Kannatassen Appavoo (Krishen)
Kannatassen Appavoo (Krishen)
Assistant Professor, Department of Physics, UAB
Verified email at uab.edu - Homepage
TitleCited byYear
Extremely efficient internal exciton dissociation through edge states in layered 2D perovskites
JC Blancon, H Tsai, W Nie, CC Stoumpos, L Pedesseau, C Katan, ...
Science 355 (6331), 1288-1292, 2017
3182017
Light-activated photocurrent degradation and self-healing in perovskite solar cells
W Nie, JC Blancon, AJ Neukirch, K Appavoo, H Tsai, M Chhowalla, ...
Nature communications 7, 11574, 2016
3132016
Structural patterns at all scales in a nonmetallic chiral Au133 (SR) 52 nanoparticle
C Zeng, Y Chen, K Kirschbaum, K Appavoo, MY Sfeir, R Jin
Science Advances 1 (2), e1500045, 2015
2232015
Role of defects in the phase transition of VO2 nanoparticles probed by plasmon resonance spectroscopy
K Appavoo, DY Lei, Y Sonnefraud, B Wang, ST Pantelides, SA Maier, ...
Nano letters 12 (2), 780-786, 2012
1702012
Polaron stabilization by cooperative lattice distortion and cation rotations in hybrid perovskite materials
AJ Neukirch, W Nie, JC Blancon, K Appavoo, H Tsai, MY Sfeir, C Katan, ...
Nano letters 16 (6), 3809-3816, 2016
1522016
Ultrafast changes in lattice symmetry probed by coherent phonons
S Wall, D Wegkamp, L Foglia, K Appavoo, J Nag, RF Haglund Jr, ...
Nature communications 3, 721, 2012
1402012
Revealing plasmonic gap modes in particle-on-film systems using dark-field spectroscopy
DY Lei, AI Fernández-Domínguez, Y Sonnefraud, K Appavoo, ...
Acs Nano 6 (2), 1380-1386, 2012
1372012
Ultrafast phase transition via catastrophic phonon collapse driven by plasmonic hot-electron injection
K Appavoo, B Wang, NF Brady, M Seo, J Nag, RP Prasankumar, DJ Hilton, ...
Nano letters 14 (3), 1127-1133, 2014
1032014
Detecting nanoscale size dependence in VO2 phase transition using a split-ring resonator metamaterial
K Appavoo, RF Haglund Jr
Nano letters 11 (3), 1025-1031, 2011
842011
Tracking the evolution of electronic and structural properties of VO 2 during the ultrafast photoinduced insulator-metal transition
S Wall, L Foglia, D Wegkamp, K Appavoo, J Nag, RF Haglund Jr, ...
Physical Review B 87 (11), 115126, 2013
792013
Exciton correlations in intramolecular singlet fission
SN Sanders, E Kumarasamy, AB Pun, K Appavoo, ML Steigerwald, ...
Journal of the American Chemical Society 138 (23), 7289-7297, 2016
682016
Single-particle plasmon resonance spectroscopy of phase transition in vanadium dioxide
DY Lei, K Appavoo, Y Sonnefraud, RF Haglund Jr, SA Maier
Optics letters 35 (23), 3988-3990, 2010
622010
Optically-Triggered Nanoscale Memory Effect in a Hybrid Plasmonic-Phase Changing Nanostructure
SAM Dang Yuan Lei, Kannatassen Appavoo, Filip Ligmajer, Yannick Sonnefraud ...
ACS Photonics, 2015
542015
Hybrid Si-VO 2-Au optical modulator based on near-field plasmonic coupling
P Markov, K Appavoo, RF Haglund, SM Weiss
Optics express 23 (5), 6878-6887, 2015
382015
Electron-beam deposition of vanadium dioxide thin films
RE Marvel, K Appavoo, BK Choi, J Nag, RF Haglund
Applied Physics A 111 (3), 975-981, 2013
372013
Quantifying bulk and surface recombination processes in nanostructured water splitting photocatalysts via in situ ultrafast spectroscopy
K Appavoo, M Liu, CT Black, MY Sfeir
Nano letters 15 (2), 1076-1082, 2015
302015
Polarization selective phase-change nanomodulator
K Appavoo, RF Haglund Jr
Scientific reports 4, 6771, 2014
302014
Role of size and defects in ultrafast broadband emission dynamics of ZnO nanostructures
K Appavoo, M Liu, MY Sfeir
Applied Physics Letters 104 (13), 133101, 2014
232014
Enhanced broadband ultrafast detection of ultraviolet emission using optical Kerr gating
K Appavoo, MY Sfeir
Review of Scientific Instruments 85 (5), 055114, 2014
182014
Unravelling photocarrier dynamics beyond the space charge region for photoelectrochemical water splitting
W Zhang, D Yan, K Appavoo, J Cen, Q Wu, A Orlov, MY Sfeir, M Liu
Chemistry of Materials 29 (9), 4036-4043, 2017
142017
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