imprint lithography. Measurements on working devices with designs optimized for broad band trapping of incident light indicate good efficiencies in energy production even at thicknesses of just a few micrometers. These outcomes are relevant not only to the microcell technology described here but also to other photovoltaic systems that benefit from thin construction and efficient materials utilization.},
doi = {10.1021/nl101510q},
journal = {Nano Lett.},
number = ,
volume = 10,
place = {United States},
year = {Wed Aug 11 00:00:00 EDT 2010},
month = {Wed Aug 11 00:00:00 EDT 2010}
}