scholarly journals Long-term ambient air-stable cubic CsPbBr3 perovskite quantum dots using molecular bromine

2019 ◽  
Vol 1 (9) ◽  
pp. 3388-3391 ◽  
Author(s):  
Surakcha Thapa ◽  
Karishma Bhardwaj ◽  
Siddhant Basel ◽  
Sajan Pradhan ◽  
Charlotte J. Eling ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Decisive Role ◽  
Ambient Air ◽  
Molecular Bromine ◽  
Perovskite Nanocrystals ◽  
Perovskite Quantum Dots

Temperature and precursor-controlled in situ generated, oleylammonium halide species from molecular bromine and amine plays decisive role in the synthesis of long-term ambient stable and emission tunable CsPbBr3 perovskite nanocrystals.

Efficient and stable CsPbI3 perovskite quantum dots enabled by in situ ytterbium doping for photovoltaic applications

2019 ◽  
Vol 7 (36) ◽  
pp. 20936-20944 ◽  
Author(s):  
Junwei Shi ◽  
Fangchao Li ◽  
Jianyu Yuan ◽  
Xufeng Ling ◽  
Sijie Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Perovskite Nanocrystals ◽  
Photovoltaic Applications ◽  
Perovskite Quantum Dots ◽  
Optoelectronic Applications ◽  
Ytterbium Doping

Colloidal perovskite nanocrystals, or quantum dots (QDs), have quickly emerged and exhibited unique opportunities for optoelectronic applications.

P‐101: In‐situ Fabrication Strategy of Perovskite Quantum Dots for Novel Display Technology

2020 ◽  
Vol 51 (1) ◽  
pp. 1743-1744
Author(s):  
Zelong Bai ◽  
Jing Li ◽  
Tao Zhang ◽  
Fei Li ◽  
Ruikuo Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
In Situ Fabrication ◽  
Perovskite Quantum Dots ◽  
Display Technology

In Situ Ligand Bonding Management of CsPbI 3 Perovskite Quantum Dots Enables High‐Performance Photovoltaics and Red Light‐Emitting Diodes

2020 ◽  
Vol 59 (49) ◽  
pp. 22230-22237 ◽  
Author(s):  
Junwei Shi ◽  
Fangchao Li ◽  
Yan Jin ◽  
Cheng Liu ◽  
Ben Cohen‐Kleinstein ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Light Emitting ◽  
Perovskite Quantum Dots

Perovskite quantum dots growth in situ in transparent medium for short wavelength shielding

2020 ◽  
Vol 103 (8) ◽  
pp. 4150-4158 ◽  
Author(s):  
Ze Yang ◽  
Lei Zhao ◽  
Moxiang Li ◽  
Qihua Yang ◽  
Zhaohui Fang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Short Wavelength ◽  
Transparent Medium ◽  
Perovskite Quantum Dots

scholarly journals Efficient and Tunable Electroluminescence from In Situ Synthesized Perovskite Quantum Dots

Small ◽  
2019 ◽  
Vol 15 (8) ◽  
pp. 1804947 ◽  
Author(s):  
Hongling Yu ◽  
Heyong Wang ◽  
Jiangbin Zhang ◽  
Jun Lu ◽  
Zhongcheng Yuan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Perovskite Quantum Dots

Promoting photoluminescence quantum yields of glass-stabilized CsPbX3 (X = Cl, Br, I) perovskite quantum dots through fluorine doping

Nanoscale ◽  
2019 ◽  
Vol 11 (37) ◽  
pp. 17216-17221 ◽  
Author(s):  
Daqin Chen ◽  
Yue Liu ◽  
Changbin Yang ◽  
Jiasong Zhong ◽  
Su Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yields ◽  
Fluorine Doping ◽  
Glass Crystallization ◽  
Perovskite Quantum Dots

Highly luminescent glass-stabilized CsPbX3 (X = Cl, Br, I) perovskite QDs are fabricated via an in situ glass crystallization strategy and fluorine doping.

Room-temperature and gram-scale synthesis of CsPbX3 (X = Cl, Br, I) perovskite nanocrystals with 50–85% photoluminescence quantum yields

2016 ◽  
Vol 52 (45) ◽  
pp. 7265-7268 ◽  
Author(s):  
Song Wei ◽  
Yanchun Yang ◽  
Xiaojiao Kang ◽  
Lan Wang ◽  
Lijian Huang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Quantum Yields ◽  
Perovskite Nanocrystals ◽  
Perovskite Quantum Dots

CsPbX3 perovskite quantum dots with 50–85% photoluminescence quantum yields have been successfully synthesized at room temperature in open air.

scholarly journals Temporary pause in the growth of atmospheric ethane and propane in 2015–2018

2021 ◽  
Vol 21 (19) ◽  
pp. 15153-15170
Author(s):  
Hélène Angot ◽  
Connor Davel ◽  
Christine Wiedinmyer ◽  
Gabrielle Pétron ◽  
Jashan Chopra ◽  
...  
Keyword(s):  
Organic Aerosols ◽  
Ambient Air ◽  
Potential Contribution ◽  
Emission Inventories ◽  
Sampling Network ◽  
Oil And Natural Gas ◽  
Northern Hemispheric ◽  
Similar Decrease

Abstract. Atmospheric non-methane hydrocarbons (NMHCs) play an important role in the formation of secondary organic aerosols and ozone. After a multidecadal global decline in atmospheric mole fractions of ethane and propane – the most abundant atmospheric NMHCs – previous work has shown a reversal of this trend with increasing atmospheric abundances from 2009 to 2015 in the Northern Hemisphere. These concentration increases were attributed to the unprecedented growth in oil and natural gas (O&NG) production in North America. Here, we supplement this trend analysis building on the long-term (2008–2010; 2012–2020) high-resolution (∼3 h) record of ambient air C2–C7 NMHCs from in situ measurements at the Greenland Environmental Observatory at Summit station (GEOSummit, 72.58 ∘ N, 38.48 ∘ W; 3210 m above sea level). We confirm previous findings that the ethane mole fraction significantly increased by +69.0 [+47.4, +73.2; 95 % confidence interval] ppt yr−1 from January 2010 to December 2014. Subsequent measurements, however, reveal a significant decrease by −58.4 [−64.1, −48.9] ppt yr−1 from January 2015 to December 2018. A similar reversal is found for propane. The upturn observed after 2019 suggests, however, that the pause in the growth of atmospheric ethane and propane might only have been temporary. Discrete samples collected at other northern hemispheric baseline sites under the umbrella of the NOAA cooperative global air sampling network show a similar decrease in 2015–2018 and suggest a hemispheric pattern. Here, we further discuss the potential contribution of biomass burning and O&NG emissions (the main sources of ethane and propane) and conclude that O&NG activities likely played a role in these recent changes. This study highlights the crucial need for better constrained emission inventories.

High-Resolution In Situ Patterning of Perovskite Quantum Dots via Femtosecond Laser Direct Writing

Nanoscale ◽  
2021 ◽  
Author(s):  
Shuyu Liang ◽  
Yue-Feng Liu ◽  
Shenyuan Wang ◽  
Hong Xia ◽  
Hong-Bo Sun
Keyword(s):  
Quantum Dots ◽  
High Resolution ◽  
Femtosecond Laser ◽  
Information Storage ◽  
Colloidal Quantum Dots ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
Perovskite Quantum Dots ◽  
Patterning Technique

Colloidal quantum dots (QDs) have exhibited great potentials for optoelectronic applications, including display, laser, anti-counterfeiting and information storage. However, high-resolution patterning technique of QDs is still a challenge, while precise...

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