ChemInform Abstract: Molecular Design of a New Class of Spin-Labeled Ribonucleosides with N-tert-Butylaminoxyl Radicals.

ChemInform ◽  
2010 ◽  
Vol 32 (37) ◽  
pp. no-no
Author(s):  
Mariko Aso ◽  
Takeshi Ikeno ◽  
Kouji Norihisa ◽  
Masakazu Tanaka ◽  
Noboru Koga ◽  
...  
Keyword(s):  
Molecular Design ◽  
New Class

scholarly journals Molecular design of efficient yellow- to red-emissive alkynylgold(iii) complexes for the realization of thermally activated delayed fluorescence (TADF) and their applications in solution-processed organic light-emitting devices

2021 ◽  
Author(s):  
Cathay Chai Au-Yeung ◽  
Lok-Kwan Li ◽  
Man-Chung Tang ◽  
Shiu-Lun Lai ◽  
Wai-Lung Cheung ◽  
...  
Keyword(s):  
Molecular Design ◽  
Delayed Fluorescence ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Thermally Activated ◽  
New Class ◽  
Organic Light ◽  
Tunable Emission

We report the design of a new class of fused heterocyclic alkynyl ligand-containing gold(iii) complexes, which shows tunable emission colors spanning yellow to red region and exhibits thermally activated delayed fluorescence (TADF) properties.

Data mining with molecular design rules identifies new class of dyes for dye-sensitised solar cells

2014 ◽  
Vol 16 (48) ◽  
pp. 26684-26690 ◽  
Author(s):  
Jacqueline M. Cole ◽  
Kian Sing Low ◽  
Hiroaki Ozoe ◽  
Panagiota Stathi ◽  
Chitoshi Kitamura ◽  
...  
Keyword(s):  
Data Mining ◽  
Big Data ◽  
Solar Cells ◽  
Large Scale ◽  
Data Science ◽  
Molecular Design ◽  
Energy Research ◽  
Design Rules ◽  
New Class ◽  
Large Scale Screening

Big data science informs energy research: large-scale screening of crystal structures identifies unforeseen class of dyes for dye-sensitised solar cells.

scholarly journals Relief of excited-state antiaromaticity enables the smallest red emitter

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Heechan Kim ◽  
Woojin Park ◽  
Younghun Kim ◽  
Michael Filatov ◽  
Cheol Ho Choi ◽  
...  
Keyword(s):  
Excited State ◽  
Light Emission ◽  
Molecular Design ◽  
Intramolecular Charge Transfer ◽  
Light Emitters ◽  
Long Wavelength ◽  
New Class ◽  
Color Spectrum ◽  
Stokes Shifts ◽  
Wavelength Light

AbstractIt is commonly accepted that a large π-conjugated system is necessary to realize low-energy electronic transitions. Contrary to this prevailing notion, we present a new class of light-emitters utilizing a simple benzene core. Among different isomeric forms of diacetylphenylenediamine (DAPA), o- and p-DAPA are fluorescent, whereas m-DAPA is not. Remarkably, p-DAPA is the lightest (FW = 192) molecule displaying red emission. A systematic modification of the DAPA system allows the construction of a library of emitters covering the entire visible color spectrum. Theoretical analysis shows that their large Stokes shifts originate from the relief of excited-state antiaromaticity, rather than the typically assumed intramolecular charge transfer or proton transfer. A delicate interplay of the excited-state antiaromaticity and hydrogen bonding defines the photophysics of this new class of single benzene fluorophores. The formulated molecular design rules suggest that an extended π-conjugation is no longer a prerequisite for a long-wavelength light emission.

High Temperature Organic Electronics

MRS Advances ◽  
2020 ◽  
Vol 5 (10) ◽  
pp. 505-513
Author(s):  
Aristide Gumyusenge ◽  
Jianguo Mei
Keyword(s):  
High Temperature ◽  
Organic Semiconductors ◽  
Organic Electronics ◽  
Elevated Temperatures ◽  
Molecular Design ◽  
State Of The Art ◽  
Stable Operation ◽  
High Temperature Electronics ◽  
New Class ◽  
Review Current

ABSTRACTThe emerging breakthroughs in space exploration, smart textiles, and novel automobile designs have increased technological demand for high temperature electronics. In this snapshot review we first discuss the fundamental challenges in achieving electronic operation at elevated temperatures, briefly review current efforts in finding materials that can sustain extreme heat, and then highlight the emergence of organic semiconductors as a new class of materials with potential for high temperature electronics applications. Through an overview of the state-of-the art materials designs and processing methods, we will layout molecular design principles and fabrication strategies towards achieving thermally stable operation in organic electronics.

Towards Automated Design of Mechanically Functional Molecules

2015 ◽  
Author(s):  
Charles A. Manion ◽  
Ryan Arlitt ◽  
Irem Tumer ◽  
Matthew I. Campbell ◽  
P. Alex Greaney
Keyword(s):  
Smart Materials ◽  
De Novo ◽  
Molecular Design ◽  
Metal Organic Framework ◽  
Automated Design ◽  
Computational Approach ◽  
Responsive Materials ◽  
New Class ◽  
De Novo Molecular Design ◽  
Metal Organic

Metal Organic Responsive Frameworks (MORFs) are a proposed new class of smart materials consisting of a Metal Organic Framework (MOF) with photoisomerizing beams (also known as linkers) that fold in response to light. Within a device these new light responsive materials could provide the capabilities such as photo-actuation, photo-tunable rigidity, and photo-tunable porosity. However, conventional MOF architectures are too rigid to allow isomerization of photoactive sub-molecules. We propose a new computational approach for designing MOF linkers to have the required mechanical properties to allow the photoisomer to fold by borrowing concepts from de novo molecular design and graph synthesis. Here we show how this approach can be used to design compliant linkers with the necessary flexibility to be actuated by photoisomerization and used to design MORFs with desired functionality.

Molecular Design of a New Class of Spin-Labeled Ribonucleosides withN-tert-Butylaminoxyl Radicals

2001 ◽  
Vol 66 (10) ◽  
pp. 3513-3520 ◽  
Author(s):  
Mariko Aso ◽  
Takeshi Ikeno ◽  
Kouji Norihisa ◽  
Masakazu Tanaka ◽  
Noboru Koga ◽  
...  
Keyword(s):  
Molecular Design ◽  
New Class

In Situ microscopy of the anodic etching of silicon

1995 ◽  
Vol 53 ◽  
pp. 232-233
Author(s):  
Frances M. Ross ◽  
Peter C. Searson
Keyword(s):  
Composite Structures ◽  
High Surface ◽  
High Surface Area ◽  
Chemical Properties ◽  
Selective Etching ◽  
Silicon On Insulator ◽  
Second Phase ◽  
Porous Layers ◽  
New Class ◽  
Porous Semiconductors

Porous semiconductors represent a relatively new class of materials formed by the selective etching of a single or polycrystalline substrate. Although porous silicon has received considerable attention due to its novel optical properties1, porous layers can be formed in other semiconductors such as GaAs and GaP. These materials are characterised by very high surface area and by electrical, optical and chemical properties that may differ considerably from bulk. The properties depend on the pore morphology, which can be controlled by adjusting the processing conditions and the dopant concentration. A number of novel structures can be fabricated using selective etching. For example, self-supporting membranes can be made by growing pores through a wafer, films with modulated pore structure can be fabricated by varying the applied potential during growth, composite structures can be prepared by depositing a second phase into the pores and silicon-on-insulator structures can be formed by oxidising a buried porous layer. In all these applications the ability to grow nanostructures controllably is critical.

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