Surface pre-optimization of a mixed halide perovskite toward high photoluminescence quantum yield in the blue spectrum range

Nanoscale ◽  
2019 ◽  
Vol 11 (32) ◽  
pp. 15206-15215 ◽  
Author(s):  
Chao Luo ◽  
Wen Li ◽  
Da Xiong ◽  
Ji Fu ◽  
Weiqing Yang
Keyword(s):  
Quantum Yield ◽  
Quantum Yields ◽  
Next Generation ◽  
High Definition ◽  
Spectrum Range ◽  
Photoluminescence Quantum Yield ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Spectral Ranges

The photoluminescence quantum yields (PLQYs) of all-inorganic halide perovskites in the green and red spectral ranges have approached over 90%, overwhelmingly arousing burgeoning interests for next-generation high-definition displays.

scholarly journals Standards for photoluminescence quantum yield measurements in solution (IUPAC Technical Report)

2011 ◽  
Vol 83 (12) ◽  
pp. 2213-2228 ◽  
Author(s):  
Albert M. Brouwer
Keyword(s):  
Quantum Yield ◽  
Future Development ◽  
Recent Literature ◽  
Quantum Yields ◽  
Dilute Solutions ◽  
Large Group ◽  
Near Ir ◽  
Photoluminescence Quantum Yield ◽  
Technical Report ◽  
Spectral Ranges

The use of standards for the measurement of photoluminescence quantum yields (QYs) in dilute solutions is reviewed. Only three standards can be considered well established. Another group of six standards has been investigated by several independent researchers. A large group of standards is frequently used in recent literature, but the validity of these is less certain. The needs for future development comprise: (i) confirmation of the validity of the QY values of many commonly used standard materials, preferably in the form of SI traceable standards; (ii) extension of the set of standard materials to the UV and near-IR spectral ranges; and (iii) good standards or robust protocols for the measurements of low QYs.

Highly Emissive Halide Perovskite Nanocrystals: From Lead to Lead-Free

CrystEngComm ◽  
2021 ◽  
Author(s):  
Chunlong Li ◽  
Jie Li ◽  
Zhengping Li ◽  
Huayong Zhang ◽  
Yangyang Dang ◽  
...  
Keyword(s):  
Charge Carriers ◽  
Lead Free ◽  
Quantum Yields ◽  
Local Management ◽  
Perovskite Nanocrystals ◽  
Halide Perovskites ◽  
Halide Perovskite

Nanostructured halide perovskites have highly yielded record LEDs due to their higher versatility in the local management of charge carriers, which has enabled photoluminescence quantum yields (PLQYs) close to 100%....

scholarly journals Increasing Photoluminescence Quantum Yield by Nanophotonic Design of Quantum-Confined Halide Perovskite Nanowire Arrays

Nano Letters ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 2850-2857 ◽  
Author(s):  
Daquan Zhang ◽  
Leilei Gu ◽  
Qianpeng Zhang ◽  
Yuanjing Lin ◽  
Der-Hsien Lien ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Nanowire Arrays ◽  
Photoluminescence Quantum Yield ◽  
Halide Perovskite ◽  
Quantum Confined

Organo metal halide perovskites effectively photosensitize the production of singlet oxygen (1Δg)

2019 ◽  
Vol 55 (87) ◽  
pp. 13100-13103 ◽  
Author(s):  
Xian-Fu Zhang ◽  
Baomin Xu
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Singlet Oxygen ◽  
Metal Halide ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Halide Perovskites ◽  
Halide Perovskite

Metal halide perovskite quantum dots effectively generate singlet oxygen with a quantum yield of 0.34, the highest among nano semiconductor/nano metal photosensitizers.

Quantification of Anisotropy-Related Uncertainties in Relative Photoluminescence Quantum Yield Measurements of Nanomaterials – Semiconductor Quantum Dots and Rods

2015 ◽  
Vol 229 (1-2) ◽  
Author(s):  
Christian Würth ◽  
Daniel Geißler ◽  
Ute Resch-Genger
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Semiconductor Quantum Dots ◽  
Quantum Yields ◽  
Photoluminescence Quantum Yield

AbstractIn order to assess the anisotropy-related uncertainties of relatively determined photoluminescence quantum yields (

Room-Temperature Construction of Mixed-Halide Perovskite Quantum Dots with High Photoluminescence Quantum Yield

2018 ◽  
Vol 122 (9) ◽  
pp. 5151-5160 ◽  
Author(s):  
Chenghao Bi ◽  
Shixun Wang ◽  
Wen Wen ◽  
Jifeng Yuan ◽  
Guozhong Cao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Room Temperature ◽  
Photoluminescence Quantum Yield ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite

scholarly journals High External Photoluminescence Quantum Yield in Tin Halide Perovskite Thin Films

2021 ◽  
Vol 6 (2) ◽  
pp. 609-611
Author(s):  
Isabella Poli ◽  
Guan-Woo Kim ◽  
E Laine Wong ◽  
Antonella Treglia ◽  
Giulia Folpini ◽  
...  
Keyword(s):  
Thin Films ◽  
Quantum Yield ◽  
Photoluminescence Quantum Yield ◽  
Halide Perovskite

scholarly journals A Highly Fluorescent Dinuclear Aluminium Complex with Near-Unity Quantum Yield

2021 ◽  
Author(s):  
Flavio Luis Portwich ◽  
Yves Carstensen ◽  
Anindita Dasgupta ◽  
Stephan Kupfer ◽  
Ralf Wyrwa ◽  
...  
Keyword(s):  
Excited State ◽  
Quantum Yield ◽  
Quantum Yields ◽  
Photoluminescence Properties ◽  
Excited State Lifetime ◽  
One Pot ◽  
Nonwoven Fabrics ◽  
Enhanced Photoluminescence ◽  
Photoluminescence Quantum Yield ◽  
Optical Applications

The high natural abundance of aluminium makes the respective fluorophores attractive for various optical applications, but photoluminescence quantum yields above 0.7 have yet not been reported for solutions of aluminium complexes. In this contribution, a dinuclear aluminium(III) complex featuring enhanced photoluminescence properties is described. Its facile one-pot synthesis originates from a readily available precursor and trimethyl aluminium. In solution, the complex exhibits an unprecedented photoluminescence quantum yield near unity (Φabsolute 1.0 ± 0.1) and an excited-state lifetime of 2.3 ns. In the solid state, J-aggregation and aggregation-caused quenching are noticed, but still quantum yields of 0.6 are observed. Embedding the complex in electrospun nonwoven fabrics yields a highly fluorescent fleece possessing a quantum yield of 0.9 ± 0.04.

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