Observed enhanced fluorescence at 2177, 2163, 1923, and 1620 Ã… in C III by photoexcitation with Mn VI line radiation at 310 Ã…

Qi, Niansheng; Kilic, Hayrettin; Krishnan, Mahadevan
March 1985
Applied Physics Letters;3/1/1985, Vol. 46 Issue 5, p471
Academic Journal
Line radiation at 310.182 Å from Mn VI ions in a laser produced plasma was used to resonantly pump C III ions in an adjacent, vacuum arc discharge from the 2s 1S ground level to the 4p1P0 upper level. Enhanced fluorescence by up to a factor of 150 was measured on the 4p 1P0–3d 1D line at 2177 Å. Collisional exchanges between the n=4 levels transfer the pumped 4p population to the 4d and 4f levels. Enhanced fluorescence was also measured on the 4d 1D–3p 1P0 line at 1620 Å and on the 4f–3d lines at 2163 Å and 1923 Å, respectively.


Related Articles

  • Fluorescence property and dissolution site of Er3+ in Ta2 O5 film prepared by sol-gel method and dip-coating technique. Wada, Noriyuki; Kubo, Michiyo; Maeda, Nobuko; Akira, Maegawa; Kojima, Kazuo // Journal of Materials Research;Feb2004, Vol. 19 Issue 2, p667 

    Ta2O5-xEr2O3 (TE) films were produced by a sol-gel method and a dip-coating technique with heat treatment at 600-1000 °C. Their powders were also prepared from the same sol. The Era3+ fluorescence property of the TE films containing various contents of Era3+ was measured as a function of the...

  • Carbon nanodot - a new rising fluorescence star. Sun, Z. // Express Polymer Letters;2013, Vol. 7 Issue 3, p211 

    The author discusses the emergence of carbon nanodots (CDs) since 2004 that has attracted great research interest due to their unique properties and potential applications. He mentions the synthesis methods of CDs that comprised of two categories such as the top-down and bottom-up routes. He...

  • Oligonucleotide-based fluorescence system for sensitive and selective detection of Ag(l) ions in aqueous solution. Hui Chen; Dan Wang; Qizhi He; Hua Li; Xinghua Ding; Lingli Chen; Le Deng // Water Science & Technology;2012, Vol. 65 Issue 3, p440 

    In this letter, a new homogeneous assay with high sensitivity and selectivity was developed for the detection of silver ions in aqueous media at room temperature by using EvaGreen (EG), polycytosine oligonucleotide C2o and single-walled carbon nanotubes (SWNTS). The fluorescence of EG is weak in...

  • Fluorescence quenchometric method for determination of ferric ion using boron-doped carbon dots. Wang, Fengxiang; Hao, Qingli; Zhang, Yuehua; Xu, Yujuan; Lei, Wu // Microchimica Acta;Jan2016, Vol. 183 Issue 1, p273 

    We report on the hydrothermal synthesis of boron-doped carbon dots (B-CDs) starting from glucose and boric acid. Doping of the CDs with boron was confirmed by Fourier transform infrared and X-ray photoelectron spectroscopy. The B-CDs have an average diameter of about 4 nm and display blue...

  • Carbon Dots for Detection of Metal Ions. Jing Yu; Menglu Wu; Na Song; Lining Yang; Jianrong Chen // Applied Mechanics & Materials;2014, Issue 556-562, p77 

    Carbon dots are novel fluorescent nano-materials which have easy to preparation. They have good stability, low toxicity, environment-friendly and are widely used in biological imaging, biomedical, and biochemical analysis, metal reduction, fluorescence probe and optoelectronic devices. This...

  • Detection of Sn(II) ions via quenching of the fluorescence of carbon nanodots. Mohd Yazid, Siti; Chin, Suk; Pang, Suh; Ng, Sing // Microchimica Acta;Jan2013, Vol. 180 Issue 1/2, p137 

    We report that fluorescent carbon nanodots (C-dots) can act as an optical probe for quantifying Sn(II) ions in aqueous solution. C-dots are synthesized by carbonization and surface oxidation of preformed sago starch nanoparticles. Their fluorescence is significantly quenched by Sn(II) ions, and...

  • Synthesis of fluorescent carbon dots via microwave carbonization of citric acid in presence of tetraoctylammonium ion, and their application to cellular bioimaging. Bhaisare, Mukesh; Talib, Abou; Khan, M.; Pandey, Sunil; Wu, Hui-Fen // Microchimica Acta;Oct2015, Vol. 182 Issue 13/14, p2173 

    A jelly-like form of carbon dots (C-dots) was prepared by microwave-assisted synthesis from citric acid in the presence of tetraoctylammonium bromide. The effect of the concentration of tetraoctylammonium bromide was examined. The synthesized carbon dots were characterized by UV-vis, XRD, FTIR,...

  • Spontaneous Assembly of Exopolymers from Phytoplankton. Yong-Xue Ding; Chin-Chang Hung; Santschi, Peter H.; Verdugo, Pedro; Wei-Chun Chin // Terrestrial, Atmospheric & Oceanic Sciences;Oct2009, Vol. 20 Issue 5, p741 

    Phytoplankton exopolymeric substances (EPS) contribute significantly to the dissolved organic carbon (DOC) pool in the ocean, playing crucial roles in the surface ocean carbon cycle. Recent studies have demonstrated that ~10% of marine DOC can self-assemble as microgels through electrostatic Ca...

  • Quinoline Group Modified Carbon Nanotubes for the Detection of Zinc Ions. Zhengping Dong; Bin Yang; Jun Jin; Jing Li; Hongwei Kang; Xing Zhong; Rong Li; Jiantai Ma // Nanoscale Research Letters;Apr2009, Vol. 4 Issue 4, p335 

    Carbon nanotubes (CNTs) were covalently modified by fluorescence ligand (glycine-N-8-quinolylamide) and formed a hybrid material which could be used as a selective probe for metal ions detection. The anchoring to the surface of the CNTs was carried out by the reaction between the precursor and...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics