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Records 1 to 49 of 49

1.  Alberi, K.; Mialitsin, A. V.; Fluegel, B.; Crooker, S. A.; Reno, J. L.; Mascarenhas, A. (2014). Magnetic Field-Induced Direct-Indirect Crossover in AlxGa1-xAs. Article No. 111201. Applied Physics Express. Vol. 7(11), November 2014; 4 pp.; NREL Report No. JA-5K00-62962. http://dx.doi.org/10.7567/APEX.7.111201

2.  Alberi, K.; Fluegel, B.; DiNezza, M. J.; Liu, S.; Zhang, Y. H.; Mascarenhas, A. (2014). Probing Carrier Lifetimes at Dislocations in Epitaxial CdTe. Article No. 065503. Applied Physics Express. Vol. 7(6), June 2014; 4 pp.; NREL Report No. JA-5K00-61826. http://dx.doi.org/10.7567/APEX.7.065503

3.  Alberi, K.; Fluegel, B.; Moutinho, H.; Dhere, R. G.; Li, J. V.; Mascarenhas, A. (2013). Measuring Long-Range Carrier Diffusion Across Multiple Grains in Polycrystalline Semiconductors by Photoluminescence Imaging. Article No. 2699. Nature Communications. Vol. 4, October 2013; 7 pp.; NREL Report No. JA-5900-60813. http://dx.doi.org/10.1038/ncomms3699

4.  Alberi, K.; Crooker, S. A.; Fluegel, B.; Beaton, D. A.; Ptak, A. J.; Mascarenhas, A. (2013). Magnetic-Field-Induced Delocalized to Localized Transformation in GaAs:N. Article No. 156405. Physical Review Letters. Vol. 110(15), 12 April 2013; 5 pp.; NREL Report No. JA-5900-58291. http://dx.doi.org/10.1103/PhysRevLett.110.156405

5.  Schultes, F. J.; Christian, T.; Jones-Albertus, R.; Pickett, E.; Alberi, K.; Fluegel, B.; Liu, T.; Misra, P.; Sukiasyan, A.; Yuen, H.; Haegel, N. M. (2013). Temperature Dependence of Diffusion Length, Lifetime and Minority Electron Mobility in GaInP. Article No. 242106. Applied Physics Letters. Vol. 103(24), 9 December 2013; 4 pp.; NREL Report No. JA-5900-61234. http://dx.doi.org/10.1063/1.4847635

6.  Beaton, D. A.; Alberi, K.; Fluegel, B.; Mascarenhas, A.; Reno, J. L. (2013). Precise Determination of the Direct-Indirect Band Gap Energy Crossover Composition in AlxGa1-xAs. Article No. 071201. Applied Physics Express. Vol. 6(7), July 2013; 4 pp.; NREL Report No. JA-5900-58737. http://dx.doi.org/10.7567/APEX.6.071201

7.  Mialitsin, A.; Fluegel, B.; Ptak, A.; Mascarenhas, A. (2012). Mechanism of Asymmetric Lineshape Broadening in GaAs1-xNx Raman Spectra. Article No. 045209. Physical Review. B, Condensed Matter and Materials Physics. Vol. 86(4), 15 July 2012; 7 pp.; NREL Report No. JA-5900-56360. http://dx.doi.org/10.1103/PhysRevB.86.045209

8.  Mialitsin, A.; Schmult, S.; Solov'yov, I. A.; Fluegel, B.; Mascarenhas, A. (2012). Eigenstate Localization in an Asymmetric Coupled Quantum Well Pair. Superlattices and Microstructures. Vol. 51(6), June 2012; pp. 834-841; NREL Report No. JA-5900-53308. http://dx.doi.org/10.1016/j.spmi.2012.03.019

9.  Alberi, K.; Fluegel, B.; Beaton, D. A.; Ptak, A. J.; Mascarenhas, A. (2012). Localization-Delocalization Transition of Electrons at the Percolation Threshold of Semiconductor GaAs1-xNx Alloys: The Appearance of a Mobility Edge. Article No. 041201(R). Physical Review. B, Condensed Matter and Materials Physics. Vol. 86(4), 15 July 2012; 4 pp.; NREL Report No. JA-5900-55732. http://dx.doi.org/10.1103/PhysRevB.86.041201

10.  Fluegel, B.; Alberi, K.; Beaton, D. A.; Crooker, S. A.; Ptak, A. J.; Mascarenhas, A. (2012). Evolution of Superclusters and Delocalized States in GaAs1-xNx. Article No. 205203. Physical Review. B, Condensed Matter and Materials Physics. Vol. 86(20), 15 November 2012; 6 pp.; NREL Report No. JA-5900-56970. http://dx.doi.org/10.1103/PhysRevB.86.205203

11.  Alberi, K.; Fluegel, B.; Steiner, M. A.; France, R.; Olavarria, W.; Mascarenhas, A. (2011). Direct-Indirect Crossover in GaxIn1-xP Alloys. Article No. 113701. Journal of Applied Physics. Vol. 110(11), 1 December 2011; 5 pp.; NREL Report No. JA-5900-52313. http://dx.doi.org/10.1063/1.3663439

12.  Kini, R. N.; Ptak, A. J.; Fluegel, B.; France, R.; Reedy, R. C.; Mascarenhas, A. (2011). Effect of Bi Alloying on the Hole Transport in the Dilute Bismide Alloy GaAs1-xBix. Article No. 075307. Physical Review. B, Condensed Matter and Materials Physics. 6 pp.; NREL Report No. JA-5900-50490. http://dx.doi.org/10.1103/PhysRevB.83.075307

13.  Fluegel, B.; Alberi, K.; Bhusal, L.; Mascarenhas, A.; Snoke, D. W.; Karunasiri, G.; Pfeiffer, L. N.; West, K. (2011). Exciton Pattern Generation in GaAs/Al/x/Ga/1-x/As Multiple Quantum Wells. Article No. 195320. Physical Review. B, Condensed Matter and Materials Physics. Vol. 83(19), 15 May 2011; 6 pp.; NREL Report No. JA-5900-50361. http://dx.doi.org/10.1103/PhysRevB.83.195320

14.  Fluegel, B.; Kini, R. N.; Ptak, A. J.; Beaton, D.; Alberi, K.; Mascarenhas, A. (2011). Shubnikov-de Haas Measurement of Electron Effective Mass in GaAs1-xBix. Article No. 162108. Applied Physics Letters. Vol. 99(16), 17 October 2011; 4 pp.; NREL Report No. JA-5900-52605. http://dx.doi.org/10.1063/1.3655198

15.  Bhusal, L.; Fluegel, B.; Steiner, M. A.; Mascarenhas, A. J. (2009). Ordering Induced Direct-Indirect Transformation in Unstrained GaxIn1−xP for 0.76<=x<=0.78. Journal of Applied Physics. Vol. 106(11), December 1, 2009; 3 pp.; NREL Report No. JA-590-46658. http://dx.doi.org/10.1063/1.3266175

16.  Fluegel, B.; Mascarenhas, A.; Geisz, J. F. (2009). Polarized Photoluminescence from Point Emitters in Ordered GaxIn1-xP. Article No. 125333. Physical Review. B, Condensed Matter and Materials Physics. Vol. 80(12), 2009; 4 pp.; NREL Report No. JA-590-45869. http://dx.doi.org/10.1103/PhysRevB.80.125333

17.  Dhere, R.; Fluegel, B.; Mascarenhas, A.; Duenow, J.; Gessert, T. (2009). Investigation of Effects of Processing and Impurities on the Properties of CdTe Using Microscopic Two-Dimensional Photoluminescence Imaging Technique. [Proceedings] 34th IEEE Photovoltaic Specialists Conference (PVSC '09), 7-12 June 2009, Philadelphia, Pennsylvania. Piscataway, NJ: Institute of Electrical and Electronics Engineers, Inc. (IEEE) pp. 001443-001447; NREL Report No. CP-520-46062. http://dx.doi.org/10.1109/PVSC.2009.5411317

18.  Fluegel, B.; Mascarenhas, A. (2008). Aberration-Free Imaging for Light and Electrons. Article No. 161105. Applied Physics Letters. Vol. 93(16), 2008; 3 pp.; NREL Report No. JA-590-43922. http://dx.doi.org/10.1063/1.3005582

19.  Fluegel, B.; Mascarenhas, A.; Ptak, A. J.; Tixier, S.; Young, E. C.; Tiedje, T. (2007). E+ Transition in GaAs1-xNx and GaAs1-xBix Due to Isoelectronic-Impurity-Induced Perturbation of the Conduction Band. Article No. 155209. Physical Review. B, Condensed Matter and Materials Physics. Vol. 76(15), 2007; 5 pp.; NREL Report No. JA-590-41037. http://dx.doi.org/10.1103/PhysRevB.76.155209;

20.  Yoon, S.; Seong, M. J.; Fluegel, B.; Mascarenhas, A.; Tixier, S.; Tiedje, T. (2007). Photogenerated Plasmons in GaAs1-xBix. Article No. 082101. Applied Physics Letters. Vol. 91(8), 2007; 3 pp.; NREL Report No. JA-590-41667. http://dx.doi.org/10.1063/1.2770760

21.  Fluegel, B.; Francoeur, S.; Mascarenhas, A.; Tixier, S.; Young, E. C.; Tiedje, T. (2006). Giant Spin-Orbit Bowing in GaAs1-xBix. Article No. 067205. Physical Review Letters. Vol. 97(6), 2006; 4 pp.; NREL Report No. JA-590-40705. http://dx.doi.org/10.1103/PhysRevLett.97.067205

22.  Zhang, Y.; Dalpian, G. M.; Fluegel, B.; Wei, S. H.; Mascarenhas, A.; Huang, X. Y.; Li, J.; Wang, L. W. (2006). Novel Approach to Tuning the Physical Properties of Organic-Inorganic Hybrid Semiconductors. Article No. 026405. Physical Review Letters. Vol. 96(2), 20 January 2006; 4 pp.; NREL Report No. JA-590-39659. http://dx.doi.org/10.1103/PhysRevLett.96.026405

23.  Fluegel, B.; Zhang, Y.; Geisz, J. F.; Mascarenhas, A. (2005). Comment on 'Experimental Evidence for N-Induced Strong Coupling of Host Conduction Band States in GaNxP1-x: Insight into the Dominant Mechanism for Giant Band-Gap Bowing'. Article No. 197301. Physical Review. B, Condensed Matter and Materials Physics. Vol. 72(19), 2005; 3 pp.; NREL Report No. JA-590-39633. http://dx.doi.org/10.1103/PhysRevB.72.197301

24.  Fluegel, B.; Zhang, Y.; Geisz, J. F.; Mascarenhas, A. (2005). Confirmation of the Impurity-Band Model for GaP1-xNx. Article No. 073203. Physical Review. B, Condensed Matter and Materials Physics. Vol. 72(7), 2005; 4 pp.; NREL Report No. JA-590-39369. http://dx.doi.org/10.1103/PhysRevB.72.073203


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25.  Mascarenhas, A.; Francoeur, S.; Seong, M. J.; Fluegel, B.; Zhang, Y.; Wanlass, M. W. (2005). High-Efficiency Solar Cell Concepts: Physics, Materials, and Devices. 5 pp.; NREL Report No. CP-590-37079.


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26.  Fluegel, B.; Zhang, Y.; Geisz, J. F.; Mascarenhas, A. (2005). Impurity-Band Model for GaP1-xNx. 5 pp.; NREL Report No. CP-590-39020.

27.  Fluegel, B.; Zhang, Y.; Mascarenhas, A. (2004). Electronic Properties of Hybrid Organic-Inorganic Semiconductors. Article No. 205308. Physical Review B: Condensed Matter and Materials Physics. Vol. 70(20), 2004; 5 pp.; NREL Report No. JA-590-36670. http://dx.doi.org/10.1103/PhysRevB.70.205308

28.  Zhang, Y.; Fluegel, B.; Hanna, M. C.; Mascarenhas, A.; Wang, L. -W.; Wang, Y. J.; Wei, X. (2003). Impurity Perturbation to the Host Band Structure and Recoil of the Impurity State. Article No. 075210. Physical Review. B, Condensed Matter and Materials Physics. Vol. 68(07), 2003; 4 pp.; NREL Report No. JA-590-34812. http://dx.doi.org/10.1103/PhysRevB.68.075210

29.  Zhang, Y.; Fluegel, B.; Hanna, M. C.; Geisz, J. F.; Wang, L.-W.; Mascarenhas, A. (2003). Effects of Heavy Nitrogen Doping in III--V Semiconductors--How Well Does the Conventional Wisdom Hold for the Dilute Nitrogen "III--V-N Alloys?". Physica Status Solidi B - Basic Research. Vol. 240(2), 2003; pp. 396-403; NREL Report No. JA-590-34811. http://dx.doi.org/10.1002/pssb.200303329

30.  Zhang, Y.; Fluegel, B.; Mascarenhas, A. (2003). Total Negative Refraction in Real Crystals for Ballistic Electrons and Light. Article No. 157404. Physical Review Letters. Vol. 91(15), 2003; 4 pp.; NREL Report No. JA-590-34776. http://dx.doi.org/10.1103/PhysRevLett.91.157404

31.  Zhang, Y.; Fluegel, B.; Hanna, M.; Duda, A.; Mascarenhas, A. (2002). Electronic Structure Near the Band Gap of Heavily Nitrogen Doped GaAs and GaP. Jones, E. D., ed. Progress in Semiconductor Materials for Optoelectronic Applications: Proceedings of the Materials Research Society Symposium, 26-29 November 2001, Boston, Massachusetts. Materials Research Society Symposium Proceedings, Vol. 692. Warrendale, PA: Materials Research Society pp. 49-60; NREL Report No. CP-590-33419.

32.  Fluegel, B.; Smith, S.; Zhang, Y.; Mascarenhas, A.; Geisz, J. F.; Olson, J. M. (2002). Resonant Excitation Study of Ultrasharp Emission Lines in Ordered GaxIn1-xP. Article No. 115320. Physical Review. B, Condensed Matter and Materials Physics. Vol. 65(11), 2002; 5 pp.; NREL Report No. JA-520-30918. http://dx.doi.org/10.1103/PhysRevB.65.115320

33.  Zhang, Y.; Fluegel, B.; Ahrenkiel, S. P.; Friedman, D. J.; Geisz, J. F.; Olson, J. M.; Mascarenhas, A. (2000). Electronic and Optical Properties of Orientational Superlattices in GaInP Alloys. Mascarenhas, A., et al., eds. Self-Organized Processes in Semiconductor Alloys: Proceedings of the Materials Research Society Symposium, 29 November - 2 December 1999, Boston, Massachusetts. Materials Research Society Symposium Proceedings, Vol. 583. Warrendale, PA: Materials Research Society pp. 255-260; NREL Report No. CP-590-29976.

34.  Zhang, Y.; Fluegel, B.; Mascarenhas, A.; Xin, H. P.; Tu, C. W. (2000). Optical Transitions in the Isoelectronically Doped Semiconductor GaP:N: An Evolution from Isolated Centers, Pairs, and Clusters to an Impurity Band. Physical Review. B, Condensed Matter. Vol. 62(7), 15 August 2000-I; pp. 4493-4500; NREL Report No. JA-590-29078. http://dx.doi.org/10.1103/PhysRevB.62.4493

35.  Smith, S.; Cheong, H. M.; Fluegel, B. D.; Geisz, J. F.; Olson, J. M.; Dhere, R.; Kazmerski, L. L.; Mascarenhas, A (1999). Excitons and Recombination in Photovoltaic Materials. Al-Jassim, M.; Thornton, J. P.; Gee, J. M., eds. NCPV Photovoltaics Program Review: Proceedings of the 15th Conference, 9-11 September 1998, Denver, Colorado. AIP Conference Proceedings 462. Woodbury, NY: American Institute of Physics pp. 467-472; NREL Report No. 27421.

36.  Smith, S.; Cheong, H. M.; Fluegel, B. D.; Geisz, J. F.; Olson, J. M.; Kazmerski, L. L.; Mascarenhas, A. (1999). Spatially Resolved Photoluminescence in Partially Ordered GaInP2. Applied Physics Letters. Vol. 74(5), 1 February 1999; pp. 706-708; NREL Report No. 26078. http://dx.doi.org/10.1063/1.123189

37.  Fluegel, B.; Zhang, Y.; Mascarenhas, A.; Geisz, J. F.; Olson, J. M.; Duda, A. (1999). Crystal Anisotropy and Spin-Polarized Photoluminescence of Ordered GaxIn1-xP. Physical Review. B, Condensed Matter. Vol. 60(16), 15 October 1999; pp. R11,261 - R11,264; NREL Report No. 27888. http://dx.doi.org/10.1103/PhysRevB.60.R11261

38.  Giessen, H.; Butty, J.; Woggon, U.; Fluegel, B.; Mohs, G.; Hu, Y. Z.; Koch, S. W.; Peyghambarian, N. (1999). Ultrafast Nonlinear Gain Dynamics in Semiconductor Nanocrystals. Phase Transitions. Vol. 68, 1999; pp. 59-94; NREL Report No. 27803. http://dx.doi.org/10.1080/01411599908224515

39.  Fluegel, B.; Mascarenhas, A.; Geisz, J. F.; Olson, J. M. (1998). Second Harmonic Generation in Ordered Ga1-xInxP. Physical Review. B, Condensed Matter. Vol. 57(12), 15 March 1998-II; pp. R6787-R6790; NREL Report No. 25642. http://dx.doi.org/10.1103/PhysRevB.57.R6787


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40.  Smith, S.; Cheong, H. M.; Fluegel, B. D.; Geisz, J. F.; Olson, J. V.; Dhere, R.; Kazmerski, L. L.; Mascarenhas, A. (1998). Excitons and Recombination in Photovoltaic Materials. 8 pp.; NREL Report No. CP-590-25693.

41.  Cheong, H. M.; Fluegel, B.; Hanna, M. C.; Mascarenhas, A. (1998). Photoluminescence Up-Conversion in GaAs/AlxGa1-xAs Heterostructures. Physical Review. B, Condensed Matter. Vol. 58(8), 15 August 1998-II; pp. R4254-R4257; NREL Report No. 26054. http://dx.doi.org/10.1103/PhysRevB.58.R4254

42.  Fluegel, B.; Zhang, Y.; Cheong, H. M.; Mascarenhas, A.; Geisz, J. F.; Olson, J. M.; Duda, A. (1997). Exciton Absorption Bleaching Studies in Ordered GaxIn1-xP. Physical Review. B, Condensed Matter. Vol. 55(20), 15 May 1997-II; pp. 13,647-13,650; NREL Report No. 24288. http://dx.doi.org/10.1103/PhysRevB.55.13647

43.  Mascarenhas, A.; Fluegel, B.; Zhang, Y.; Geisz, J. F.; Olson, J. M. (1997). Carrier Relaxation and Exciton Bleaching in Spontaneously Ordered GaInP. Physica Status Solidi A. Vol. 164(1), 1997; pp. 477-480; NREL Report No. 24278. http://dx.doi.org/10.1002/1521-396X(199711)164:1<477::AID-PSSA477>3.0.CO;2-5

44.  Ellingson, R.; Sprague, J.; Fluegel, B.; Zaban, A.; Ferrere, S.; Nozik, A. J. (1997). Femtosecond Dynamics of Electron Injection from Ru-Based Dyes into Nanocrystalline TiO2 Electrodes. Proceedings of the Twenty-First DOE Solar Photochemistry Research Conference, 7-11 June 1997, Copper Mountain, Colorado. NREL/CP-520-22968. p. 110; NREL Report No. 24361.

45.  Zhang, Y.; Fluegel, B.; Mascarenhas, A.; Geisz, J. F.; Olson, J. M.; Alsina, F.; Duda, A. (1997). Low-Temperature Birefringence in Ordered GaInP Alloy Studied by Polarized Transmission Spectroscopy. Solid State Communications. Vol. 104(10), 1997; pp. 557-580; NREL Report No. 24508.

46.  Giessen, H.; Fluegel, B.; Mohs, G.; Peyghambarian, N.; Sprague, J. R.; Micic, O. I.; Nozik, A. J. (1996). Observation of the Quantum Confined Ground State in InP Quantum Dots at 300 K. Applied Physics Letters. Vol. 68(3), 15 January 1996; pp. 304-306; NREL Report No. 21022. http://dx.doi.org/10.1063/1.116067

47.  Levi, D. H.; Fluegel, B. D.; Ahrenkiel, R. K.; Compaan, A. D.; Woods, L. M. (1996). Dynamics of Photoexcited Carrier Relaxation and Recombination in CdTe/CdS Thin Films. Gwinner, D., ed. NREL Preprints for the Photovoltaic Specialists Conference of IEEE Twenty-Five, 13-17 May 1996, Washington, DC. NREL/TP-410-21091. Golden, CO: National Renewable Energy Laboratory p. 69; NREL Report No. 20466.

48.  Levi, D. H.; Fluegel, B. D.; Ahrenkiel, R. K.; Compaan, A. D.; Woods, L. M. (1996). Dynamics of Photoexcited Carrier Relaxation and Recombination in CdTe/CdS Thin Films. Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference, 13-17 May 1996, Washington, DC. New York: Institute of Electrical and Electronics Engineers pp. 913-919; NREL Report No. 22422.

49.  Micic, O. I.; Sprague, J. R.; Curtis, C. J.; Jones, K. M.; Machol, J. L.; Nozik, A. J.; Giessen, H.; Fluegel, B.; Mohs, G.; Peyghambarian, N. (1995). Synthesis and Characterization of InP, GaP, and GaInP2 Quantum Dots. Journal of Physical Chemistry. Vol. 99(19), 1995; pp. 7754-7759; NREL Report No. TP-453-7495. http://dx.doi.org/10.1021/j100019a063



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