Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Aravindan Sridharan"'
Publikováno v:
The Journal of Physical Chemistry C. 125:2240-2249
We study the temporal, spatial, and spectral evolution of charge carriers in hybrid perovskite thin films after optical excitation with a small laser spot. These are conditions typical of microscop...
Publikováno v:
Physical Chemistry of Semiconductor Materials and Interfaces IX.
Hybrid inorganic-organic perovskites stand out as unique photovoltaic materials due to their exceptional optical and electronic properties. Here, we study in-plane carrier diffusion in perovskite thin films via time-resolved imaging of the photolumin
Autor:
Stéphane Kéna-Cohen, Hyeon Hwang, Nakita K. Noel, Soroush Hafezian, Barry P. Rand, Aravindan Sridharan
Publikováno v:
Physical Review Materials. 3
Owing to their exceptional semiconducting properties, hybrid inorganic-organic perovskites show great promise as photovoltaic absorbers. In these materials, long-range diffusion of charge carriers allows for most of the photogenerated carriers to con
Publikováno v:
ACS Photonics. 5:2921-2927
In organic photodiodes (OPDs) light is absorbed by excitons, which dissociate to generate photocurrent. Here, we demonstrate a novel type of OPD in which light is absorbed by polaritons, hybrid light-matter states. We demonstrate polariton OPDs opera
Autor:
Husam N. Alshareef, D. H. Nagaraju, Aravindan Sridharan, Omar F. Mohammed, Shawkat M. Aly, Manas R. Parida, Erkki Alarousu
Publikováno v:
Physical Chemistry Chemical Physics. 17:14513-14517
Controlling the electron transfer process at donor-acceptor interfaces is a research direction that has not yet seen much progress. Here, with careful control of the charge localization on the porphyrin macrocycle using β-cyclodextrin as an external
Autor:
Ruxin Li, See Leang Chin, Jiansheng Liu, Aravindan Sridharan, Jingjing Ju, Zhizhan Xu, Tie-Jun Wang, Cheng Wang, Haiyi Sun
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 88(6)
1 kHz, 2 mJ, 45 fs, 800 nm laser pulses were fired into a laboratory diffusion cloud chamber through a subsaturated zone (relative humidity \ensuremath{\sim}73$%$, $T$ \ensuremath{\sim} 4.3 \ifmmode^\circ\else\textdegree\fi{}C). After 60 min of laser
Publikováno v:
Optics letters. 37(10)
Water vapor fluorescence in air induced by femtosecond laser filaments was systematically investigated. The fluorescence signal intensity was found to be linearly proportional to the water vapor concentration, which opens up the possibility of absolu
Autor:
Zuyan Xu, A. Grégoire, Tie-Jun Wang, Jingjing Ju, Denis Boudreau, See Leang Chin, Renfu Li, Aravindan Sridharan, Jiaxing Liu
Publikováno v:
Laser Physics Letters. 10:125301
We have demonstrated experimentally that firing a laser filament in a subsaturated zone of a cloud chamber of inversed temperature profile could induce water condensation. Initially, through ion chromatography performed on samples collected from a re
Autor:
Tie-Jun Wang, Aravindan Sridharan, See Leang Chin, Y Teranishi, Sheng Hsien Lin, Heping Zeng, Shuai Yuan
Publikováno v:
Applied Physics Letters. 102:224102
The water vapor fluorescence in air from filaments generated by intense ultrashort Ti:sapphire laser pulses is experimentally studied. The backscattered fluorescence from OH shows an exponential increase with increasing filament length, indicating am