Results 91 to 100 of about 18,467 (263)
FlexMat, EarlyView.An orthogonal spirobifluorene‐fusion strategy is introduced for B/N/O‐alternated MR frameworks, enabling improved kRISC (5.46 × 103 s−1), high ΦPL (97%), and narrow‐band pure‐red emission. Vacuum‐evaporated OLEDs incorporating this emitter achieve an EQEmax >40% (FWHM = 36 nm) and exhibit exceptionally low efficiency roll‐off at high luminance ...
Yan‐Yun Jing +7 more
wiley +1 more source
Excited state properties of neutral and charged ter-fluorene with and without a keto-defect
, 2008 Stimulated by the recent experimental report of optical properties of charged oligofluorenes [S. Fratiloiu et al., J. Phys. Chem. B 210, 59845993 (2006)], we have used time-dependent density functional theory (TD-DFT) to study the electronic structure of
W. J. D. Beenken +14 more
core +1 more source
, 2020 Perovskite solar cells have set a new milestone in terms of efficiencies in the thin film photovoltaics category. Long-term stability of perovskite solar cells is of paramount importance but remains a challenging task.
Navind Harindu, Hemasiri +8 more
core +1 more source
Fluorene‐based blue emitters: On the path to electrically pumped organic lasers
FlexMat, EarlyView.Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan +7 more
wiley +1 more source
MolbankThe wide range of application possibilities of fluorene derivatives, due to their unique physical and chemical properties, has made this class of molecules important for various disciplines.
Thomas Hanauer +3 more
doaj +1 more source
Nuclear magnetic ordening in fluorene
, 1993 The present paper considers the possibility to obtain a magnetic ordering of the proton spins in molecular crystals of fluorene using dynamic nuclear polarization (DNP) followed by adibatic demagnetization in the rotating frame (ADRF).
P.F.A. Verheij, W.Th. Wenckebach
core +1 more source
Lead‐free halide perovskites for efficient light‐emitting devices
FlexMat, EarlyView.Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen +9 more
wiley +1 more source
ToxicsThe causes of visual impairment are complex and may be influenced by exposure to environmental pollutants. Using data from the 2003–2004 National Health and Nutrition Examination Survey (NHANES), we examined the association between exposure to ten ...
Xiaowei Zang +3 more
doaj +1 more source
Journal of Surfactants and Detergents, EarlyView.ABSTRACT The use of microorganisms is an evolving method for the degradation of hydrocarbon contaminants. In this aim, halophilic hydrocarbon degrading bacteria were isolated from oil contaminated soil in Tunisia. A lipopeptide biosurfactant produced by Bacillus subtilis SPB1 was tested to increase diesel biodegradation along with co‐inoculation with ...
Inès Mnif, Dhouha Ghribi
wiley +1 more source