scholarly journals How two-dimensional brick layer J-aggregates differ from linear ones: Excitonic properties and line broadening mechanisms

2016 ◽  
Vol 144 (13) ◽  
pp. 134310 ◽  
Author(s):  
Arend G. Dijkstra ◽  
Hong-Guang Duan ◽  
Jasper Knoester ◽  
Keith A. Nelson ◽  
Jianshu Cao
Keyword(s):  
Two Dimensional ◽  
Line Broadening ◽  
J Aggregates ◽  
Excitonic Properties

Mesoscopic Organization of Two-Dimensional J-Aggregates of Thiacyanine in Langmuir−Schaefer Films

Langmuir ◽  
2004 ◽  
Vol 20 (26) ◽  
pp. 11569-11576 ◽  
Author(s):  
Chun-Hong Tian ◽  
Dao-Jun Liu ◽  
Roel Gronheid ◽  
Mark Van der Auweraer ◽  
Frans C. De Schryver
Keyword(s):  
Two Dimensional ◽  
J Aggregates

scholarly journals Localization and coherent dynamics of excitons in the two-dimensional optical spectrum of molecular J-aggregates

2008 ◽  
Vol 128 (16) ◽  
pp. 164511 ◽  
Author(s):  
Arend G. Dijkstra ◽  
Thomas la Cour Jansen ◽  
Jasper Knoester
Keyword(s):  
Optical Spectrum ◽  
Two Dimensional ◽  
Coherent Dynamics ◽  
J Aggregates

Finite size line broadening and superradiance of optical transitions in two dimensional long-range ordered molecular aggregates

2013 ◽  
Vol 139 (4) ◽  
pp. 044302 ◽  
Author(s):  
Mathias Müller ◽  
Alexander Paulheim ◽  
Alexander Eisfeld ◽  
Moritz Sokolowski
Keyword(s):  
Long Range ◽  
Finite Size ◽  
Optical Transitions ◽  
Two Dimensional ◽  
Molecular Aggregates ◽  
Line Broadening

J-aggregate structures in crystals of three bisazomethine dyes

2004 ◽  
Vol 219 (4) ◽  
Author(s):  
Shinya Matsumoto ◽  
Kazuko Shirai ◽  
Kimiko Kobayashi ◽  
Tatsuo Wada ◽  
Motoo Shiro
Keyword(s):  
Low Temperature ◽  
Crystal Structures ◽  
Two Dimensional ◽  
Bond Lengths ◽  
Temperature Study ◽  
Characteristic Two ◽  
J Aggregates ◽  
Aggregate Structures ◽  
Deposited Films

AbstractThe crystal structures of three bisazomethine dyes, which form J-aggregates in vapor-deposited films, were investigated. The characteristic two-dimensional arrangement of molecules proposed for J-aggregates was recognized in crystals of all three dyes. The observation of unusual bond lengths in one of the dyes at 298 K was resolved by a low temperature study,

Identification of Aminopyrimidine Regioisomers via Line Broadening Effects in 1H and 13C NMR Spectroscopy

2004 ◽  
Vol 57 (11) ◽  
pp. 1079 ◽  
Author(s):  
James Garner ◽  
Tim Hill ◽  
Luke Odell ◽  
Paul Keller ◽  
Jody Morgan ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
13C Nmr ◽  
Diagnostic Tool ◽  
Room Temperature ◽  
Medicinal Chemistry ◽  
13C Nmr Spectroscopy ◽  
Primary Amines ◽  
Two Dimensional ◽  
Line Broadening ◽  
1H And 13C Nmr

Substituted mono- and diamino-pyrimidines were synthesized as part of our medicinal chemistry programmes. Primary amines substituted at the 4-position exhibited room-temperature line broadening effects in both 1H and 13C NMR spectroscopy due to the presence of rotamers, but these effects were not observed for substituents in the 2-position. This provided a simple diagnostic tool for the identification of regioisomers, a determination which would otherwise have required two-dimensional experiments.

Carrier dynamics in two-dimensional perovskites: Dion-Jacobson vs. Ruddlesden-Popper thin films

2022 ◽  
Author(s):  
Chaochao Qin ◽  
Liu-Hong Xu ◽  
Zhongpo Zhou ◽  
Jian Song ◽  
Shu-Hong Ma ◽  
...  
Keyword(s):  
Thin Films ◽  
High Performance ◽  
Carrier Dynamics ◽  
Multilayer Structures ◽  
Two Dimensional ◽  
Optoelectronic Applications ◽  
Excitonic Properties

Quasi-two dimensional perovskites have emerged as candidates of high-performance materials for various optoelectronic applications due to the unique excitonic properties in their multilayer structures. Both Dion–Jacobson perovskites and Ruddlesden-Popper phases...

scholarly journals Electronic and excitonic properties of two-dimensional and bulk InN crystals

RSC Advances ◽  
2017 ◽  
Vol 7 (67) ◽  
pp. 42455-42461 ◽  
Author(s):  
Dan Liang ◽  
Ruge Quhe ◽  
Yingjie Chen ◽  
Liyuan Wu ◽  
Qian Wang ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Three Dimensional ◽  
Optoelectronic Properties ◽  
Two Dimensional ◽  
Functional Theory ◽  
Excitonic Properties ◽  
Structural And Optoelectronic Properties

Motivated by potential extensive applications in nanoelectronics devices, we calculate structural and optoelectronic properties of two-dimensional InN as well as its three-dimensional counterparts by using density functional theory.

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