přejít na obsah
Triplet to triplet absorption in organic molecules for use in photochromic devices Náhled dokumentu
ZavřítNáhled dokumentu
Probíhá kontrola...

Triplet to triplet absorption in organic molecules for use in photochromic devices

Autor John L Kropp; Maurice W Windsor; Air Force Materials Laboratory (U.S.); TRW Systems Group.
Vydavatel: Wright-Patterson Air Force Base, Ohio : Air Force Materials Laboratory, Air Force Systems Command, United States Air Force, 1968.
Edice: Air Force Materials Laboratory (U.S.).; Technical Report
Vydání/formát:   Kniha : National government publication : English
Databáze:WorldCat
Shrnutí:
The photochromic properties of several substituted aromatics and heterocyclics have been investigated. The absorption spectra, phosphorescence lifetime T-T absorption spectra and the product of triplet extinction coefficient and triplet formation efficiency, were evaluated for representative compounds. Using these data the photochromic properties of heterocyclics are compared to their hydrocarbon analogs. The values  Přečíst více...
Hodnocení:

(ještě nehodnoceno) 0 zobrazit recenze - Buďte první.

Předmětová hesla:
Více podobných

 

Vyhledat exemplář v knihovně

&AllPage.SpinnerRetrieving; Vyhledávání knihoven, které vlastní tento dokument...

Detaily

Typ materiálu: Government publication, National government publication
Typ dokumentu: Book
Všichni autoři/tvůrci: John L Kropp; Maurice W Windsor; Air Force Materials Laboratory (U.S.); TRW Systems Group.
OCLC číslo: 428078065
Poznámky: "August 1968."
AD0675323 (from http://www.dtic.mil).
Research supported by the United States Air Force Materials Laboratory, and performed by TRW Systems Group.
Popis: vi, 60 p. : ill., tables ; 28 cm.
Název edice: Air Force Materials Laboratory (U.S.).; Technical Report
Odpovědnost: J. L. Kropp, M. W. Windsor.

Anotace:

The photochromic properties of several substituted aromatics and heterocyclics have been investigated. The absorption spectra, phosphorescence lifetime T-T absorption spectra and the product of triplet extinction coefficient and triplet formation efficiency, were evaluated for representative compounds. Using these data the photochromic properties of heterocyclics are compared to their hydrocarbon analogs. The values of the maximum triplet formation efficiency are lower for heterocyclics than for aromatics. However, broader T-T absorption and more efficient absorption for pumping light suggest that, on balance, heterocyclics are comparable to aromatic hydrocarbons in their effectiveness as photochromic materials. The variation of solvent induces large changes in the photochromic properties of heterocyclics thus providing a useful additional parameter for adjusting their properties. These differences also promise to shed light on the mechanism of radiationless transitions in these compounds. Recommendations for further studies to improve the photochromic properties of heterocyclics are made.

Recenze

Recenze vložené uživatelem
Nahrávání recenzí GoodReads...
Přebírání recenzí DOGO books...

Štítky

Buďte první.
Potvrdit tento požadavek

Tento dokument jste si již vyžádali. Prosím vyberte Ok pokud chcete přesto v žádance pokračovat.

Propojená data


<http://www.worldcat.org/oclc/428078065>
library:oclcnum"428078065"
library:placeOfPublication
library:placeOfPublication
owl:sameAs<info:oclcnum/428078065>
rdf:typeschema:Book
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:about
schema:contributor
schema:contributor
schema:contributor
schema:creator
schema:datePublished"1968"
schema:description"The photochromic properties of several substituted aromatics and heterocyclics have been investigated. The absorption spectra, phosphorescence lifetime T-T absorption spectra and the product of triplet extinction coefficient and triplet formation efficiency, were evaluated for representative compounds. Using these data the photochromic properties of heterocyclics are compared to their hydrocarbon analogs. The values of the maximum triplet formation efficiency are lower for heterocyclics than for aromatics. However, broader T-T absorption and more efficient absorption for pumping light suggest that, on balance, heterocyclics are comparable to aromatic hydrocarbons in their effectiveness as photochromic materials. The variation of solvent induces large changes in the photochromic properties of heterocyclics thus providing a useful additional parameter for adjusting their properties. These differences also promise to shed light on the mechanism of radiationless transitions in these compounds. Recommendations for further studies to improve the photochromic properties of heterocyclics are made."
schema:exampleOfWork<http://worldcat.org/entity/work/id/1909990077>
schema:inLanguage"en"
schema:name"Triplet to triplet absorption in organic molecules for use in photochromic devices"
schema:numberOfPages"60"
schema:publisher
schema:url

Content-negotiable representations

Zavřít okno

Prosím přihlaste se do WorldCat 

Nemáte účet? Můžete si jednoduše vytvořit bezplatný účet.