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Journal Publications

 

Pavan Kasanaboina, Manish Sharma, Prithviraj Deshmukh, C.L. Reynolds Jr., Yang Liu, Shanthi Iyer, “Effects of Annealing on GaAs/GaAsSbN/GaAs Core-Multi Shell Nanowires”, Nanoscale Research Letters 11(1), 1-6 (2016) DOI: 10.1186/s11671-016-1265-4.


Pavan Kumar Kasanaboina, Sai Krishna Ojha, Shifat Us Sami, Lewis Reynolds, Yang Liu and Shanthi Iyer, "Effect of Growth Parameters and Substrate Surface Preparation for High Density Vertical GaAs/GaAsSb Core-shell Nanowires with Photoluminescence Emission at 1.3 µm", Journal of Electronic Materials, 45(4) 2108-2114 (2016) (DOI: 10.1007/s11664-015-4316-1).


Sai Krishna Ojha, Pavan Kumar Kasanaboina, C Lewis Reynolds.Jr, Thomas A Rawdanowicz, Yang Liu, Ryan M White and Shanthi Iyer, “ Incorporation of Be Dopant in GaAs Core and Core-Shell Nanowires by Molecular Beam Epitaxy”, Journal of Vacuum Science & Technology B 34(2), 02L114-1 (2016).


Pavan Kumar Kasanaboina, Estiak Ahmad, Jia Li, Lewis Reynolds, Yang Liu and Shanthi Iyer, “Self Catalyzed Growth of Dilute Nitride GaAs/GaAsSbN/GaAs Core-Shell Nanowires by Molecular Beam Epitaxy”, Applied Physics Letters 107, 103111 (2015).

Pavan Kumar Kasanaboina, Sai Krishna Ojha, Shifat Us Sami, C. Lewis Reynolds Jr., Yang Liu and Shanthi Iyer, “Bandgap Tuning of GaAs/GaAsSb Core-Shell Nanowires Grown by Molecular Beam Epitaxy”, Semiconductor Science and Technology, 30, 105036 (2015).

“A Study of Ga Assisted Growth of GaAs/GaAsSb Axial Nanowires by Molecular Beam Epitaxy”, Shanthi Iyer, L. Reynolds, T.Rawdanowicz, Sai Krishna Ojha, Pavan Kumar Kasanaboina and Adam Bowen, Book Chapter in Advances in Nanosciences and Nanoengineering, Ajit D. Kelkar, Dan Herr and James G. Ryan. , CRC Press.: Boca Raton FL, ISBN 978-1-4822-3119-9, 2013, pages 31-49.

1.     

Refereed Proceedings

 

Pavan Kumar Kasanaboina, Sai Krishna Ojha, Shifat U. Sami, Lewis Reynolds, Yang Liu and Shanthi Iyer,“Tailoring of GaAs/GaAsSb core-shell structured nanowires for IR photodetector applications”, presented at SPIE Photonics West Conference-2015, San Francisco, CA, Feb.9, 2015. Proc. SPIE 9373, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling XII, 937307 (February 27, 2015); doi:10.1117/12.2080572.

 

Non‑refereed Publications and Presentations

 

Pavan Kumar Kasanaboina, Estiak Ahmad, Jia Li, Lewis Reynolds, Yang Liu  and Shanthi Iyer, “1.3 μm Emission from Dilute Nitride GaAs/ GaAsSbN/GaAs Core-Multishell Nanowires grown by Molecular Beam Epitaxy”, Mater. Res. Society Fall Meeting, Boston, MA, Dec. 1st, 2015.
 
Shanthi Iyer, “Nanowires for Single Photon Detection and Solar Cells”,  NC SBTDC’s SBIR/STTR Symposium, Cary, NC, Nov. 18, 2015, Poster Presentation.
 
Pavan Kumar Kasanaboina, Jia Li, C.L. Reynolds Jr., Yang Liu  and Shanthi Iyer, “Growth and Characterization of Dilute Nitride GaAs/ GaAsSbN/GaAs Core-Multishell Nanowires for Photodetector Applications”, MRS/ASM/AVS Meeting 2015,Raleigh,NC, Oral presentation, Nov 13, 2015.
 
Manish Sharma, Pavan K. Kasanaboina, Prithviraj Deshmukh and Shanthi Iyer, “Enhancement in photoluminescence intensity with nitride surface passivation of GaAs/GaAsSb core-shell nanowires ”, MRS/ASM/AVS Meeting 2015,Raleigh,NC, Poster presentation, Nov 13,2015.

Estiak Ahmad, P. K. Kasanaboina, M Sharma, P Deshmukh, Jia Li, and Shanthi Iyer , “MBE Grown Te Doped GaAsSb and p-i-n Nanowires”,MRS/ASM/AVS Meeting 2015,Raleigh,NC, Poster presentation, Nov 13, 2015.
 
P. Deshmukh, P. Kasanaboina and S. Iyer, “Effects of Annealing on GaAs/GaAsSbN/GaAs Core/Multi-Shell Nanowires”, MRS/ASM/AVS Joint Symposium Meeting 2015,Raleigh,NC, Poster presentation, Nov 13, 2015.
 
S.K. Ojha, P.K. Kasanaboina, L. Reynolds, Y. Liu and S. Iyer, " Effects of Sb Variation in GaAsSb Segments in Ga Assisted Axial GaAs/GaAsSb/GaAs Heterostructure Nanowires ", NAMBE 2015, poster presentation, Mayan Riviera, Mexico (Oct 4-7, 2015)
 
S.K. Ojha, P.K. Kasanaboina, L. Reynolds, T. Rawdanowicz, Y. Liu, R.M. White and Shanthi Iyer, " Study of Be Doping in GaAs Nanowires Using Photoluminescence and Raman Spectroscopy", NAMBE 2015, poster presentation, Mayan Riviera, Mexico (Oct 4-7, 2015)

P. Kasanaboina, P. Deshmukh, L. Reynolds, Y. Liu, S. Iyer, “Effects of Annealing on GaAs/GaAsSbN/GaAs Core/multi-shell Nanowires”, The 31st North American Conference on Molecular Beam Epitaxy (NAMBE 2015), Poster Presentation, Mayan Riviera,Mexico,October 4 - 7, 2015.  
 
Estiak Ahmad, P. K. Kasanaboina, Manish Sharma, Jia Li, and Shanthi Iyer, “Study of MBE Grown Te Doped Axial GaAs/GaAsSb Heterostructure Nanowires” Nano manufacturing-2015, Joint School of Nanoscience and Nanoengineering, Greensboro,NC, Poster presentation, Sep 30, 2015

Pavan Kasanaboina and Shanthi Iyer, “Patterned Growth of GaAs Nanowires using Electron Beam Lithography”,  Nano Manufacturing Conference 2015, Greensboro, NC, Sept. 30, 2015.

Manish Sharma, Pavan K. Kasanaboina, Prithviraj Deshmukh, and Shanthi Iyer, “Enhancement in Photoluminescence with Nitride Surface Passivation of GaAs/GaAsSb Core-Shell Nanowire”, Nano Manufacturing 2015, Greensboro, NC, September 30, 2015.


Prithviraj Deshmukh, Pavan K. Kasanaboina, and S. Iyer, “Effects of Annealing on GaAs/GaAsSbN/GaAs Core/Multi-Shell Nanowires”, Nano Manufacturing Conference 2015, Greensboro, NC, Sept. 30, 2015.
 

Pavan Kumar Kasanaboina, Sai Krishna Ojha, Shifat Us Sami, Lewis Reynolds, Yang Liu, Shanthi Iyer , “Growth Temperature Dependence of the GaAs/GaAsSb Core-Shell Nanowires Grown by Molecular Beam Epitaxy”, Oral Presentation in 57th Electronic Materials Conference in Narrow Bandgap Materials and Devices Session L.,Columbus, Ohio, June 24, 2015

Pavan Kumar Kasanaboina, Sai Krishna Ojha, Shifat Us Sami, C. Lewis Reynolds Jr., Yang Liu and Shanthi Iyer, “Engineering of GaAs/GaAsSb Nanowires for Next Generation IR Photodetectors”, poster presentation, 4th Annual Graduate Poster Competition COE 2015, NC,USA(April 24th , 2015).

Sai Krishna Ojha, Pavan Kumar Kasanaboina, Lewis Reynolds, Tom Rawdanowicz and Shanthi Iyer, “Be doping of core & core/shell GaAs nanowires through molecular beam epitaxy“, poster presentation, 4th Annual Graduate Poster Competition COE 2015, NC,USA(April 24th , 2015)

Pavan Kumar Kasanaboina, Sai Krishna Ojha, Shifat U. Sami, Lewis Reynolds, Yang Liu and Shanthi Iyer,"Effect of Sb on Morphology and Optical Properties of GaAs/GaAsSb Nanowires Grown by Molecular Beam Epitaxy”, Poster presentation, Fitzpatrick Institute for Photonics (FIP) Annual Symposium, Duke University, Durham, NC (March 9-10, 2015).

Sai Krishna Ojha, Pavan Kumar Kasanaboina, Lewis Reynolds, Tom Rawdanowicz and Shanthi Iyer, “Effect of Be doping on core & core/shell GaAs nanowires through molecular beam epitaxy“,Fitzpatrick Institute for Photonics (FIP) Annual Symposium, Duke University, Durham, NC,USA(March 9-10th, 2015) poster presentation

Pavan Kumar Kasanaboina, Sai Krishna Ojha, Shifat Us Sami, Lewis Reynolds and Shanthi Iyer Structural and Optical Characteristics of GaAs/GaAsSb Core-Shell Structured Nanowires Grown By Molecular Beam Epitaxy, MRS/ASM/AVS Meeting Joint Symposium 2014,Raleigh,NC, Oral presentation, Nov 7,2014.

Sai Krishna Ojha, Pavan Kumar Kasanaboina, Lew Reynolds and Shanthi Iyer,” Compositional variation of Sb in Ga assisted axial GaAs/GaAsSb/GaAs heterostructure nanowires on chemically etched Si substrate”, MRS/ASM/AVS Joint Symposium 2014, poster presentation, Raleigh, NC.(Nov 7th,2014)

Md Shifat Us Sami, JiaLi, Sai Krishna Ojha, Pavan Kumar Kasanaboina and , Shanthi Iyer,“A Low Temperature Micro-photoluminescence Study of Self-assisted MBE Grown Core and Core-Shell Configured GaAsSb(N)/GaAs Nanowires for Nanoscale Photodetectors”, MRS/ASM/AVS Joint Symposium at NCSU, Friday, November 7, 2014.

Md Shifat Us Sami, Jia Li, Sai Krishna Ojha, Pavan Kumar Kasanaboina and ShanthiIyer, “ Micro-photoluminescence Study of Self-assisted MBE Grown Core and Core-Shell GaAs/GaAsSb Nanowires”, Nano Manufacturing 2014 – Conference at JSNN, Wednesday, September 24, 2014

Pavan Kumar Kasanaboina,Sai Krishna Ojha, Shifat Us Sami, Lewis Reynolds, Jia Li and Shanthi Iyer, “Compositional Modulation of GaAs/GaAsSb Radial Heterostructured Nanowires for Telecommunication Applications,” Nano manufacturing-2014,Joint School of Nanoscience and Nanoengineering, Greensboro, NC, Poster presentation, Sep 24,2014

Sai Krishna Ojha, Pavan Kumar Kasanaboina, Lewis Reynolds, Tom Rawdanowicz and Shanthi Iyer, “Comparison of Ga assisted axial GaAs/GaAsSb/GaAs heterostructure nanowires with and without chemical etching on Si substrate “, poster presentation, Nano Manufacturing 2014 Conference, Greensboro, NC(Sep 24th,2014)

Sai Krishna Ojha, Pavan Kumar Kasanaboina, Lewis Reynolds, Tom Rawdanowicz and Shanthi Iyer, "A study of Be doping in Ga assisted GaAs Nanowires by Molecular Beam Epitaxy",NAMBE 2014, poster presentation, Flagstaff,Arizona (Sep 8, 2014)

Sai Krishna Ojha, Pavan Kumar Kasanaboina,Lewis Reynolds, Thomas Rawdanowicz and Shanthi Iyer, "Growth Optimization of GaAsSb Inserts in Ga Assisted GaAs/GaAsSb Heterostructure Nanowires for IR Photodetector Applications", 56th Electronic Materials Conference (EMC) and Exhibition, Santa Barbara, CA, (June 24-27, 2014).

Pavan Kasanaboina, Sai Krishna Ojha, Lewis Reynolds, Thomas Rawdanowicz, R.M.White and Shanthi Iyer, “Building of Nano structures: A Selective Area Growth of GaAs Nanowires”, College of Engineering Poster Competition, NCA&T State University, Greensboro,NC, Poster presentation,(April,25th 2014); Got a runner up award ($350) for the best poster.

Sai Krishna Ojha, Pavan Kumar Kasanaboina, Lewis Reynolds, Thomas Rawdanowicz and Shanthi Iyer, “ Effect of Be doping and GaAsSb inserts in self-assisted GaAs nanowires(NWs) for IR device Applications”, College of Engineering Poster Competition, NCA&T State University, Greensboro,NC, Poster presentation,(April,25th, 2014)

Pavan Kumar Kasanaboina, Sai Krishna Ojha,Lewis Reynolds, Thomas Rawdanowicz, R.M.White and Shanthi Iyer, “ Design of p-GaAs Nanowires for p-i-n Heterostructured Nanowire Photodetector/Solar Cell”, Nano manufacturing-2013,Joint School of Nanoscience and Nanoengineering, Greensboro,NC, Poster presentation, Sep 25,2013

Sai Krishna Ojha, Pavan Kumar Kasanaboina,Lewis Reynolds, Thomas Rawdanowicz and Shanthi Iyer, “Effect of GaAsSb Inserts in Ga Assisted GaAs/GaAsSb Heterostructured Nanowires and Be Doping in GaAs NWs”, MRS Fall Meeting 2013, Oral presentation,(Dec 03 2013).

Sai Krishna Ojha, Pavan Kumar Kasanaboina,Lewis Reynolds, Tom Rawdanowicz and Shanthi Iyer, “Study of Ga-assisted GaAs/GaAsSb Heterostructure Nanowires and Be Doping in GaAs Nanowires for IR Photodetector Applications”, NAMBE 2013, Oral presentation,(October 9, 2013).

 

Ph.D. Dissertation Supervised

 

 

“Bandgap Tuning of GaAs/GaAsSb(N) Core-Shell Nanowires Grown by Molecular Beam Epitaxy”, Pavan Kumar Kasanaboina, 04/16.

 

“Self-Catalyzed growth of Axial GaAs/GaAsSb Nanowires by Molecular Beam Epitaxy for Photodetectors”, Sai Krishna Ojha, 04/15.

 

 

Master's Thesis Supervised

 

“Micro-Photoluminescence (m-PL) Study of Core-Shell GaAs/GaAsSb Nanowires grown by Self-Assisted Molecular Beam Epitaxy”, Md Shifat Us Sami, 04/15

“Vapor-Liquid-Solid Growth Mechanism for Self-Assisted GaAs Nanowires” Prithviraj Deshmukh, 08/2014