20‐3: Universal Method to Inject Electrons into Organic Semiconductors Utilizing Hydrogen Bonds

2020 ◽  
Vol 51 (1) ◽  
pp. 285-288
Author(s):  
Hirohiko Fukagawa ◽  
Munehiro Hasegawa ◽  
Katsuyuki Morii ◽  
Taku Oono ◽  
Tsubasa Sasaki ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Organic Semiconductors ◽  
Universal Method

Efficient Electron Injection into Organic Semiconductors Induced by Hydrogen Bonds

2019 ◽  
pp. 840
Author(s):  
Hirohiko Fukagawa ◽  
Munehiro Hasegawa ◽  
Katsuyuki Morii ◽  
Kazuma Suzuki ◽  
Tsubasa Sasaki ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Organic Semiconductors ◽  
Electron Injection

scholarly journals Organic Electronics: Universal Strategy for Efficient Electron Injection into Organic Semiconductors Utilizing Hydrogen Bonds (Adv. Mater. 43/2019)

2019 ◽  
Vol 31 (43) ◽  
pp. 1970308
Author(s):  
Hirohiko Fukagawa ◽  
Munehiro Hasegawa ◽  
Katsuyuki Morii ◽  
Kazuma Suzuki ◽  
Tsubasa Sasaki ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Organic Semiconductors ◽  
Organic Electronics ◽  
Electron Injection

Universal Strategy for Efficient Electron Injection into Organic Semiconductors Utilizing Hydrogen Bonds

2019 ◽  
Vol 31 (43) ◽  
pp. 1904201 ◽  
Author(s):  
Hirohiko Fukagawa ◽  
Munehiro Hasegawa ◽  
Katsuyuki Morii ◽  
Kazuma Suzuki ◽  
Tsubasa Sasaki ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Organic Semiconductors ◽  
Electron Injection

Can hydrogen bonds improve the hole-mobility in amorphous organic semiconductors? Experimental and theoretical insights

2015 ◽  
Vol 3 (44) ◽  
pp. 11660-11674 ◽  
Author(s):  
Viktorija Mimaite ◽  
Juozas Vidas Grazulevicius ◽  
Rasa Laurinaviciute ◽  
Dmytro Volyniuk ◽  
Vygintas Jankauskas ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Organic Semiconductors ◽  
Hole Mobility ◽  
Methyl Groups

Methoxy and methyl groups are found to improve the hole mobility via hydrogen bonds. The corresponding mechanism is shown.

scholarly journals The Role of Heteroatoms Leading to Hydrogen Bonds in View of Extended Chemical Stability of Organic Semiconductors

2015 ◽  
Vol 25 (42) ◽  
pp. 6679-6688 ◽  
Author(s):  
Christina Enengl ◽  
Sandra Enengl ◽  
Marek Havlicek ◽  
Philipp Stadler ◽  
Eric D. Glowacki ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Organic Semiconductors ◽  
Chemical Stability

Efficient Electron Injection into Organic Semiconductors Induced by Hydrogen Bonds

2019 ◽  
pp. 840
Author(s):  
Hirohiko Fukagawa ◽  
Munehiro Hasegawa ◽  
Katsuyuki Morii ◽  
Kazuma Suzuki ◽  
Tsubasa Sasaki ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Organic Semiconductors ◽  
Electron Injection

scholarly journals Unveiling the Effects of Interchain Hydrogen Bonds on Solution Gelation and Mechanical Properties of Diarylfluorene-Based Semiconductor Polymers

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Lubing Bai ◽  
Yamin Han ◽  
Chen Sun ◽  
Xiang An ◽  
Chuanxin Wei ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Hydrogen Bonds ◽  
Conjugated Polymers ◽  
Universal Method ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Prospective Application ◽  
Thinning Process ◽  
Toughness Enhancement ◽  
Polymer Light Emitting Devices

The intrinsically rigid and limited strain of most conjugated polymers has encouraged us to optimize the extensible properties of conjugated polymers. Herein, learning from the hydrogen bonds in glucose, which were facilitated to the toughness enhancement of cellulose, we introduced interchain hydrogen bonds to polydiarylfluorene by amide-containing side chains. Through tuning the copolymerization ratio, we systematically investigated their influence on the hierarchical condensed structures, rheology behavior, tensile performances, and optoelectronic properties of conjugated polymers. Compared to the reference copolymers with a low ratio of amide units, copolymers with 30% and 40% amide units present a feature of the shear-thinning process that resembled the non-Newtonian fluid, which was enabled by the interchain dynamic hydrogen bonds. Besides, we developed a practical and universal method for measuring the intrinsic mechanical properties of conjugated polymers. We demonstrated the significant impact of hydrogen bonds in solution gelation, material crystallization, and thin film stretchability. Impressively, the breaking elongation for P4 was even up to ~30%, which confirmed the partially enhanced film ductility and toughness due to the increased amide groups. Furthermore, polymer light-emitting devices (PLEDs) based on these copolymers presented comparable performances and stable electroluminescence (EL). Thin films of these copolymers also exhibited random laser emission with the threshold as low as 0.52 μJ/cm2, suggesting the wide prospective application in the field of flexible optoelectronic devices.

Representation of information in SEM by equal signal lines

1978 ◽  
Vol 36 (1) ◽  
pp. 144-145
Author(s):  
E. Rau ◽  
N. Karelin ◽  
V. Dukov ◽  
M. Kolomeytsev ◽  
S. Gavrikov ◽  
...  
Keyword(s):  
Electronic System ◽  
Space Distribution ◽  
Specimen Surface ◽  
Universal Method ◽  
Base Level ◽  
Signal Value ◽  
Information Signal ◽  
Fixed Base ◽  
Scanning Line ◽  
Amplitude Analyzer

There are different methods and devices for the increase of the videosignal information in SEM. For example, with the help of special pure electronic [1] and opto-electronic [2] systems equipotential areas on the specimen surface in SEM were obtained. This report generalizes quantitative universal method for space distribution representation of research specimen parameter by contour equal signal lines. The method is based on principle of comparison of information signal value with the fixed levels.Transformation image system for obtaining equal signal lines maps was developed in two versions:1)In pure electronic system [3] it is necessary to compare signal U (see Fig.1-a), which gives potential distribution on specimen surface along each scanning line with fixed base level signals εifor obtaining quantitative equipotential information on solid state surface. The amplitude analyzer-comparator gives flare sport videopulses at any fixed coordinate and any instant time when initial signal U is equal to one of the base level signals ε.

Use of molecular overlap to predict intermolecular repulsion in N... H-O hydrogen bonds

1998 ◽  
Vol 95 (3) ◽  
pp. 525-537 ◽  
Author(s):  
I. NOBELI S. L. PRICE R. J. WHEATLEY
Keyword(s):  
Hydrogen Bonds

On symmetrical O-H-O hydrogen bonds

1964 ◽  
Vol 25 (5) ◽  
pp. 487-492 ◽  
Author(s):  
R.E. Rundle
Keyword(s):  
Hydrogen Bonds
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