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  1. No Access

    Chapter and Conference Paper

    Nanoscience Advances in CBRN Agent Detection, Information and Energy Security: An Introduction

    The present volume comprises the most important contributions to the NATO ASI “Nanoscience advances in CBRN agent detection, information and energy security” held on 29.5.–6.6.2014 in Sozopol, Bulgaria. This s...

    P. Petkov, D. Tsiulyanu, C. Popov… in Nanoscience Advances in CBRN Agents Detect… (2015)

  2. No Access

    Chapter and Conference Paper

    Doppler Broadening of the Annihilation Line Study of Organic-Inorganic Hybrid Ureasil-Based Composites

    The organic-inorganic hybrid ureasil-based composites, containing polyether chains covalently linked to a silica framework through urea bridges, referred as ureasilicates or ureasils, and semiconducting As2S3 clu...

    T. S. Kavetskyy, O. Šauša, T. Petkova… in Nanoscience Advances in CBRN Agents Detect… (2015)

  3. No Access

    Chapter and Conference Paper

    Stress Measurements and Optical Studies of (AsSe)100−xAgx Films for Optical Sensor Applications

    Thin (AsSe)100–xAgx (x = 0–25 mol.%) films have been deposited on glass substrates and silicon cantilevers by vacuum thermal evaporation from the corresponding bulk materials. The mechanical stability was investi...

    V. Ilcheva, E. Petkov, C. Popov, V. Boev… in Nanoscience Advances in CBRN Agents Detect… (2015)

  4. No Access

    Chapter and Conference Paper

    Optical and Thermal Properties of the System Bi2(Se1−xTex)3

    Samples from the Bi2(Se1−xTex)3 system, where x = 0, 50 % and 100 mol.% have been studied with respect to their structure and properties. XRD analysis revealed a polycrystalline single phase structure of the mate...

    A. Adam, E. Lilov, P. Petkov in Nanoscience Advances in CBRN Agents Detect… (2015)

  5. No Access

    Chapter and Conference Paper

    Nanostructured Diamond Electrodes for Energy Conversion Applications

    The subject of our work is the investigation of boron doped nanocrystalline diamond (NCD) layers functionalized with photosensitive molecules of manganese phthalocyanine. The functionalized NCD sample was used...

    S. Pehlivanova, Ch. Petkov, C. Popov… in Nanoscience Advances in CBRN Agents Detect… (2015)

  6. No Access

    Chapter and Conference Paper

    Ternary Ge–Se–(B, Ga, Tl) Chalcogenides – Preparation, Properties and Applications

    Ternary amorphous chalcogenide Ge—Se—(B, Ga, Tl) glasses and thin films, their preparation, properties, and applications, are reviewed, expanding on recently obtained results. The progress obtained is not only...

    P. Petkov in Nanostructured Materials for Advanced Technological Applications (2009)

  7. No Access

    Chapter and Conference Paper

    Physico-Chemical Characterization of Nanostructured As–Se–Ag Glassy Materials

    Bulk glasses from the systems (AsSe)1—xAgx and (As2Se3)1—xAgx have been prepared by the melt-quenching technique. Basic physico-chemical characteristics like density, microhardness, and compactness have been inve...

    V. Ilcheva, T. Petkova, D. Roussev… in Nanostructured Materials for Advanced Tech… (2009)

  8. No Access

    Chapter and Conference Paper

    Thermal Behavior of Novel (GeS2)1-X(AgI)X Glasses

    Novel chalcohalide glasses have been developed. The amorphous nature of the synthesized Ge—S—AgI materials has been proven by means of X-ray diffraction. Differential scanning calorimetry has been used to inve...

    B. Monchev, T. Petkova, P. Petkov, J. Philip in Nanostructured Materials for Advanced Tech… (2009)

  9. No Access

    Chapter and Conference Paper

    Structure And Crystallization Behaviour Of (GeTe5)100−XGaX Nanosized Thin Films For Phase-Change Applications

    Nanosized thin films from the (GeTe5)100−xGax system have been investigated to establish the effect of Ga addition on the structure and crystallization kinetics of GeTe5 alloys. XRD measurements and TEM images of...

    P. Ilchev, P. Petkov, D. Wamwangi, M. Wuttig in Nanostructured Materials for Advanced Tech… (2009)

  10. No Access

    Chapter and Conference Paper

    Study of (As2Se3)100-X(AgI)X Thin Films Prepared by Pld and Vte Methods

    Amorphous chalcogenide (As2Se3)100-x(AgI)x thin films with x = 5, 10, 15, 20, 25, 30 and 35 mol % have been deposited by pulsed laser deposition (PLD) and vacuum thermal evaporation (VTE). The films were characte...

    T. Petkova, V. Ilcheva, C. Popov… in Nanostructured Materials for Advanced Tech… (2009)