Vishnu E K
@vishnuek_
Followers
708
Following
9K
Media
19
Statuses
2K
Post-doctoral researcher @Uni_Wue | Alumni @KGT_Lab | Visiting research fellow @NSL_lab @excitonscience | co-organizer @NiNC_Seminar
Würzburg, Germany
Joined May 2012
Happy to share that our latest work has been published in @NanoLetters ! 🎉 Facet engineering in perovskite nanocrystals boosts two-photon emission! 🔬🌟 @KGT_Lab @npiacs @tvmiiser @iacskolkata @PicoQuant @timi_titus12 @sumitkumardutt8 @GaraiArghyadeep
https://t.co/3cnnPLKqgX
pubs.acs.org
The metal halide perovskite nanocrystals exhibit a remarkable tolerance to midgap defect states, resulting in high photoluminescence quantum yields. However, the potential of these nanocrystals for...
8
8
64
Advancing scalable colloidal quantum light sources https://t.co/RTyeY0i3cO
pubs.acs.org
Beyond single-photon emission, generating correlated N-photon bundles, e.g., a photon pair, is essential for various quantum technologies including quantum teleportation and metrology. A widely...
0
3
17
For Master students at the Ludwig-Maximilians-Universität München, we have a few nice projects avaible, come join us! See also https://t.co/H6bxkxUfON
6
5
11
This year marks the 25th anniversary of Nano Letters. To celebrate this milestone, the Nano Letters editorial team put together a prospective piece reflecting on advancements in the field over the next 25 years. Read the Editorial 👉 https://t.co/saNQOzm9LZ
1
10
24
Heartiest congratulations to our MS16 alumnus Ajay Jayachandran on defending his PhD thesis from @Uni_WUE working with Tobias Brixner on fluorescence-detected coherent spectroscopy. Ajay did his MS thesis with us, coauthored 2 papers (in JPC A & B). @DCS_IISERMOHALI @IiserMohali
1
2
21
Very happy to share our latest work on the photophysics of polaritonic states... Congratulations Dr. Jhuma Dutta for this wonderful piece of work! - Advanced Optical Materials - Wiley Online Library https://t.co/aO1DzGdPzC
@IiserMohali @DCS_IISERMOHALI
5
3
43
Just out in @J_A_C_S - where we employ a side chain-crowding strategy to construct 2D hydrogen-bonded wavy sheets. Grateful to Prof @ChenfengKe, @Jayanta_000 , Prof. Birman, and Xinyu for the support.
pubs.acs.org
We report a side chain-crowding strategy to direct the self-assembly of hydrogen-bonded semicarbazone macrocycles into porous organic frameworks with tunable curvatures and exceptional acetone uptake...
8
12
74
Happy to share our recent work published in Angew. Chem. Int. Ed. Here we illustrate the tuning and enhancement of chirality in optically active bimetallic clusters leading to highest dissymmetry values in this class of materials. @angew_chem
https://t.co/9Tgt14E0Ws
15
9
133
Our latest work explores the hidden role of interchromophoric Interactions in determining the sign of bisignated CD signals, is now out in @JPhysChem. Congratulations @Sujith83535752, @AiswaryaE3, and our collaborators for the wonderful work👏 @tvmiiser
https://t.co/DU2sIDFSlT
pubs.acs.org
In chiral assemblies, the transition dipole moments of the individual molecules are arranged obliquely, leading to the appearance of two absorption bands and a bisignation in the circular dichroism...
3
11
72
From detailed synthesis strategies to post-synthetic tweaks, ensemble & single-particle photo-physics, and real-world applications. Check out our latest review @ACSEnergyLett. https://t.co/kRhmIGQK4x Congratulations to @DevikaRajan17 @manoj_bhaskarn @Swathik97 @ AnoopThomas 👏
pubs.acs.org
The once-undisputed dominance of heavy metal (e.g., cadmium and lead)-based quantum dots (QDs), driven by their excellent optical and functional characteristics, is now challenged by environmental...
7
11
65
Here, we show the dynamic control of a photoisomerization reaction triggered by light-matter state. One can speed up or slow down a photochemical process by strong coupling...@DCS_IISERMOHALI
@IiserMohali
https://t.co/pwpulNYzTY
nature.com
Communications Chemistry - Strong light-matter interactions demonstrated considerable potential to control photochemical reactions, but further experimental testing is needed. Here, the authors...
4
4
69
Excited to share in @Nature today: Broadband transient full-Stokes luminescence spectroscopy - detecting the most subtle changes in light polarization over time with unprecedented sensitivity. Grateful for the team that made this possible!😊 @EPFL_en
nature.com
Nature - A high-sensitivity, broadband, transient, full-Stokes spectroscopy setup is demonstrated, which can detect quickly varying small signals from chiral emitters.
23
15
221
4 PhD Positions in Nanosciences!!! Please retweet!!! https://t.co/tNG6RQrnHb
0
81
159
Core@Shell AgBr@CsPbBr3 Nanocrystals as Precursors to Hollow Lead Halide Perovskite Nanocubes https://t.co/H6iOGk9zQQ
pubs.acs.org
We report the synthesis of colloidal core@shell AgBr@CsPbBr3 nanocubes by a one-pot approach, where the nucleation and growth of AgBr nanocrystals occurs rapidly after the injection of chemical...
1
11
72
New review on all things “Photoluminescence microscopy of optoelectronic materials” in @MethodsPrimers led by @StranksLab postdoc Dr. Zimu Wei. https://t.co/JIEPDGWue5
nature.com
Nature Reviews Methods Primers - Photoluminescence microscopy can give information on the electronic properties of optoelectronic materials and thus the performance of optoelectronic devices. In...
1
4
30
Check out our study on Spring-Like Behavior in [8]Helicene Diimides! @ERC_Research @ChemRxiv Spring-Like Behavior in [8]Helicene Diimides: How Helical Pitch Governs Optical Anisotropy and Electronic Conjugation | ChemRxiv - https://t.co/kt6EG7u9Q7
8
27
166
If you want to get an overview about all the different flavours of PL microscopy and important aspects relevant for the study of optoelectronic materials, check out the new work https://t.co/WOyT8Sri9B - great collaboration with the Cambridge crew from @StranksLab
nature.com
Nature Reviews Methods Primers - Photoluminescence microscopy can give information on the electronic properties of optoelectronic materials and thus the performance of optoelectronic devices. In...
0
6
33
We're developing new generation opto-electronic devices based on polaritons in the following areas: 1. Quantum transport. 2. Quantum sensing. 3. Single photon emission based on cavity QED. Please contact us if you are interested... https://t.co/oqIsHP9H0r
0
1
9
Red Ag-Based I–III–VI Quantum Dots as Competitive Alternatives to InP Emitters | ACS Energy Letters
pubs.acs.org
Heavy metal-free I–III–VI quantum dots (QDs), particularly those incorporating Ag and Cu, are promising ecofriendly alternatives to Cd- and Pb-based QDs. Yet, achieving both high photoluminescence...
0
2
11