Photophysics of atomic magnesium isolated in solid methane and perdeuteromethane. II. Temperature dependence of steady state and time‐resolved luminescence

1988 ◽  
Vol 89 (4) ◽  
pp. 1844-1857 ◽  
Author(s):  
John G. McCaffrey ◽  
Geoffrey A. Ozin
Keyword(s):  
Steady State ◽  
Temperature Dependence ◽  
Time Resolved ◽  
Solid Methane

A Comparative Study of the Photophysics in Polyfluorenes and Polyfluorenes with Polyphenylene Dendron Sidechains

2001 ◽  
Vol 665 ◽  
Author(s):  
E. J. W. List ◽  
A. Pogantsch ◽  
F.P. Wenzl ◽  
C.-H. Kim ◽  
J. Shinar ◽  
...  
Keyword(s):  
Steady State ◽  
Magnetic Resonance ◽  
Comparative Study ◽  
Temperature Dependence ◽  
Polymer Films ◽  
Blue Emission ◽  
Photoinduced Absorption ◽  
Time Resolved ◽  
Singlet Exciton ◽  
Triplet Excitons

ABSTRACTThe cw absorption, steady state photoluminescence (PL), photoinduced absorption (PA), PL-detected magnetic resonance (PLDMR), and the time resolved PL of a novel polyfluorene (PF) prepared with bulky polyphenylene dendrimer substituents are compared with those of (PF) with ethyl-hexyl substituents. We show that the dendronic sidechains suppress the contribution from unwanted low energetic emission, yielding a polymer with pure blue emission. The sidechains also strongly alter the dynamics of the excited entities. In particular, the time-resolved PL and temperature-dependence of the cw PL from 20-320 K reveal distinct singlet exciton (SE) dynamics in the polymer films, while the behavior in solution is essentially the same. However, the PA results show that the dynamics of polarons and triplet excitons (TEs) are similar, and the PLDMR shows that the interaction between the SEs and polarons are also similar.

scholarly journals Ground- and excited-state characteristics in photovoltaic polymer N2200

RSC Advances ◽  
2021 ◽  
Author(s):  
Guanzhao Wen ◽  
Xianshao Zou ◽  
Rong Hu ◽  
Jun Peng ◽  
Zhifeng Chen ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Excited State ◽  
Steady State ◽  
Excited States ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Time Dependent ◽  
Functional Theory ◽  
Time Resolved ◽  
Dependent Density

Ground- and excited-states properties of N2200 have been studied by steady-state and time-resolved spectroscopies as well as time-dependent density functional theory calculations.

Temperature dependence of time-resolved photoluminescence of bound excitons in CuInS2 crystals

2005 ◽  
Vol 480-481 ◽  
pp. 283-285 ◽  
Author(s):  
K. Wakita ◽  
K. Nishi ◽  
Y. Ohta ◽  
T. Onishi
Keyword(s):  
Temperature Dependence ◽  
Time Resolved ◽  
Time Resolved Photoluminescence
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