Professional experience

2004 - Present       Professor of Physics and NEG Chair in Silicate and Materials Science, University of Toledo

2004 - Present       Adjunct Professor of Electrical Engineering, The Pennsylvania State University

1992 - 2004             Professor of Physics and Materials Research, The Pennsylvania State University

1988 - 1992             Associate Professor of Physics and Materials Research, The Pennsylvania State University

1982 - 1988             Senior Research Physicist, BP America/Standard Oil Co. (Ohio)

PROFESSIONAL AWARDS AND ACTIVITIES

1989-1995               National Science Foundation Presidential Young Investigator Award

1994                        Lead organizer for "Microcrystalline and Nanocrystalline Semiconductors",

                                      Symposium F of the 1994 Fall Meeting of the Materials Research Society.

1996                        Lead organizer for "Advances in Microcrystalline and Nanocrystalline Semiconductors", 

                                      Symposium F of the 1996 Fall Meeting of the Materials Research Society

1997                        Co-organizer for the 2nd International Conference on Spectroscopic Ellipsometry; 

                                      Lead editor of the conference proceedings "Spectroscopic Ellipsometry -- 1997"

1999-2001               Organizer or co-organizer for "Amorphous and Heterogeneous Silicon Thin Films",

                                      A sequence of three Symposia A of the Spring Meetings of the Materials Research Society

2005                        Co-organizer for "Amorphous and Nanocrystalline Silicon Science and Technology",

                                      Symposium A of the Spring Meeting of the Materials Research Society;

                                      Lead editor of: "Amorphous and Nanocrystalline Silicon Science and Technology -- 2005"

2005-2006               Chair of Area 5: "Amorphous, Nano/microcrystalline, and Thin Silicon Materials and Devices".

                                      of the "4th World Conference on Photovoltaics" held May 2006, Waikoloa, Hawaii

2005-2007               Co-organizer of the "22^nd International Conference on Amorphous and Nanocrystalline

                                      Semiconductors" to be held in August 2007, Breckenridge, Colorado.