Laboratory for Semiconductor Electrochemistry

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PATENTS

  1. V. Chakrapani, A. Ko & K. Kumar, "Etch Process For Reducing Directed Self Assembly Pattern Defectivity," Patent pending
  2. V. Chakrapani, A. Ko & K. Kumar, "Etch Process For Reducing Directed Self Assembly Pattern Defectivity Using Direct Current Superpositioning," Patent pending

PUBLICATIONS

2017

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Gaseous Reactions in Adsorbed Water Present on Transition Metal Oxides

Q. Wang, A. Puntambekar & V. Chakrapani*

Journal of Physical Chemistry C, 121 (2017), pp 13151-13163

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Facile Synthesis of Large Area Two-Dimensional Layers of Transition-Metal Nitride and Their Use as Insertion Electrodes

S. Joshi, Q. Wang, A. Puntambekar & V. Chakrapani*

ACS Energy Letters, 2 (2017) pp 1257-1262

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2016

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Defect-induced Burstein-Moss shift in reduced V2O5 nanostructures

Q. Wang, M. Brier, S. Joshi, A. Puntambekar & V. Chakrapani*

Physical Review B, 94 (2016) pp 245305

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Electrochemical Charging of CdSe Quantum Dots: Effects of Adsorption Versus Intercalation

A. Puntambekar, Q. Wang, L. Miller, N. Smieszek & V. Chakrapani*

ACS Nano, 10 (2016) pp 10988-10999

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Vacancy-induced Semiconductor-Insulator-Metal Transitions in Non-Stoichiometric Nickel and Tungsten Oxides

Q. Wang, A. Puntambekar & V. Chakrapani*

Nano Letters, 16 (2016) pp 7067-7077

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Excitation energy transfer from long-persistent phosphors for enhancing power conversion of dye-sensitized solar cells

A. Puntambekar & V. Chakrapani*

Physical Review B, 93 (2016) pp 245301

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Modulation of stoichiometry, morphology and composition of transition metal oxide nanostructures through hot wire chemical vapor deposition

V. Chakrapani*, M. Brier, A. Puntambekar & T. DiGiovanni

Journal of Materials Research, Annual Focus Issue: Early Career Scholars in Materials Science, 31 (2016) pp 17-27

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2014

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Semiconductor Junctions: Solid-Solid Junctions (Invited book chapter)

V. Chakrapani*

Encyclopedia of Applied Electrochemistry, Editors Robert F. Savinell, Ken-ichiro Ota and Gerhard Kreysa, Springer New York, 2014. 1882-1893.

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2013

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Electrochemically Induced p-Type Conductivity in Carbon Nanotubes

V. Chakrapani,* G. U. Sumanasekera, B. Abeyweera, A. Sherehiy, & J. C. Angus

ECS Solid State Letters, 2 (2013) pp M57-M60

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Fabrication of 28nm pitch Si fins with DSA lithography

G. Schmid, R. Farrell, J. Xu, C. Park, M. Preil, V. Chakrapani, N. Mohanty, A. Ko, M. Cicoria, D. Hetzer, M. Somervell, & B. Rathsack

Proc. SPIE 8680, Alternative Lithographic Technologies V, 86801F (March 26, 2013)

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2012

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Optimization of low-diffusion EUV resist for linewidth roughness and pattern collapse on various substrates

J. W. Thackeray, J. F. Cameron, M. Wagner, S. Coley, O. Ongayi, W. Montgomery, D. Lovell, J. Biafore, V. Chakrapani, & A. Ko

Proc. SPIE 8325, Advances in Resist Materials and Processing Technology XXIX, 832508 (March 29, 2012)

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A combined photovoltaic and Li ion battery device for continuous energy harvesting and storage

V. Chakrapani,* F. Rusli, M. A. Filler, & P. A. Kohl

J. Power Sources, 216 (2012) pp 84-88

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Advances in low diffusion EUV resist

J. W. Thackeray, J. F. Cameron, M. Wagner, S. Coley, V. P. Labeaume, O. Ongayi, W. Montgomery, D. Lovell, J. Biafore, V. Chakrapani, & A. Ko

J. Photopolymer Sci. Technol., 25 (2012) pp 641-646

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Silicon nanowire anode: Improved battery life with capacity‐limited cycling

V. Chakrapani, F. Rusli, M. A. Filler, & P. A. Kohl

J. Power Sources, 205 (2012) pp 433-438

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2011

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Quaternary Ammonium Ionic Liquid Electrolyte for a Silicon Nanowire‐Based Lithium Ion Battery

V. Chakrapani, F. Rusli, M. A. Filler, & P. A. Kohl

J. Phys. Chem. C, 115 (2011) pp 22048-22053

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Understanding the Role of the Sulfide Redox Couple (S2−/Sn2−) in Quantum Dot‐Sensitized Solar Cells

V. Chakrapani, D. Baker, & P. V. Kamat

J. Am. Chem. Soc., 133 (2011) pp 9607-9615

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2010

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Modulation of Electron Injection in CdSe‒TiO2 System through Medium Alkalinity

V. Chakrapani, K. Tvrdy, & P. V. Kamat

J. Am. Chem. Soc., 132 (2010) pp 1228-1229

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2009

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WO3 and W2N nanowire arrays for photoelectrochemical hydrogen production

V. Chakrapani,* J. Thangala, & M. K. Sunkara*

Int. J. Hydrogen Energy, 34 (2009) pp 9050-9059

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A hot‐wire chemical vapor deposition (HWCVD) method for metal oxide and their alloy nanowire arrays

J. Thangala, S. Vaddiraju, S. Malhotra, V. Chakrapani, & M. K. Sunkara

Thin Solid Films, 517 (2009) pp 3600-3605

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Electrochemical Charge Transfer to Diamond and Other Materials

V. Chakrapani, J. C. Angus, K. Kash, A. B. Anderson, S. Desai, & G. Sumanasekera

Mater. Res. Soc. Symp. Proc., 1203 (2009) in Diamond Electronics and Bioelectronics-Fundamentals to Applications III Eds: P. Bergonzo, J.E. Butler, R.B. Jackman, K.P. Loh, M. Nesladek

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2008

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Band‐Edge Engineered Hybrid Structures for Dye‐Sensitized Solar Cells Based on SnO2 Nanowires

S. Gubbala, V. Chakrapani, V. Kumar, & M. K. Sunkara

Adv. Funct. Mater., 18 (2008) pp 2411-2418

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Electrochemical Pinning of the Fermi Level: Mediation of Photoluminescence from Gallium Nitride and Zinc Oxide

V. Chakrapani, C. Pendyala, K. Kash, A. B. Anderson, M. K. Sunkara, & J. C. Angus

J. Am. Chem. Soc., 130 (2008) pp 12944-12952

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2007

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Electrochemical Charge Transfer to Diamond

V. Chakrapani, J. C. Angus, A. B. Anderson, & G. Sumanasekera

Mater. Res. Soc. Symp. Proc., 956 (2007) in Diamond Electronics-Fundamentals to Applications Eds: P. Bergonzo, R.Gat, R.B. Jackman, C.E. Nebel

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Charge Transfer Equilibria Between Diamond and an Aqueous Oxygen Electrochemical Redox Couple

V. Chakrapani, J. C. Angus, A. B. Anderson, S. D. Wolter, B. R. Stoner, & G. U. Sumanasekera

Science, 318 (2007) pp 1424-1430

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2005

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Studies of Adsorbate‐Induced Conductance of Diamond Surfaces

V. Chakrapani, S. C. Eaton, A. B. Anderson, M. Tabib-Azar, & J. C. Angus

Electrochem. Solid-State Lett., 8 (2005) pp E4-E8

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Surface conductivity of undoped, hydrogen terminated diamond

V. Chakrapani, A. B. Anderson, & J. C. Angus

Diamond Nanotechnogy III, AIChE proc., 395c, Cincinnati, OH, (2005)

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