Sef and Jian et al's paper is accepted for publication at Nano Lett.! Congratulations! "Broad-range modulation of light emission in two-dimensional semiconductors by molecular physi-sorption gating". News release here.
2013 March:
The group says goodbye to our two members, Chun Cheng and Tyler Matthews. Congratulations to you on your new position! Look at the farewell photo here.
2013 March:
Sangwook et al's paper is accepted for publication at J. Am. Chem. Soc.! Congratulations! "Axially Engineered Metal-Insulator Phase Transition by Graded Doping VO2 Nanowires".
2013 February:
Our collaborated work with Chinese Academy of Sciences is accepted for publication at Carbon! Congratulations! "Stable p- and n-type doping of few-layer graphene/graphite".
2013 January:
Kevin et al's paper is accepted for publication at ACS Nano! Congratulations! "Performance limits of micro-actuation with vanadium dioxide as a solid engine".
2013 January:
Deyi and Kai et al's paper is accepted for publication at J. Appl. Phys.! Congratulations! "Comprehensive Study of the Metal-Insulator Transition in Pulsed Laser Deposited Epitaxial VO2 Thin Films".
2012 December:
Congratulations to Joonki on passing his Qual exam! He will be the 7th Ph.D. graduating from the Wu group.
2012 November:
Kai et al's paper is accepted for publication at Nano Lett.! Congratulations! "Dense Electron System from Gate-Controlled Surface Metal-Insulator Transition".
2012 November:
Kai et al's paper is accepted for publication at Nano Lett.! Congratulations! "Giant-Amplitude, High-Work Density Microactuators with Phase Transition Activated Nanolayer Bimorphs". News release here, also featured at http://science.energy.gov/.
2012 October:
Sef and Jian et al's paper is accepted for publication at Nano Lett.! Congratulations! "Thermally driven crossover from indirect toward direct bandgap in 2D semiconductors: MoSe2 versus MoS2". News release here.
2012 September:
Our work with collaborators Prof. Ruan at Michigan State University is accepted for publication at Phys. Rev. Lett.! Congratulations! "Decoupling of structural and electronic phase transitions in VO2".
2012 August:
Work by Jian et al is accepted for publication at J. Appl. Phys.! Congratulations! "Directed Assembly of Nano-scale Phase Variants in Highly Strained BiFeO3 Thin Films".
2012 June:
Junqiao Wu is promoted to tenured Associate Professor! Congratulations and thanks to all past and current group members!
2012 May:
Congratulations to Alejandro on his commencement, the 4th PhD from the Wu Group! Look at the photo here.
2012 May:
The Wu Group welcomes a new postdoc, Dr. Changhyun Ko!
2012 April:
Prof. Wu and co-workers' paper on InN published in 2002 is among the top 50 most cited papers in Applied Physics Letters' 50 years of history! "Unusual properties of the fundamental band gap of InN", Wu et al, Appl. Phys. Lett. 80, 3967 (2002).
2012 February:
Chun and Kai's paper is accepted for publication at Appl. Phys. Lett.! Congratulations! "Ultra-long, Free-standing, Single-Crystalline Vanadium Dioxide Micro/ Nanowires Grown by Simple Thermal Evaporation".
2012 February:
The Wu Group welcomes a new postdoc, Dr. Sef Tongay!
2012 January:
Tyler's paper is accepted for publication at Phys. Rev. Lett.! Congratulations! "Large Reaction Rate Enhancement in Formation of Ultra-Thin AuSi Eutectic Layer". See LBNL news report.
2011 December:
Congratulations to Tyler on his passing of the Qual exam! He will be the 5th Ph.D. graduating from the Wu group.
2011 December:
The Wu Group welcomes a new visiting Postdoc, Dr. Sangwook Lee!
2011 November:
Joanne's paper is accepted for publication at Appl. Phys. Lett.! Congratulations! "Mismatched Alloy Nanowires for Electronic Structure Tuning".
2011 November:
Chun and Wen's paper is accepted for publication at ACS Nano! Congratulations! "Heat Transfer across the Interface between Nanoscale Solids and Gas".
2011 October:
The Wu Group welcomes a new graduate student, Kelvin Lo!
2011 July:
Deyi et al's paper is accepted for publication at Nano Letters! Congratulations! "Electrothermal Dynamics of Semiconductor Nanowires under Local Carrier Modulation".
2011 July:
Jan and Deyi et al's paper is accepted to be published at Physical Review Letters! Congratulations!
"Efficient photovoltaic current generation at ferroelectric domain walls".
2011 July:
Deyi's paper on electrothermally driven current vortices is selected as a featured story at the Physical Review Focus by the American Physical Society. Physical Review Focus selects only four papers each month out of all physical review journals. Congratulations!
2011 June:
Congratulations to Devesh and Joanne on their graduation! They are the first Ph.Ds the Wu group has graduated. Look at the photo of the farewell dinner here.
2011 June:
Congratulations to Devesh and co-authors on their paper accepted by J. Appl. Phys: "Decoupling Single Nanowire Mobilities Limited by Surface Scattering and Bulk Impurity Scattering"!
2011 June:
Congratulations to Deyi and co-authors on their paper accepted by Phys. Rev. B: "Electrothermally Driven Current Vortices in Inhomogeneous Bipolar Semiconductors"!
2011 May:
Congratulations to Greg on his commencement! Look at the photo here.
2011 May:
Prof. Wu is one of the 65 winners of the prestigious DOE Early Career Award selected from 1150 applicants nation-wide! Thanks to the contributions of all group members!
2011 May:
Congratulations to Wen and co-authors on their paper accepted by Phys. Rev. B: "Large Kinetic Asymmetry in Twin Wall-Mediated Metal-Insulator Phase Transition"!
2011 April:
We welcome a new postdoc, Dr. Chun Cheng!
2011 April:
Congratulations to Alejandro on passing is Qual exam!
Prof. Wu has won the NSF CAREER Award from NSF's Division of Materials Research! The CAREER Award is the most prestigious award from NSF supporting junior faculty.
2011 February:
We welcome a new postdoc, Dr. Kai Liu!
2010 December:
Congratulations to Alejandro and co-authors on their paper accepted by Appl. Phys. Lett.: "Effects of point defects on thermal and thermoelectric properties of InN"!
2010 October:
Congratulations to Jinbo and co-authors on their paper accepted by J. Appl. Phys.: "Colossal Thermal-Mechanical Actuation via Phase Transition in VO2 Microcantilevers"!
2010 October:
Congratulations to Alejandro and co-authors on their paper accepted by Appl. Phys. Lett.: "GaN1-xBix: Extremely Mismatched Semiconductor Alloys"!
2010 June:
Congratulations to Jinbo and co-authors on their paper accepted by Nano Lett.: "Extended Mapping and Exploration of the Vanadium Dioxide Stress-Temperature Phase Diagram"!
2010 May:
Joanne and Devesh graduate with PhD Degree. Congratulations Dr. Yim and Dr. Khanal! Look at the photo here.
2009 December:
Congratulations on our thermoelectrics paper collaborated with Prof. Grossman's Group accepted by Phys. Rev. Lett.: "Enhancing thermoelectric power factor with highly mismatched isoelectronic doping"! The paper is here and the news release is here.
2009 December:
Congratulations to Wen and Simon on their paper accepted by Phys. Rev. B as a Rapid Communication: "Superelastic Metal-Insulator Phase Transition in Single-Crystal Vanadium Dioxide Nanobeams"!
2009 November:
Congratulations to Greg on his paper accepted by Solar Energy Materials and Solar Cells: "Finite Element Simulations of Compositionally Graded InGaN Solar Cells"!
2009 November:
Congratulations to Joanne on passing her Qualifying exam! The second in the Wu group!
2009 October:
Congratulations to Joanne and Deirdre on their paper accepted at Nano Research: "Synthesis and ex-situ doping of ZnTe and ZnSe nanostructures with extreme aspect ratios"!
2009 October:
Congratulations to Devesh on his paper accepted at Appl. Phys. Lett.: "Determining surface Fermi level pinning position of InN nanowires using electrolyte gating"!
2009 October:
The Wu group Welcomes a new member, Mr. Alex Luce, a Ph.D. student co-advised by Profs. Wu and O. D. Dubon. Welcome!
2009 October:
Congratulations to Jinbo and Wen on their paper accepted at Nano Lett.: "Thermoelectric Effect across the Metal-Insulator Domain Walls in VO2 Microbeams"!
2009 September:
Congratulations to Devesh on passing his Qualifying exam! The first in the Wu group!
2009 September:
The Wu group Welcomes a new member, Mr. Deyi Fu, a visiting Ph.D. student from Nanjing University, China.
2009 September:
Congratulations to Joanne on her paper accepted at J. Am. Chem. Soc.: "Sublimation of GeTe nanowires and evidence of its size effect studied by in situ TEM"!
2009 August:
Our paper first-authored by Jinbo is accepted for publication at Nature Nanotechnology: "Strain engineering and one-dimensional organization of metal-insulator domains in single-crystal VO2 beams"! Congratulations! LBNL News release is here and the paper is here. This paper is also selected as the cover highlight of the November 2009 issue of Nature Nanotech.
2009 August:
The Wu group welcomes four new members, Jian Zhou (graduate), Alvin Tang (undergraduate), Deirdre Chen (undergraduate) and Cydnee Ng (high-school).
2008 August:
The Wu group welcomes a new member, Alejandro Levander.
2008 June:
The Wu group welcomes two new members, Tyler Matthews and Yi He.
2008 April 8:
Congratulations to Greg on passing the prelim exam!
2007 October 2:
Welcome, Jinbo Cao!
2007 August 22:
Welcome, Greg Brown!
2007 August 15:
New paper by D. Khanal, et. al, Nano Lett.: "Gate Coupling and Charge Distribution in Nanowire Field Effect Transistors"!
2007 August 01:
Welcome, Dr. Bin Xiang!
2007 July 10:
New paper by Joanne Yim et. al, Phys. Rev. B, Rapid Commun.:"Effects of Surface States on Electrical Characteristics of InN and InGaN"!
2007 March 13:
Our first group paper is accepted for
publication in
Nano Letters: "Effects of Quantum Confinement on the Doping Limit of Semiconductor Nanowires"!
2007 January 30:
Welcome, Patrick Flanigan!
2006 November 15:
Welcome to the Wu group, Kevin Wang!
2006 November 14:
Congratulations on passing your preliminary exam, Mr. Khanal
and Mr. Speaks!
2006 October 09:
The Wu group welcomes our newest graduate student, Derrick Speaks!
2006 August 22:
Inauguration of the Wu group at UC Berkeley
with three founding members: Prof. Wu, Devesh Khanal, and Joanne Yim.
