Detail of "155306-71-1"

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Vertical cavity light-producing device with improved power conversion

Vertical cavity light-producing device with improved power conversion. Kahen, Keith B. (Eastman Kodak Company, USA). U.S. US 6690697 B1 10 Feb 2004, 8 pp. (English). (United States of America). CODEN: USXXAM.There are some reagents with their cas registry numbers 155306-71-1 and 7631-86-9 are used in this study. CLASS: ICM: H01S003-14. ICS: H01S003-091; H01S003-08. NCL: 372039000; 372070000; 372096000. APPLICATION: US 2002-224238 20 Aug 2002. DOCUMENT TYPE: Patent CA Section: 73 (Optical, Electron, and Mass Spectroscopy and Other Related Properties) Section cross-reference(s): 76 A vertical cavity light-emitting device which, in response to incident external light, produces quasi-laser light with an enlarged spectral linewidth selected to improve power conversion efficiency, is described comprising (a) a substrate; (b) a bottom dielec. stack reflective to light over a predetd. range of wavelengths; (c) an org. active region for producing quasi-laser light; (d) a top dielec. stack spaced from the bottom dielec. stack and reflective to light over a predetd. range of wavelengths; (e) the org. active region includes one or more periodic gain region(s) each having a thickness less than 50 nm and greater than 0 nm and org. spacer layers disposed on either side of the periodic gain region(s) and arranged so that the periodic gain region(s) is aligned with the antinodes of the device's standing wave electromagnetic field; and (f) the top or bottom dielec. stack being selected so that its peak reflectance is less than 99% and the device's spectral linewidth is increased but produces an acceptable level of spontaneous emission, thereby resulting in improved power conversion efficiency. .

Efficient green organic light-emitting diodes with sterically hindered coumarin dopants

Efficient green organic light-emitting diodes with sterically hindered coumarin dopants. Chen, Chin H.; Tang, Ching W. (Department of Applied Chemistry, Microelectronics and Information Systems Research Center, National Chiao Tung University, Hsinchu 30050, Taiwan). Applied Physics Letters, 79(22), 3711-3713 (English) 2001 American Institute of Physics. 155306-71-1 is the cas registry number of certain chemical which is used as reagents here. CODEN: APPLAB. ISSN: 0003-6951. DOCUMENT TYPE: Journal CA Section: 73 (Optical, Electron, and Mass Spectroscopy and Other Related Properties) The authors discovered 2 sterically hindered green coumarin derivs.In this article, certain chemicals are used. One of their cas registry numbers is 155306-71-1 which showed significantly better thermal stability and overall electroluminescence (EL) performance than those of the corresponding 3-(2-benzothiazolyl)-7-(diethylamino)-2H-1-benzopyran-2-one (C-6) and 10-(2-benzothiazolyl)-1,1,7,7-tetramethyl- 2,3,6,7-tetrahydro-1H,5H,11H-benzo[l]pyrano[6,7, 8-ij] quinolizin-11-one (C-545T). The strategic incorporation of bulky spacer tert-Bu groups in these dopants considerably delays the onset of concn. quenching. In particular, 10-[2(5,7-di-t-butyl)benzothiazolyl]-1,1,7,7-tetramethyl-2,3,6,7-tetrahydr o-1H,5H,11H-benzo-[l]pyrano[6,7,8-ij]quinolizin-11-one (C-545TB) with its superb thermal stability (Tg = 142°; Td = 327°), high luminance efficiency (~13 cd/A), good Commission Interationale d'Eclairage (CIE) coordinates (x = 0.30; yr = 0.64) and a nearly flat EL efficiency dependence on drive current stands out as 1 of the best choice of green dopants for use in the passive-matrix org. light-emitting diode displays. ..