Optical microcavities using highly luminescent films of semiconductor nanocrystals

2000 ◽  
Vol 77 (16) ◽  
pp. 2500-2502 ◽  
Author(s):  
Chris E. Finlayson ◽  
David S. Ginger ◽  
Neil C. Greenham
Keyword(s):  
Semiconductor Nanocrystals ◽  
Optical Microcavities ◽  
Luminescent Films

Spectroscopy: Gain Spectroscopy of Solution-Based Semiconductor Nanocrystals in Tunable Optical Microcavities (Advanced Optical Materials 2/2016)

2016 ◽  
Vol 4 (2) ◽  
pp. 187-187
Author(s):  
Robin K. Patel ◽  
Aurélien A. P. Trichet ◽  
David M. Coles ◽  
Philip R. Dolan ◽  
Simon M. Fairclough ◽  
...  
Keyword(s):  
Optical Materials ◽  
Semiconductor Nanocrystals ◽  
Optical Microcavities

scholarly journals Gain Spectroscopy of Solution-Based Semiconductor Nanocrystals in Tunable Optical Microcavities

2015 ◽  
Vol 4 (2) ◽  
pp. 285-290 ◽  
Author(s):  
Robin K. Patel ◽  
Aurélien A. P. Trichet ◽  
David M. Coles ◽  
Philip R. Dolan ◽  
Simon M. Fairclough ◽  
...  
Keyword(s):  
Semiconductor Nanocrystals ◽  
Optical Microcavities

Spins in Semiconductor Nanocrystals

Priroda ◽  
2018 ◽  
pp. 22-31
Author(s):  
A. Rodina ◽  
◽  
D. Yakovlev ◽  
Keyword(s):  
Semiconductor Nanocrystals

Luminescent films employing quantum dot-cellulose nanocrystal hybrid nanomaterials

2021 ◽  
Vol 294 ◽  
pp. 129737
Author(s):  
Xinmei Liu ◽  
Farsad Imtiaz Chowdhury ◽  
Lingju Meng ◽  
Qiwei Xu ◽  
Xihua Wang
Keyword(s):  
Quantum Dot ◽  
Cellulose Nanocrystal ◽  
Hybrid Nanomaterials ◽  
Luminescent Films

scholarly journals Dynamic lattice distortions driven by surface trapping in semiconductor nanocrystals

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Burak Guzelturk ◽  
Benjamin L. Cotts ◽  
Dipti Jasrasaria ◽  
John P. Philbin ◽  
David A. Hanifi ◽  
...  
Keyword(s):  
Photon Energy ◽  
Semiconductor Nanocrystals ◽  
Atomic Scale ◽  
Atomistic Simulations ◽  
Shell System ◽  
Structural Distortions ◽  
Colloidal Semiconductor Nanocrystals ◽  
Femtosecond Electron Diffraction ◽  
Structural Deformations ◽  
Nonradiative Processes

AbstractNonradiative processes limit optoelectronic functionality of nanocrystals and curb their device performance. Nevertheless, the dynamic structural origins of nonradiative relaxations in such materials are not understood. Here, femtosecond electron diffraction measurements corroborated by atomistic simulations uncover transient lattice deformations accompanying radiationless electronic processes in colloidal semiconductor nanocrystals. Investigation of the excitation energy dependence in a core/shell system shows that hot carriers created by a photon energy considerably larger than the bandgap induce structural distortions at nanocrystal surfaces on few picosecond timescales associated with the localization of trapped holes. On the other hand, carriers created by a photon energy close to the bandgap of the core in the same system result in transient lattice heating that occurs on a much longer 200 picosecond timescale, dominated by an Auger heating mechanism. Elucidation of the structural deformations associated with the surface trapping of hot holes provides atomic-scale insights into the mechanisms deteriorating optoelectronic performance and a pathway towards minimizing these losses in nanocrystal devices.

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