2021- Professor of Physics and Astronomy,
University of California at Davis 2014-2021 Associate Professor
of Physics and Astronomy, University of
California at Davis 2008-2014 Assistant Professor of Physics and
Astronomy, University of California at
Davis 2005-2008 Postdoc, Harvard
University 2000-2005 Ph.D. in Physics,
University of Chicago
1995-2000 B.S. in Material Science, University of Science
and Technology of China
Our research group explores condensed matter physics taking
advantage of the monocrystallinity and the large surface-to-volume
ratio in low dimensional nanocrystals. Our work is mainly supported
by National Science Foundation and UC Lab Fees program. Recent
research topics include:
1) Topological insulators: explore how charge and spin
transport in topological insulators for spintronics and quantum
computation.
AdamLGross, YasenHou, AntonioRossi, DongYu,andInnaMVishik,Nanoseconddynamics in intrinsic
topological insulator Bi 2-x Sb x Se 3 revealed by time-resolved
optical reflectivity, Physical Review B 103, L020301 (2021).
Yasen
Hou, Rui Xiao, Senlei Li, Lang Wang, and Dong Yu, Nonlocal
chemical potential modulation in topological insulators enabled
by highly mobile trapped charges, ACS Applied Electronic Materials 2, 34363442 (2020).
Yasen
Hou, Rui Wang, Rui Xiao, Luke McClintock, Henry Clark Travaglini,
John Paulus Francia,HarryFetsch,OnurErten,SergeyYSavrasov,BaigengWang,AntonioRossi,Inna Vishik,EliRotenberg,andDongYu,Millimetre-longtransportofphotogeneratedcarriersin
topological insulators, Nature Communications 10, 5723 (2019).
XingyuePeng,YimingYang,RajivRPSingh,SergeyYSavrasov,andDongYu,Spingenerationviabulkspincurrentinthree-dimensionaltopologicalinsulators,NatureCommunications 7, 10878 (2016). 2) Halide
perovskites:
understand why these materials are so good at converting
light into electricity and make it even better.
Luke McClintock, Ziyi Song, H Clark
Travaglini, R Tugrul Senger, Vigneshwaran Chandrasekaran,Han Htoon,Dmitry Yarotski, and
Dong Yu, Highly mobile excitons in single crystal methylammonium
lead tribromide perovskite microribbons, Journal of PhysicalChemistry Letters 13, 36983705 (2022).
Luke McClintock, Rui Xiao, Yasen Hou,
Clinton Gibson, Henry Clark Travaglini, David Abramovitch,LiangZTan,RamazanTugrulSenger,YongpingFu,SongJin,andDongYu, Temperature and
gate dependence of carrier diffusion in single crystal
methylammonium leadiodideperovskitemicrostructures,JournalofPhysicalChemistryLetters11,10001006(2020). Rui
Xiao, Yasen Hou, Yongping Fu, Xingyue Peng, Qi Wang, Eliovardo
Gonzalez, Song Jin, and Dong Yu, Photocurrent mapping in
single-crystal methylammonium lead iodide perovskite
nanostructures, Nano Letters 16, 77107717 (2016).
3) Metal
insulator transition: can we make a faster computer based
on phase transition?
Yasen Hou, Rui Xiao, Xin Tong, Scott
Dhuey, and Dong Yu, In situ visualization of fast surface ion
diffusion in vanadium dioxide nanowires, Nano
letters 17,
77027709 (2017).
Chris
Miller,
Mark Triplett, Joel Lammatao, Joonki Suh, Deyi Fu, Junqiao Wu, and
Dong Yu,Unusuallylongfreecarrierlifetimeandmetal-insulatorbandoffsetinvanadiumdioxide, Physical Review B 85, 085111 (2012).
4) Nanowire and quantum dot solar cells: confine
electrons and photons allows for enhanced absorption and more
efficient solar cells.
Yiming Yang, Xingyue Peng, Steven Hyatt, and Dong Yu, Broadband
quantum efficiency enhancement in high index nanowire resonators,
Nano Letters 15, 35413546 (2015). YimingYang,XingyuePeng,Hong-SeokKim,TaehoKim,SanghunJeon,HangKyuKang, WonjunChoi,JindongSong,Yong-JooDoh,andDongYu,Hotcarriertrappinginducednegative photoconductance in
inas nanowires toward novel nonvolatile memory, Nano Letters15, 58755882 (2015).
1.LukeMMcClintock,LongYuan,ZiyiSong,MichaelTPettes,DmitryYarotski,RijanKar- kee, David A
Strubbe, Liang Z Tan,
Azza Ben-Akacha, Biwu Ma, Yunshu Shi, Valentin Taufour,andDongYu,Surfaceeffectsonanisotropicphotoluminescenceinone-dimensional
organic metal halide hybrids, Small Structures , 2200378 (2023).
2.Duhyuk Kwon, Bum-Kyu Kim, Yong-Joo
Doh, Dong Yu,
Jonghyun Song, and Myung-HoBae,Quantuminterferenceprobedbythethermovoltageinsb-dopedbi2se3nanowires, iScience
26, 105691 (2023).
3.Bob Minyu Wang, Yuqing Zhu, Henry
Clark Travaglini,
Sergey Y Savrasov, and Dong Yu,Schottkyelectricfieldinducedcircularphotogalvaniceffectincd3as2nanobelts,arXiv preprint 10.48550/arXiv.2210.03819(2022).
4.Luke McClintock, Ziyi Song, H Clark
Travaglini, R
Tugrul Senger, Vigneshwaran Chan- drasekaran,Han Htoon,Dmitry
Yarotski,
and Dong Yu, Highly mobile excitons in sin-gle
crystal methylammonium lead tribromide perovskite
microribbons, Journal of PhysicalChemistry Letters 13,
36983705 (2022).
5.Rak-Hee Kim, Nam-Hee Kim, Bongkeon
Kim, Yasen Hou,
Dong Yu, and Yong-Joo Doh, Multipleandreevreflectionsintopologicalinsulatornanoribbons,CurrentAppliedPhysics34, 107111 (2022).
6.KuenWaiTang,BobMinyuWang,HenryClarkTravaglini,andDongYu,Modelingofthe
photocurrentinducedbyinversespinhalleffectunderlocalcircularlypolarizedphotoexci-
tation, Physical
Review B 104,
205413 (2021).
8.AdamLGross, YasenHou, AntonioRossi,
DongYu,andInnaMVishik,Nanoseconddy- namics in intrinsic topological
insulator bi 2- x sb x se 3
revealed by time-resolved optical reflectivity, Physical Review B 103, L020301 (2021).
9.Luke McClintock, Rui Xiao, Yasen
Hou, Clinton Gibson,
Henry Clark Travaglini, David Abramovitch,LiangZTan,RamazanTugrulSenger,YongpingFu,SongJin,andDongYu,
Temperature and gate dependence of carrier diffusion in
single crystal
methylammonium leadiodideperovskitemicrostructures,JournalofPhysicalChemistryLetters11,10001006(2020).
13.Nam-HeeKim,Hong-SeokKim,YasenHou,DongYu,andYong-JooDoh,Superconducting quantum
interference
devices made of sb-doped bi2se3 topological insulator
nanoribbons,
Current
Applied Physics 20,
680685 (2020).
14.Yasen
Hou,
Rui Xiao, Senlei Li, Lang Wang, and Dong Yu, Nonlocal
chemical potential
modulation in topological insulators enabled by highly
mobile trapped charges, ACS Ap-plied Electronic Materials 2, 34363442 (2020).
15.Yasen
Hou,
Rui Wang, Rui Xiao, Luke McClintock, Henry Clark
Travaglini, John Paulus
Francia,HarryFetsch,OnurErten,SergeyYSavrasov,BaigengWang,AntonioRossi,Inna
Vishik,EliRotenberg,andDongYu,Millimetre-longtransportofphotogeneratedcarriersin
topological insulators, Nature Communications 10,
5723 (2019).
16.Minjin
Kim,
Jihwan Kim, Yasen Hou, Dong Yu, Yong-Joo Doh, Bongsoo Kim,
Kun Woo Kim, and
Junho Suh, Nanomechanical characterization of quantum
interference in a topo-
logical insulator nanowire, Nature communications 10,
17 (2019).
17.Zheng
Ju,
Yasen Hou, Andrew Bernard, Valentin Taufour, Dong Yu, and
Susan M Kau- zlarich,Ambipolartopologicalinsulatorandhighcarriermobilityinsolutiongrownultrathin
nanoplates of sb-doped bi2se3, ACS Applied Electronic Materials 1, 19171923 (2019).
19.Yasen Hou, Rui Xiao, Xin Tong,
Scott Dhuey, and Dong
Yu, In situ visualization of fast surface ion diffusion in
vanadium dioxide
nanowires, Nano letters 17, 77027709 (2017).
20.Jungdong
Kim,
Eunsoon Oh, Rui Xiao, Sean Ritter, Yiming Yang, Dong Yu,
Ju Hee Im, SangHyukKim,WonJunChoi,andJae-GwanPark,Opticalpropertiesandbridgephotode- tector
integration of lead
sulfide nanowires, Nanotechnology
28, 475706 (2017).
21.Bum-Kyu
Kim,
Hong-Seok Kim, Yiming Yang, Xingyue Peng, Dong Yu, and
Yong-Joo Doh,Strongsuperconductingproximityeffectsinpbssemiconductornanowires,ACSnano11, 221226
(2017).
25.Rui
Xiao,
Yasen Hou, Yongping Fu, Xingyue Peng, Qi Wang, Eliovardo
Gonzalez, Song Jin,
and Dong Yu, Photocurrent mapping in single-crystal
methylammonium lead iodide
perovskite nanostructures, Nano Letters 16,
77107717 (2016).
26.Yiming
Yang,
Xingyue Peng, Steven Hyatt, and Dong Yu, Absorption
enhancement and
carrier diffusion in single lead sulfide nanowire schottky
solar cells, in Low-DimensionalMaterials
and Devices,
Vol. 9553
(SPIE, 2015) pp. 3642.
27.Yiming Yang, Xingyue Peng, Steven
Hyatt, and Dong Yu,
Broadband quantum efficiency enhancement in high index
nanowire resonators, Nano Letters 15,
35413546 (2015).
30.DM Nisson, AP Dioguardi, X Peng,
D Yu, and NJ Curro,
Anomalous nuclear magnetic resonance spectra in bi 2 se 3
nanowires, Physical Review B 90,
125121 (2014).
31.Yiming Yang,Xingyue
Peng, and Dong Yu, High intensity induced photocurrent
polar-ity
switching in lead sulfide nanowire
field effect transistors, Nanotechnology 25,
195202(2014).
32.SyamantaKGoswami,JungdongKim,KiminHong,EunsoonOh,YimingYang,andDong Yu,
Photocurrent and photovoltaic
characteristics of copper sulfide nanowires grown by a
hydrothermal method, Materials Letters 133, 132134 (2014).
39.Hengkui
Wu,
Yiming Yang, Eunsoon Oh, Fachun Lai, and Dong Yu, Direct
synthesis of
high-densityleadsulfidenanowiresonmetalthinfilmstowardsefficientinfraredlightcon-
version, Nanotechnology
23, 265602 (2012).
40.Chris
Miller,
Mark Triplett, Joel Lammatao, Joonki Suh, Deyi Fu, Junqiao
Wu, and Dong
Yu,Unusuallylongfreecarrierlifetimeandmetal-insulatorbandoffsetinvanadiumdioxide,
Physical
Review B 85,
085111 (2012).
41.RionGraham,
ChrisMiller,
EunsoonOh,andDongYu,Electricfielddependentphotocur- rent
decay length in single
lead sulfide nanowire field effect transistors, Nano Letters 11,717722 (2011).
42.Deyi Fu, Jijun Zou, Kevin Wang,
Rong Zhang, Dong Yu,
and Junqiao Wu, Electrother- maldynamicsofsemiconductornanowiresunderlocalcarriermodulation,Nanoletters11,38093815 (2011).
47.Dong
Yu,
Brian L Wehrenberg, Praket Jha, Jiasen Ma, and Philippe
Guyot-Sionnest, Elec-
tronictransportofn-typecdsequantumdotfilms:Effectoffilmtreatment,Journalofappliedphysics 99,
104315 (2006).
50.Philippe
Guyot-Sionnest,
Brian Wehrenberg, and Dong Yu, Intraband relaxation in cdse
nanocrystalsandthestronginfluenceofthesurfaceligands,TheJournalofchemicalphysics123, 074709 (2005).
51.Dong Yu, Congjun Wang, Brian L
Wehrenberg, and
Philippe Guyot-Sionnest, Variable rangehoppingconductioninsemiconductornanocrystalsolids,PhysicalReviewLetters92,216802 (2004).