Welcome

My work involves the investigation of the electronic properties of novel materials, such as oxide and nitride semiconductors, organic compounds and complex metal oxides.  Currently I employ a combination of soft x-ray spectroscopies, which include: x-ray photoemission spectroscopy (XPS); resonant X-ray emission spectroscopy (RXES); and, x-ray absorption spectroscopy (XAS) - NSLS X1B beamline endstation details

Research interests:

Recent publications - recent reseach hightlights
[28.] L. Colakerol, L. F. J. Piper, T. C. Chen, T. D. Moustakas and K. E. Smith.
Observation of an intrinsic inverted band strucutre near the surface of indium nitride using photoemission spectroscopy.
Europhys. Lett. (in press) June 2008.
[27.] A. Walsh, J. L. F. Da Silva, S.-H. Wei, C. Korber, A. Klein, L. F. J. Piper, A. DeMasi, K. E. Smith, G. Panaccione, P. Torelli, D. J. Payne, A. Bourlange, and R. G. Egdell.
Nature of the Band Gap of In2O3 Revealed by First-Principles Calculations
and X-Ray Spectroscopy
Phys. Rev. Lett. 100, 167402 (2008)
[26.] L. F. J. Piper, A. DeMasi, K. E. Smith, A. Schleife, F. Fuchs, F. Bechstedt, J. Zuniga-Perez,
and V. Munoz-Sanjose.
Electronic structure of single-crystal rocksalt CdO studied by soft x-ray spectroscopies and
ab-initio calculations
Phys. Rev. B 77, 125204 (
2008).
[25.] Y. Zhang, S. Wang, A. DeMasi, I. Reid, L. F. J. Piper, A.Y. Matsuura, J. E. Downes, and
K. E. Smith.
Soft X-ray Spectroscopic Study of the Electronic Structure of the Organic Semiconductor
Titanyl Phthalocyanine (TiO-Pc)
Journal of Materials Chemistry, 18, 1792 (2008)