scholarly journals Highly stable, luminescent core–shell type methylammonium–octylammonium lead bromide layered perovskite nanoparticles

2016 ◽  
Vol 52 (44) ◽  
pp. 7118-7121 ◽  
Author(s):  
Saikat Bhaumik ◽  
Sjoerd A. Veldhuis ◽  
Yan Fong Ng ◽  
Mingjie Li ◽  
Subas Kumar Muduli ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Layered Perovskite ◽  
Core Shell ◽  
Photoluminescence Quantum Yield ◽  
Shell Type ◽  
Lead Bromide ◽  
Perovskite Nanoparticles

Perovskite–perovskite core–shell type nanoparticles with a high photoluminescence quantum yield and long term ambient stability.

scholarly journals Engineering Sr-doping for enabling long-term stable FAPb1−xSrxI3 quantum dots with 100% photoluminescence quantum yield

2021 ◽  
Vol 9 (5) ◽  
pp. 1555-1566
Author(s):  
Andrés F. Gualdrón-Reyes ◽  
David F. Macias-Pinilla ◽  
Sofia Masi ◽  
Carlos Echeverría-Arrondo ◽  
Said Agouram ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Toxic Metals ◽  
Environmentally Friendly ◽  
Photoluminescence Quantum Yield ◽  
Improved Performance ◽  
Pb Substitution

The Pb substitution in quantum dots (PQDs) with lesser toxic metals has been widely searched to be environmentally friendly, and be of comparable or improved performance compared to the lead-perovskite.

scholarly journals Industrially scalable and cost-effective Mn2+ doped ZnxCd1−xS/ZnS nanocrystals with 70% photoluminescence quantum yield, as efficient down-shifting materials in photovoltaics

2016 ◽  
Vol 9 (3) ◽  
pp. 1083-1094 ◽  
Author(s):  
I. Levchuk ◽  
C. Würth ◽  
F. Krause ◽  
A. Osvet ◽  
M. Batentschuk ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Cost Effective ◽  
Core Shell ◽  
Photoluminescence Quantum Yield ◽  
Zns Nanocrystals

We present colloidally stable and highly luminescent ZnxCd1–xS:Mn/ZnS core–shell nanocrystals (NCs) as cost-effective light converters for silicon photovoltaic (PV).

Green-Emitting CePO4:Tb/LaPO4 Core–Shell Nanoparticles with 70 % Photoluminescence Quantum Yield

2003 ◽  
Vol 42 (44) ◽  
pp. 5513-5516 ◽  
Author(s):  
Karsten Kömpe ◽  
Holger Borchert ◽  
Jörg Storz ◽  
Arun Lobo ◽  
Sorin Adam ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Photoluminescence Quantum Yield ◽  
Core Shell Nanoparticles

Green-Emitting CePO4:Tb/LaPO4 Core-Shell Nanoparticles with 70% Photoluminescence Quantum Yield.

ChemInform ◽  
2004 ◽  
Vol 35 (5) ◽  
Author(s):  
Karsten Koempe ◽  
Holger Borchert ◽  
Joerg Storz ◽  
Arun Lobo ◽  
Sorin Adam ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Photoluminescence Quantum Yield ◽  
Core Shell Nanoparticles

scholarly journals Near-Unity Photoluminescence Quantum Yield in CsPbBr3 Nanocrystal Solid-State Films via Postsynthesis Treatment with Lead Bromide

2017 ◽  
Vol 29 (18) ◽  
pp. 7663-7667 ◽  
Author(s):  
Francesco Di Stasio ◽  
Sotirios Christodoulou ◽  
Nengjie Huo ◽  
Gerasimos Konstantatos
Keyword(s):  
Solid State ◽  
Quantum Yield ◽  
Photoluminescence Quantum Yield ◽  
Lead Bromide

Colloidal Synthesis and Properties of InAs/InP and InAs/CdSe Core/Shell Nanocrystals

1999 ◽  
Vol 571 ◽  
Author(s):  
Yun-Wei Cao ◽  
Julia Aksenton ◽  
Victor Soloviev ◽  
Uri Banin
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Photoelectron Spectroscopy ◽  
Shell Growth ◽  
Band Gap Energy ◽  
Colloidal Synthesis ◽  
Core Shell ◽  
Cdse Core ◽  
X Ray ◽  
Photoluminescence Quantum Yield

ABSTRACTHigh-temperature colloidal synthesis of InAs/InP and InAs/CdSe core/shell nanocrystal quantum dots is reported. InP and CdSe shells with several thicknesses were grown on InAs cores ranging in diameter between 20 to 50 Å. Optical spectra, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and X-ray diffraction (XRD) were used to analyze the core/shell quantum dots and determine their chemical composition, average size, size distributions, and structures. The experimental results indicate that shell growth is uniform, expitaxial, and controllable. For both InP and CdSe shells, growth is accompanied by a red shift of the band gap energy as a result of the extension of the electron wavefunction into the shell region. An increase of the room temperature photoluminescence quantum yield by a factor of∼4 is observed with CdSe shell growth on InAs Cores. The growth of InP shells, however, quenches the photoluminescence quantum yield. The difference is assigned to outer surface effects in core/shell nanocrystals.

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