Quantitative electrochemical control over optical gain in colloidal quantum-dot and quantum-well solids

2020 ◽  
Author(s):  
Jaco Geuchies ◽  
Baldur Brynjarsson ◽  
Gianluca Grimaldi ◽  
Indy Du Fossé ◽  
Robbert Dijkhuizen ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Quantum Well ◽  
Optical Gain ◽  
Electrochemical Control ◽  
Colloidal Quantum Dot

scholarly journals Ultralow Threshold One-Photon- and Two-Photon-Pumped Optical Gain Media of Blue-Emitting Colloidal Quantum Dot Films

2014 ◽  
Vol 5 (13) ◽  
pp. 2214-2218 ◽  
Author(s):  
Burak Guzelturk ◽  
Yusuf Kelestemur ◽  
Mehmet Zafer Akgul ◽  
Vijay Kumar Sharma ◽  
Hilmi Volkan Demir
Keyword(s):  
Quantum Dot ◽  
Optical Gain ◽  
Two Photon ◽  
Colloidal Quantum Dot ◽  
Gain Media

scholarly journals Emergence of Impurity-Doped Nanocrystal Light-Emitting Diodes

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1226
Author(s):  
Dongxiang Luo ◽  
Lin Wang ◽  
Ying Qiu ◽  
Runda Huang ◽  
Baiquan Liu
Keyword(s):  
Quantum Dot ◽  
Quantum Well ◽  
High Performance ◽  
Light Emitting Diodes ◽  
State Of The Art ◽  
Material Design ◽  
Light Emitting ◽  
Impurity Doped ◽  
Colloidal Quantum Dot ◽  
Increasing Demand

In recent years, impurity-doped nanocrystal light-emitting diodes (LEDs) have aroused both academic and industrial interest since they are highly promising to satisfy the increasing demand of display, lighting, and signaling technologies. Compared with undoped counterparts, impurity-doped nanocrystal LEDs have been demonstrated to possess many extraordinary characteristics including enhanced efficiency, increased luminance, reduced voltage, and prolonged stability. In this review, recent state-of-the-art concepts to achieve high-performance impurity-doped nanocrystal LEDs are summarized. Firstly, the fundamental concepts of impurity-doped nanocrystal LEDs are presented. Then, the strategies to enhance the performance of impurity-doped nanocrystal LEDs via both material design and device engineering are introduced. In particular, the emergence of three types of impurity-doped nanocrystal LEDs is comprehensively highlighted, namely impurity-doped colloidal quantum dot LEDs, impurity-doped perovskite LEDs, and impurity-doped colloidal quantum well LEDs. At last, the challenges and the opportunities to further improve the performance of impurity-doped nanocrystal LEDs are described.

scholarly journals Quantitative Electrochemical Control over Optical Gain in Quantum-Dot Solids

ACS Nano ◽  
2020 ◽  
Author(s):  
Jaco J. Geuchies ◽  
Baldur Brynjarsson ◽  
Gianluca Grimaldi ◽  
Solrun Gudjonsdottir ◽  
Ward van der Stam ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Optical Gain ◽  
Electrochemical Control

Stimulated emission in red, green, and blue from colloidal quantum dot films by single exciton optical gain

2012 ◽  
Author(s):  
Cuong Dang ◽  
Kwangdong Roh ◽  
Joonhee Lee ◽  
Craig Breen ◽  
Jonathan S. Steckel ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Optical Gain ◽  
Stimulated Emission ◽  
Colloidal Quantum Dot

Excitonic Enhanced Optical Gain Of GaN/AlGaN Quantum Wells With Localized States

1997 ◽  
Vol 482 ◽  
Author(s):  
Takeshi Uenoyama
Keyword(s):  
Quantum Dot ◽  
Quantum Well ◽  
Quantum Wells ◽  
Carrier Density ◽  
Optical Gain ◽  
Localized States ◽  
Many Body ◽  
Quantum Well Structures ◽  
The Many ◽  
Temperature Green’S Function

AbstractWe have evaluated the optical gain of GaN/AlGaN quantum well structures with localized states, taking into account the Coulomb interaction. The localized states axe introduced in the well as quantum dot-like subband states. We have used the temperature Green's function formalism to treat the many-body effects and have found a new excitonic enhancement of the optical gain involved the localized states. This enhancement is stronger than the conventional Coulomb enhancement. It might play an important role to reduce the threshold carrier density.

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