scholarly journals Tunable Upconversion Luminescence and Energy Transfer Process in BaLa2ZnO5:Er3+/Yb3+Phosphors

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Lefu Mei ◽  
Jing Xie ◽  
Libing Liao ◽  
Ming Guan ◽  
Haikun Liu
Keyword(s):  
Energy Transfer ◽  
Transfer Process ◽  
Laser Excitation ◽  
Energy Transfer Process ◽  
Upconversion Luminescence ◽  
Solid State Method ◽  
Characteristic Energy ◽  
Photon Process ◽  
State Method ◽  
Power Studies

BaLa2ZnO5:Er3+/Yb3+has been synthesized via a high temperature solid-state method, and the tunable upconversion luminescence and energy transfer process between Yb3+and Er3+in this system have been demonstrated. Upon 980 nm laser excitation, the intense green and red emission around 527, 553, and 664 nm were observed for BaLa2ZnO5:Er3+/Yb3+, which can be assigned to the characteristic energy level transitions of2H11/2→4I15/2,4S3/2→4I15/2, and4F9/2→4I15/2of Er3+, respectively. The critical Er3+quenching concentration (QC) was determined to be about 5 mol%, and the power studies indicated that mixture of 2- and 3-photon process was responsible for the green and red upconversion luminescence.

Heat, quantum mechanics and information

2015 ◽  
Vol 10 (2) ◽  
pp. 2692-2695
Author(s):  
Bhekuzulu Khumalo
Keyword(s):  
Information Theory ◽  
Quantum Mechanics ◽  
Energy Transfer ◽  
Transfer Process ◽  
Energy Transfer Process ◽  
Process Information ◽  
Double Slit Experiment ◽  
Slit Experiment ◽  
Double Slit

Heat has often been described as part of the energy transfer process. Information theory says everything is information. If everything is information then what type of information is heat, this question can be settled by the double slit experiment, but we must know what we are looking for. 

White light emission from a two-component hybrid gel via an energy transfer process

2015 ◽  
Vol 17 (48) ◽  
pp. 32297-32303 ◽  
Author(s):  
Xinhua Cao ◽  
Haichuang Lan ◽  
Zhenhua Li ◽  
Yueyuan Mao ◽  
Liming Chen ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Transfer Process ◽  
White Light ◽  
Light Emission ◽  
Light Harvesting ◽  
Energy Transfer Process ◽  
White Light Emission ◽  
Light Emitting ◽  
Hybrid Gel ◽  
Two Component

A two-component light-harvesting organogel containing a naphthalimide-based gelator as a donor and a phosphorescent Ir(iii) complex as an acceptor was used to produce white-light-emitting organogels.

Conditions for efficient charge generation preceded by energy transfer process in non-fullerene organic solar cells

2021 ◽  
Author(s):  
L. Benatto ◽  
C. A. M. Moraes ◽  
G. Candiotto ◽  
K. R. A. Sousa ◽  
J. P. A. Souza ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Solar Cells ◽  
Binding Energy ◽  
Transfer Process ◽  
Organic Solar Cells ◽  
Driving Force ◽  
Energy Transfer Process ◽  
Simple Relationship ◽  
Charge Generation ◽  
Efficient Charge

Our results provide a simple relationship involving the driving force and binding energy of CT state to maximize charge generation in non-fullerene organic solar cells.

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