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Research Output 1991 2019

1998

GaN epitaxial lateral overgrowth and optical characterization

Li, X., Bishop, S. G. & Coleman, J. J., Dec 1 1998, In : Applied Physics Letters. 73, 9, p. 1179-1181 3 p.

Research output: Contribution to journalArticle

cathodoluminescence
metalorganic chemical vapor deposition
atmospheric pressure
excitons
optical properties

Photoluminescence and photoluminescence excitation spectroscopy of multiple sites in Nd-implanted GaN

Kim, S., Rhee, S., Li, X., Coleman, J. & Bishop, S., Jan 1 1998, In : Physical Review B - Condensed Matter and Materials Physics. 57, 23, p. 14588-14591 4 p.

Research output: Contribution to journalArticle

Photoluminescence
Spectroscopy
photoluminescence
spectroscopy
excitation

The incorporation of arsenic in GaN by metalorganic chemical vapor deposition

Li, X., Kim, S., Reuter, E. E., Bishop, S. G. & Coleman, J. J., Dec 1 1998, In : Applied Physics Letters. 72, 16, p. 1990-1992 3 p.

Research output: Contribution to journalArticle

arsenic
metalorganic chemical vapor deposition
cathodoluminescence
luminescence
impurities
1997

Characteristics of GaN stripes grown by selective-area metalorganic chemical vapor deposition

Li, X., Jones, A. M., Roh, S. D., Turnbull, D. A., Bishop, S. G. & Coleman, J. J., Mar 1997, In : Journal of Electronic Materials. 26, 3, p. 306-310 5 p.

Research output: Contribution to journalArticle

Metallorganic chemical vapor deposition
metalorganic chemical vapor deposition
Cathodoluminescence
Aluminum Oxide
Substrates

Characterization of As-grown and ion-implanted GaN by photoluminescence and photoluminescence excitation spectroscopy

Kim, S., Rhee, S. J., Turnbull, D. A., Reuter, E. E., Li, X., Coleman, J. J. & Bishop, S. G., Jan 1 1997, In : LEOS Summer Topical Meeting. p. 52-53 2 p.

Research output: Contribution to journalConference article

Photoluminescence
Spectroscopy
photoluminescence
Ions
spectroscopy

Depth-resolved and excitation power dependent cathodoluminescence study of GaN films grown by metalorganic chemical vapor deposition

Li, X. & Coleman, J. J., Jan 27 1997, In : Applied Physics Letters. 70, 4, p. 438-440 3 p.

Research output: Contribution to journalArticle

cathodoluminescence
metalorganic chemical vapor deposition
luminescence
excitation
spectroscopy

Observation of multiple Er3+ sites in Er-implanted GaN by site-selective photoluminescence excitation spectroscopy

Kim, S., Rhee, S. J., Turnbull, D. A., Reuter, E. E., Li, X., Coleman, J. J. & Bishop, S. G., Jul 14 1997, In : Applied Physics Letters. 71, 2, p. 231-233 3 p.

Research output: Contribution to journalArticle

photoluminescence
spectroscopy
excitation
metalorganic chemical vapor deposition
optical absorption

On the incorporation of arsenic (As) in GaN films by conventional MOCVD

Li, X., Kim, S., Bishop, S. G. & Coleman, J. J., Jan 1 1997, In : LEOS Summer Topical Meeting. 1 p.

Research output: Contribution to journalConference article

Metallorganic chemical vapor deposition
Arsenic
arsenic
metalorganic chemical vapor deposition
Excitons

Photoluminescence quenching spectroscopy of trap-mediated Er3+ excitation mechanisms in Er-implanted GaN

Rhee, S. J., Kim, S., Li, X., Coleman, J. J. & Bishop, S. G., Dec 1 1997, In : Materials Research Society Symposium - Proceedings. 482, p. 667-672 6 p.

Research output: Contribution to journalConference article

Quenching
Photoluminescence
quenching
traps
Spectroscopy

Site-selective photoluminescence excitation and photoluminescence spectroscopy of Er-implanted wurtzite GaN

Kim, S., Rhee, S. J., Turnbull, D. A., Li, X., Coleman, J. J. & Bishop, S. G., Jan 1 1997, In : Materials Research Society Symposium - Proceedings. 468, p. 131-136 6 p.

Research output: Contribution to journalConference article

Photoluminescence spectroscopy
wurtzite
Photoluminescence
photoluminescence
spectroscopy

Surface photoabsorption monitoring of the growth of GaAs and InGaAs at 650°C by MOCVD

Kim, Y. D., Nakamura, F., Yoon, E., Forbes, D. V., Li, X. & Coleman, J. J., Oct 1997, In : Journal of Electronic Materials. 26, 10, p. 1164-1168 5 p.

Research output: Contribution to journalArticle

Metallorganic chemical vapor deposition
photoabsorption
Semiconductor quantum wells
metalorganic chemical vapor deposition
Photoluminescence

Trap-mediated excitation of Er 3+ photoluminescence in Er-implanted GaN

Kim, S., Rhee, S. J., Turnbull, D. A., Li, X., Coleman, J. J., Bishop, S. G. & Klein, P. B., Nov 3 1997, In : Applied Physics Letters. 71, 18, p. 2662-2664 3 p.

Research output: Contribution to journalArticle

traps
photoluminescence
excitation
pumping
quenching
1996

Alkylation of Si surfaces using a two-step halogenation/Grignard route

Bansal, A., Li, X., Lauermann, I., Lewis, N. S., Yi, S. I. & Weinberg, W. H., Jul 31 1996, In : Journal of the American Chemical Society. 118, 30, p. 7225-7226 2 p.

Research output: Contribution to journalArticle

Halogenation
Alkylation

Correlation of surface morphology and optical properties of GaN by conventional and selective-area MOCVD

Li, X., Jones, A. M., Roh, S. D., Turnbull, D. A., Reuter, E. E., Gu, S. Q., Bishop, S. G. & Coleman, J. J., Jan 1 1996, In : Materials Research Society Symposium - Proceedings. 395, p. 943-948 6 p.

Research output: Contribution to journalConference article

Metallorganic chemical vapor deposition
Epitaxial growth
epitaxy
metalorganic chemical vapor deposition
Surface morphology

Effect of e-beam irradiation on a p-n junction GaN light emitting diode

Li, X., Gu, S. Q., Reuter, E. E., Verdeyen, J. T., Bishop, S. G. & Coleman, J. J., Sep 1 1996, In : Journal of Applied Physics. 80, 5, p. 2687-2690 4 p.

Research output: Contribution to journalArticle

junction diodes
p-n junctions
electroluminescence
light emitting diodes
irradiation

Time-dependent study of low energy electron beam irradiation of Mg-doped GaN grown by metalorganic chemical vapor deposition

Li, X. & Coleman, J. J., Sep 9 1996, In : Applied Physics Letters. 69, 11, p. 1605-1607 3 p.

Research output: Contribution to journalArticle

metalorganic chemical vapor deposition
electron beams
irradiation
annealing
energy
1995

A new buffer layer for MOCVD growth of GaN on sapphire

Li, X., Forbes, D. V., Gu, S. Q., Turnbull, D. A., Bishop, S. G. & Coleman, J. J., Nov 1 1995, In : Journal of Electronic Materials. 24, 11, p. 1711-1714 4 p.

Research output: Contribution to journalArticle

Aluminum Oxide
Metallorganic chemical vapor deposition
Buffer layers
Sapphire
metalorganic chemical vapor deposition
1993

Ultraviolet absorption bands of [Csn+1In]+ (n<14) clusters

Li, X. & Whetten, R. L., Mar 1 1993, In : Zeitschrift für Physik D Atoms, Molecules and Clusters. 26, 1, p. 198-200 3 p.

Research output: Contribution to journalArticle

ultraviolet absorption
charge transfer
absorption spectra
alkali halides
optical spectrum

Ultraviolet absorption bands of ionic compound clusters: Onset of crystalline structures in [Csn+1In]+, n=1-13

Li, X. & Whetten, R. L., Jan 1 1993, In : The Journal of Chemical Physics. 98, 8, p. 6170-6175 6 p.

Research output: Contribution to journalArticle

ultraviolet absorption
Nanocrystals
Absorption spectra
Crystalline materials
absorption spectra
1992

Complete statistical thermodynamics of the cluster solid-liquid transition

Cheng, H. P., Li, X., Whetten, R. L. & Berry, R. S., Jan 1 1992, In : Physical Review A. 46, 2, p. 791-800 10 p.

Research output: Contribution to journalArticle

thermodynamics
liquids
Boltzmann distribution
histograms
distribution functions

Photon-stimulated ejection of atoms from alkali-halide nanocrystals

Li, X., Beck, R. D. & Whetten, R. L., Jan 1 1992, In : Physical review letters. 68, 23, p. 3420-3423 4 p.

Research output: Contribution to journalArticle

alkali halides
ejection
nanocrystals
photons
surface defects

Stability islands for doubly charged clusters below the kinetic critical size

Li, X. & Whetten, R. L., Aug 28 1992, In : Chemical Physics Letters. 196, 6, p. 535-540 6 p.

Research output: Contribution to journalArticle

Alkali halides
Photons
Irradiation
Kinetics
kinetics
1991

Nonbulk convergence of solvent spectral shifts in doped molecular clusters

Li, X., Hahn, M. Y., El-Shall, M. S. & Whetten, R. L., Jan 1 1991, In : Journal of physical chemistry. 95, 22, p. 8524-8528 5 p.

Research output: Contribution to journalArticle

molecular clusters
Molecules
shift
Benzene
liabilities

Spectroscopic signatures of structural aufbau in (benzene)n; n=7-19

Easter, D. C., Li, X. & Whetten, R. L., Jan 1 1991, In : The Journal of Chemical Physics. 95, 9, p. 6362-6370 9 p.

Research output: Contribution to journalArticle

Helium
Benzene
Ionization
Photons
benzene