Search Results - "Baruj, Hamed Dehghanpour"
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Deep‐Red‐Emitting Colloidal Quantum Well Light‐Emitting Diodes Enabled through a Complex Design of Core/Crown/Double Shell Heterostructure
Published in Small (Weinheim an der Bergstrasse, Germany) (01-02-2022)“…Extending the emission peak wavelength of quasi‐2D colloidal quantum wells has been an important quest to fully exploit the potential of these materials, which…”
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Ultrahigh Green and Red Optical Gain Cross Sections from Solutions of Colloidal Quantum Well Heterostructures
Published in The journal of physical chemistry letters (11-03-2021)“…We demonstrate amplified spontaneous emission (ASE) in solution with ultralow thresholds of 30 μJ/cm2 in red and of 44 μJ/cm2 in green from engineered…”
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Gradient Type‐II CdSe/CdSeTe/CdTe Core/Crown/Crown Heteronanoplatelets with Asymmetric Shape and Disproportional Excitonic Properties
Published in Small (Weinheim an der Bergstrasse, Germany) (01-03-2023)“…Characterized by their strong 1D confinement and long‐lifetime red‐shifted emission spectra, colloidal nanoplatelets (NPLs) with type‐II electronic structure…”
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Highly‐Directional, Highly‐Efficient Solution‐Processed Light‐Emitting Diodes of All‐Face‐Down Oriented Colloidal Quantum Well Self‐Assembly
Published in Small (Weinheim an der Bergstrasse, Germany) (01-07-2023)“…Semiconductor colloidal quantum wells (CQWs) provide anisotropic emission behavior originating from their anisotropic optical transition dipole moments (TDMs)…”
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“Giant” Colloidal Quantum Well Heterostructures of CdSe@CdS Core@Shell Nanoplatelets from 9.5 to 17.5 Monolayers in Thickness Enabling Ultra‐High Gain Lasing (Small 38/2024)
Published in Small (Weinheim an der Bergstrasse, Germany) (19-09-2024)“…Colloidal Quantum Wells “Giant” CdSe@CdS colloidal quantum wells having thicknesses of 9.5 to 17.5 monolayers enable ultra‐high material gain coefficient…”
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“Giant” Colloidal Quantum Well Heterostructures of CdSe@CdS Core@Shell Nanoplatelets from 9.5 to 17.5 Monolayers in Thickness Enabling Ultra‐High Gain Lasing
Published in Small (Weinheim an der Bergstrasse, Germany) (01-09-2024)“…Semiconductor colloidal quantum wells (CQWs) have emerged as a promising class of gain materials to be used in colloidal lasers. Although low gain thresholds…”
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Ultralow Threshold Optical Gain Enabled by Quantum Rings of Inverted Type‐I CdS/CdSe Core/Crown Nanoplatelets in the Blue
Published in Advanced optical materials (01-04-2021)“…Achieving low‐threshold optical gain for solution‐processed materials is crucial for their real‐life applications and deployment as gain media. However, the…”
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Highly‐Directional, Highly‐Efficient Solution‐Processed Light‐Emitting Diodes of All‐Face‐Down Oriented Colloidal Quantum Well Self‐Assembly (Small 29/2023)
Published in Small (Weinheim an der Bergstrasse, Germany) (01-07-2023)“…All‐Solution‐Processed Light‐Emitting Diodes In article number 2206582, Hilmi Volkan Demir and co‐workers propose all solution‐processed light‐emitting diodes…”
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Gradient Type‐II CdSe/CdSeTe/CdTe Core/Crown/Crown Heteronanoplatelets with Asymmetric Shape and Disproportional Excitonic Properties (Small 11/2023)
Published in Small (Weinheim an der Bergstrasse, Germany) (15-03-2023)“…Multi‐Crown Type‐II Nanoplatelets In article number 2205729, Hilmi Volkan Demir and co‐workers discuss the recombination dynamics of CdSe/CdSeTe/CdTe…”
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Modulating Emission Properties in a Host–Guest Colloidal Quantum Well Superlattice
Published in Advanced optical materials (01-02-2022)“…Self‐assembly of colloidal nanocrystals into ordered superlattices is a powerful approach to enable novel collective properties which are not available in…”
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Solution-Processed Light-Emitting Diodes of Monolayers of Colloidal Quantum Wells
Published 01-01-2022“…Semiconductor colloidal quantum wells (CQWs) make an exciting quasi-2D class of nanocrystals thanks to their unique properties emerging from their…”
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Dissertation -
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Modulating Emission Properties in a Host–Guest Colloidal Quantum Well Superlattice (Advanced Optical Materials 4/2022)
Published in Advanced optical materials (01-02-2022)“…A novel strategy to modulate the emission color and anisotropy in a host–guest colloidal quantum well superlattice is successfully demonstrated through…”
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Blue-Emitting CdSe Nanoplatelets Enabled by Sulfur-Alloyed Heterostructures for Light-Emitting Diodes with Low Turn-on Voltage
Published in ACS applied nano materials (28-01-2022)“…Colloidal nanoplatelets (NPLs) have emerged as the last class of semiconductor nanocrystals for their potential optoelectronic applications. The…”
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Highly-directional, highly-efficient solution-processed light-emitting diodes of all-face-down oriented colloidal quantum wells
Published 21-01-2022“…Semiconductor colloidal quantum wells (CQWs) make an exciting quasi-2D class of nanocrystals thanks to their unique properties including their highly…”
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Journal Article