acceptor

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acceptor

[ak′sep·tər]
(chemistry)
A chemical whose reaction rate with another chemical increases because the other substance undergoes another reaction.
A species that accepts electrons, protons, electron pairs, or molecules such as dyes.
(chemical engineering)
A calcined carbonate used to absorb the carbon dioxide evolved during a coal gasification process.
(solid-state physics)
An impurity element that increases the number of holes in a semiconductor crystal such as germanium or silicon; aluminum, gallium, and indium are examples. Also known as acceptor impurity; acceptor material.

acceptor

References in periodicals archive ?
DOUBLE ENTRY Apple's Jade is among the acceptors for both Champion Hurdle and OLBG at Cheltenham on Tuesday
On another hand, the optoelectronic and photovoltaic properties improve when some donor and acceptor blocs alternate on the oligomer skeleton since slight band gap are noticed' especially for X2 and X3 molecules with chromophore (average value 2.59 eV).
Coin Acceptors is a 60-year-old company that provides the unattended point-of-sale industry with currency services and refrigerated vending equipment.
By introduction of an electron-withdrawing group in the acceptor, it hoped that the molecular modification can attract electrons and promote an intramolecular charge transfer from donor to acceptor, further leading to better electron injection into the conduction band of Ti[O.sub.2].
Aidan O'Brien, who has sent out 12 winners of the event, has eight of the 18 acceptors, including Norfolk Stakes winner Sioux Nation, and Murillo.
Figure 1 shows the age distribution of contraceptives acceptors. Age category 20-24 years were the most acceptors over the three years in review, while the age group > 35 were the lowest acceptors.
As mentioned above, there are three primary different approaches that have been investigated to generate appreciable hole conduction in ZnO at room temperature: substitution of Group IA impurities on the Zn sublattice, codoping of donors and acceptors, and substitution of Group VA impurities on the O sublattice.
The main structure comprises of fluorene as electron acceptor and thiophene as electron donor in order to increase the electron mobility.
This research compared the demographic characteristics and perceptions of handbill acceptors and nonacceptors.
The invoice data remain in the database server, and depending on the invoice routing information applied by the vendors, can be viewed by the inspectors, acceptors, certifiers (a.k.a.
LeJeune did not enter into a non-compete or a confidentiality agreement while employed with Coin Acceptors. He worked in sales and was never involved with manufacturing, research, or development.