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ORGANIC–BASED PHOTOVOLTAICS

Organic–Based Photovoltaics: Toward Low–Cost Power
Generation, 10
S.E. Shaheen, D.S. Ginley, and G.E. Jabbour, Guest Editors
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The Photoconversion Mechanism of Excitonic Solar Cells, 20
B.A. Gregg
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Dye–Sensitized Solid–State Heterojunction Solar Cells, 23
M. Grätzel
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The Limits to Organic Photovoltaic Cell Efficiency, 28
S.R. Forrest
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Polymer–Fullerene Bulk Heterojunction Solar Cells, 33
R.A.J. Janssen, J.C. Hummelen, and N.S. Sariciftci
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Ordered Organic–Inorganic Bulk Heterojunction Photovoltaic Cells, 37
K.M. Coakley, Y. Liu, C. Goh, and M.D. McGehee
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Hybrid Organic–Nanocrystal Solar Cells, 41
D.J. Milliron, I.Gur, and A.P. Alivisatos
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Photoelectrochemical Cells Based on Inherently Conducting
Polymers, 46
G.G. Wallace, C.O. Too, D.L. Officer, and P.C. Dastoor
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Production Aspects of Organic Photovoltaics and Their Impact on the Commercialization of Devices, 50
C.J. Brabec, J.A. Hauch, P. Schilinsky, and C. Waldauf
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Multisociety Conference on Materials Science Held in Cancún in August 2004, 54

Eaglesham Leads MRS Board of Directors in 2005, 55
Cheng, Ginley, Uhrich, and Wehrspohn to Chair 2005 MRS Fall Meeting, 56
MRS Bulletin Volume Organizers Guide Technical Theme Topics for 2006, 57

Abstracts for February 2005 Journal of Materials Research

Letter from the President, 3
State of the Society, D.J. Eaglesham

Research/Researchers, 4

Science Policy, 8

Advertisers in This Issue, 40

Library, 60
Nanostructured Silicon-Based Powders and Composites, A.P. Legrand and C. Sénémaud, eds., reviewed by S. Stagg-Williams; A User's Guide to Vacuum Technology, 3rd ed., J.F. O'Hanlon, reviewed by D.P. Adams; Introduction to Phonons and Electrons, L.-F. Lou, reviewed by M. Dutta; Synthetic Methods in Step-Growth Polymers, M.E. Rogers and T.E. Long, eds., reviewed by J.S. Moore

Calendar, 65

Classified, 66

Posterminaries, 72
Regrettable Materials, P. Goodhew

Volume 30, No. 1
January 2005
Masthead

Full Articles of this issue are available online to MRS Members in Acrobat PDF format If you are not yet a Member, you can join now by filling out the Online Membership Application

ON THE COVER: Organic–Based Photovoltaics. The emerging field of organic and hybrid organic–inorganic solar cells aims to create low–cost photovoltaic devices for harvesting energy from sunlight. A multitude of device architectures have been investigated to date. These include (clockwise from top right) bulk heterojunction devices based on blends of a π-conjugated polymer, shown as poly(3-hexylthiophene), with an electron acceptor such as C₆₀ or semiconductor nanocrystals (CdTe tetrapods shown); solid–state dye–sensitized cells based on electron transfer from a dye into TiO₂; multilayer device structures, based on small–molecular–weight organic molecules, that mimic the multijunction designs of ultrahigh–efficiency inorganic devices; and nanostructured oxide polymer composites that are based on electron transfer from a p–conjugated polymer to a metal oxide semiconductor such as TiO₂ or ZnO. (Image rendering courtesy of Alfred Hicks, NREL. Molecular structure images created with GaussView 3.0 or PyMol.) See the technical theme that begins on p. 10.