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Zinc Oxide Gives Green Shine to New Photoconductors
Northwestern University, News Center
by Megan Fellman
March 19, 2009

EVANSTON, Ill. --- Photodetectors -- devices found in cell phones, digital cameras and other consumer gadgets that utilize photoconducting materials -- are a green technology in performance (converting light into electricity), but the manufacture of very powerful photodetectors needs to be improved before they can qualify for solid green status.

Northwestern University researchers have designed a high-performing photoconducting material that uses zinc oxide -- an environmentally friendly inorganic compound found in baby powder and suntan lotion -- instead of lead sulfide. (Currently, the best performing photoconductor is based on lead sulfide nanoparticles.)

Features of the new hybrid material and its synthesis are detailed in a study published by the journal Nature Materials.

 

"A Synergistic Assembly of Nanoscale Lamellar Photoconductor Hybrids"

Sofos, M.
Goldberger, J.
Stone, D. A.
Allen, J. E.
Ma, Q.
Herman, D. J.
Tsai, W-W.
Lauhon, L. J.
Stupp, S. I.

Nature Materials
8(1)

(2009) 68-75.

 

Group Meetings

Saturday, Nov 21, 11:00 a.m., Cook 2058 - Jason Mantei, Christina Newcomb

Saturday, Dec 5, 11:00 a.m., Cook 2058 - Alok Tayi, Ronit Bitton

 

The Stupp Group 2008


The Stupp Laboratory
Cook Hall 1127
2220 Campus Drive
Evanston, IL 60208-3108

(847) 491-3002 phone
(847) 491-3010 facsimile

Samuel I. Stupp
Board of Trustees Professor of
Materials Science, Chemistry, & Medicine
Director, Institute for BioNanotechnology in Medicine

Sharon Jacknow
Research Administrator

Jill Wrubleski
Assistant
to Professor Stupp
Chicago Campus

Laura Fields
Assistant to Professor Stupp
Evanston Campus


Recently Published

“Tunable Mechanics of Peptide Nanofiber Gels”
Greenfield, M. A.; Hoffman, J. R.; de la Cruz, M. O.; Stupp, S. I. Langmuir (2009) DOI: 10.1021/la9030969

“Modulation of Prostate Cancer Cell Gene Expression by Cell-to-Cell Contact with Bone Marrow Stromal Cells or Osteoblasts”
Zhang, S.; Wang, J.; Bilen, M. A.; Lin, S-H.; Stupp, S. I.; Satcher, R. L.; Clin. Exp. Metastasis (2009) DOI: 10.1007/s10585-009-9289-0

“Dynamic In Vivo Biocompatibility of Angiogenic Peptide Amphiphile Nanofibers”
Ghanaati, S.; Webber, M. J.; Unger, R. E.; Orth, C.; Hulvat, J.; Kiehna, S. E.; Barbeek, M.; Rasic, A.; Stupp, S. I.; Kirkpatrick, C. J. Biomaterials, 30(31), (2009) 6202-6212.

“Buckled Membranes in Mixed-Valence Ionic Amphiphile Vesicles”
Greenfield, M. A.; Palmer, L. C.; Vernizzi, G.; de la Cruz, M. O.; Stupp, S. I. J. Am. Chem. Soc., 131(34), (2009)
12030-12031.

“Development of Bioactive Peptide Amphiphiles for Therapeutic Cell Delivery”
Webber, M. J.; Tongers, J.; Renault, M-A.; Roncalli, J. G.; Losordo, D. W.; Stupp, S. I. Acta Biomaterialia, (2009) DOI: 10.1016/j.actbio.2009.07.031

“Light-Triggered Bioactivity in Three Dimensions”
Muraoka, T.; Koh, C-Y.; Cui, H.; Stupp, S. I.; Angew. Chem. Int. Ed. 48(32), (2009) 5946-5949.

"Assembling P-Type Molecules on Single Wall Carbon Nanotubes for Photovoltaic Devices"
Klare, J. E.; Murray, I. P.; Goldberger, J.; Stupp, S. I.; Chemical Communications 25, (2009) 3705-3707.

"Understanding Factors Affecting Alignment of Self-Assembling Nanofibers Patterned by Sonication-Assisted Solution Embossing"
Hung, A. M.; Stupp, S. I.; Langmuir 25(12), (2009) 7084-7089.

"Self-Assembling Quinquethiophene-Oligopeptide Hydrogelators"
Stone, D. A.; Hsu, L.; Stupp, S. I.; Soft Matter 5, (2009) 1990-1993.

"Extracellular Matrix in Pancreatic Islets: Relevance to Scaffold Design and Transplantation"
Stendahl, J. C.; Kaufman, D. B.; Stupp, S. I.; Cell Transplantation 18(1), (2009) 1-12.


"Enzyme Directed Templating of Artificial Bone Mineral"
Spoerke, E. D.; Anthony, S. G.; Stupp, S. I.; Advanced Materials 21(4), (2009) 425-430.

"A Synergistic Assembly of Nanoscale Lamellar Photoconductor Hybrids"
Sofos, M.; Goldberger, J.; Stone, D. A.; Allen, J. E.; Ma, Q.; Herman, D. J.; Tsai, W-W.; Lauhon, L. J.; Stupp, S. I.; Nature Materials 8(1), (2009) 68-75.

“Micro-Patterning of Bioactive Self-Assembling Gels”
Mata, A.; Hsu, L.; Capito, R.; Aparicio, C.; Henrikson, K.; Stupp, S. I.; Soft Matter 5(6), (2009) 1228-1236.

“Self-Assembly of Giant Peptide Nanobelts”
Cui, H.; Muroaka,T.; Cheetham, A.; Stupp, S. I.; Nanoletters 9(3), (2009) 945-951.

 

 

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Northwestern University
Robert R. McCormick School of Engineering & Applied Science | Department of Materials Science & Engineering
Judd A. and Marjorie Weinberg College of Arts and Sciences | Department of Chemistry
Feinberg School of Medicine
| Institute for BioNanotechnology in Medicine
The Stupp Laboratory | Cook Hall 1127 | 2220 Campus Drive | Evanston, IL 60208 | U.S.A.
Phone: 847-491-3002 Fax: 847-491-3010
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