Synthesis and Absorption Spectra of Poly(3-(phenylenevinyl)thiophene)s with Conjugated Side Chains

2006 ◽  
Vol 39 (2) ◽  
pp. 594-603 ◽  
Author(s):  
Jianhui Hou ◽  
Lijun Huo ◽  
Chang He ◽  
Chunhe Yang ◽  
Yongfang Li
Keyword(s):  
Absorption Spectra ◽  
Side Chains

Synthesis and optoelectronics properties of diblock copolymer of P3HT containing thiol-side chains and its hybrid nanocomposite

RSC Advances ◽  
2016 ◽  
Vol 6 (112) ◽  
pp. 110686-110694 ◽  
Author(s):  
Yisha Qiao ◽  
Yixuan Du ◽  
Yinfeng Liu ◽  
Yunbo Li
Keyword(s):  
Absorption Spectra ◽  
Diblock Copolymer ◽  
Side Chains ◽  
Hybrid Nanocomposite ◽  
Broad Absorption ◽  
Elliptical Shape ◽  
Weight Content ◽  
Hybrid Nanoparticle ◽  
Nanoparticle Film

DP-P3HT-SH in global, leaf-like and elliptical shape states exhibiting broad absorption spectra between 300 nm and 650 nm, and the conductivity values of a DP-P3HT-S-AuNPs hybrid nanoparticle film as a function of the weight content of AuNPs.

The Absorption Spectra of Some Benzene Derivatives with Unsaturated Side Chains

1947 ◽  
Vol 69 (4) ◽  
pp. 880-883 ◽  
Author(s):  
Tod W. Campbell ◽  
Seymour Linden ◽  
Sylvia Godshalk ◽  
William G. Young
Keyword(s):  
Absorption Spectra ◽  
Side Chains ◽  
Benzene Derivatives

A 16.4% efficiency organic photovoltaic cell enabled using two donor polymers with their side-chains oriented differently by a ternary strategy

2020 ◽  
Vol 8 (7) ◽  
pp. 3676-3685 ◽  
Author(s):  
Yuan Chang ◽  
Tsz-Ki Lau ◽  
Philip C. Y. Chow ◽  
Ningning Wu ◽  
Dan Su ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Photovoltaic Cell ◽  
Organic Photovoltaic ◽  
Side Chains ◽  
Material System ◽  
Organic Photovoltaic Cell

A ternary material system featuring two donor polymers with identical absorption spectra and differently-oriented side-chains was used in an organic photovoltaic (OPV) cell. It is the first ternary blended OPV cell with two donor polymers with >16% efficiency.

High Conformational Stability of Cytochrome P-450 1A2. Evidence from UV Absorption Spectra

1998 ◽  
Vol 63 (3) ◽  
pp. 441-448 ◽  
Author(s):  
Pavel Anzenbacher ◽  
Nicole Bec ◽  
Jiří Hudeček ◽  
Reinhard Lange ◽  
Eva Anzenbacherová
Keyword(s):  
Absorption Spectra ◽  
Conformational Changes ◽  
Conformational Stability ◽  
Specific Inhibitor ◽  
Maximum Amplitude ◽  
Side Chains ◽  
Spectral Maximum ◽  
Stable Conformation ◽  
Fourth Derivative ◽  
Cytochrome P 450

The fourth derivative of absorption spectra between 260 and 310 nm were used for monitoring the changes in exposure of tyrosine and tryptophan side chains in cytochrome P-450 1A2 to solvent. Titration of the enzyme with a specific inhibitor, α-naphthoflavone (2-phenylazo[h]chromen-4-one) to inhibitor concentration of 30 μM resulted in small but pronounced changes in derivative spectra (decrease in the maximum amplitude, downshift of the spectral maximum at about 293 nm) corresponding to the exposure of tryptophans towards the solvent. Further addition of the inhibitor led to a decrease of the exposure of these aromatic side-chains. Similar behaviour was also observed in this work for other cytochromes P-450 (2B4 and 11A1). The fourth derivative of absorption spectra was also used to examine the stability of the enzyme both in the presence and absence of α-naphthoflavone, with increasing pressure (up to 400 MPa) and temperature (up to 35 °C) as pertubing factors. The results show that cytochrome P-450 1A2 has a stable conformation as all the conformational changes observed were (spectrally) fully reversible.

Ultraviolet Absorption of Refractory Elements by a Dual Laser Plasma Method

1988 ◽  
Vol 102 ◽  
pp. 243-246
Author(s):  
J.T. Costello ◽  
W.G. Lynam ◽  
P.K. Carroll
Keyword(s):  
Absorption Spectra ◽  
Laser Plasma ◽  
Optical Pulse ◽  
Ionic Species ◽  
Neutral Species ◽  
Plasma Method ◽  
Plasma Technique ◽  
Refractory Elements ◽  
Delay Times ◽  
Dual Laser

AbstractThe dual laser-produced plasma technique for the study of ionic absorption spectra has been developed by the use of two Q-switched ruby lasers to enable independent generation of the absorbing and back-lighting plasmas. Optical pulse handling is used in the coupling cicuits to enable reproducible pulse delays from 250 nsec. to 10 msec, to be achieved. At delay times > 700 nsec. spectra of essentially pure neutral species are observed. The technique is valuable, not only for obtaining the neutral spectra of highly refractory and/or corrosive materials but also for studying behaviour of ionic species as a function of time. Typical spectra are shown in Fig. 1.

XUV Absorption Spectra of Carbon Ions

1988 ◽  
Vol 102 ◽  
pp. 71-73
Author(s):  
E. Jannitti ◽  
P. Nicolosi ◽  
G. Tondello
Keyword(s):  
Absorption Spectra ◽  
Cross Section ◽  
Theoretical Calculations ◽  
Photoionization Cross Section ◽  
Carbon Ions

AbstractThe photoabsorption spectra of the carbon ions have been obtained by using two laser-produced plasmas. The photoionization cross-section of the CV has been absolutely measured and the value at threshold, σ=(4.7±0.5) × 10−19cm2, as well as its behaviour at higher energies agrees quite well with the theoretical calculations.

Surface enhancement of Raman and absorption spectra from cyanine dye D266 adsorbed on ZnO colloids

1996 ◽  
Vol 88 (1) ◽  
pp. 281-290 ◽  
Author(s):  
HAO WEN ◽  
TIANJING HE ◽  
CUNYI XU ◽  
JIAN ZUO ◽  
FAN-CHEN LIU
Keyword(s):  
Absorption Spectra ◽  
Cyanine Dye ◽  
Surface Enhancement ◽  
Zno Colloids
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