Photoelectron Emission from Yttrium Thin Films Prepared by Pulsed Laser Deposition

被引：18
|
作者：
Cultrera, L. [2 ]
Grigorescu, S. [3 ]
Gatti, G. [2 ]
Miglietta, P. [1 ,4 ]
Tazzioli, F. [2 ]
Perrone, A. [1 ,4 ]
机构：
[1] Univ Salento, Dept Phys, I-73100 Lecce, Italy
[2] Natl Labs Frascati, Natl Inst Nucl Phys, I-00046 Frascati, Italy
[3] Natl Inst Laser Plasma & Radiat Phys, Laser Dept, Bucharest 77125, Romania
[4] Univ Salento, Natl Inst Nucl Phys, I-73100 Lecce, Italy
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 02期
关键词：
Electron Beams; Thin Films; Metallic Photocathodes; RF PHOTOINJECTORS; MG FILMS; PHOTOCATHODES; PHOTOEMISSION; EFFICIENCY; MAGNESIUM; ULTRAVIOLET; ADSORPTION; MG(0001); METALS;
D O I：
10.1166/jnn.2009.C208
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We present the results of our investigation of metallic films as suitable materials for the production of intense electron beams. Thin films of Y prepared for the first time by pulsed laser deposition on Si substrates have been tested as photocathodes in an ultra high vacuum photodiode chamber at 10(-6) Pa. High quantum efficiencies have been obtained for the deposited films, comparable to those of corresponding bulks. The role of the adsorbed gases on the emission performance has been studied. Systematic laser cleaning treatments improved the quantum efficiency (QE) from 10(-6) to 4.5 10(-4). The samples could stay for several months in open air before being tested in a photodiode cell. The deposition process and testing results are presented.
引用
收藏
页码：1585 / 1588
页数：4
相关论文
共 50 条
  • [31] Optical properties of thin films of ZnO prepared by pulsed laser deposition
    Sans, JA
    Segura, A
    Mollar, M
    Marí, B
    THIN SOLID FILMS, 2004, 453 : 251 - 255
  • [32] Transparent conductive CuI thin films prepared by pulsed laser deposition
    Zhu, B. L.
    Zhao, X. Z.
    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2011, 208 (01): : 91 - 96
  • [33] Highlights on photocathodes based on thin films prepared by pulsed laser deposition
    Lorusso, A.
    Gontad, F.
    Perrone, A.
    Stankova, N.
    PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2011, 14 (09):
  • [34] Luminescent properties of GaN thin films prepared by pulsed laser deposition
    Cazzanelli, M
    Vinegoni, C
    Cole, D
    Lunney, JG
    Middleton, PG
    Trager-Cowan, C
    O'Donnell, KP
    Pavesi, L
    MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1999, 59 (1-3): : 137 - 140
  • [35] SBT ferroelectric thin films prepared by pulsed excimer laser deposition
    Shanghai Inst of Metallurgy, Chinese Acad of Sciences, Shanghai, China
    Zhongguo Jiguang, 5 (397-400):
  • [36] Hard magnetic SmCo thin films prepared by pulsed laser deposition
    Neu, V
    Thomas, J
    Fähler, S
    Holzapfel, B
    Schultz, L
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 : 1290 - 1293
  • [37] Enhanced magnetoresistance of multilayered thin films prepared by pulsed laser deposition
    Yang, Y
    Yuan, GL
    Zhou, L
    Liu, JM
    Liu, ZG
    MATERIALS LETTERS, 2003, 57 (18) : 2693 - 2697
  • [38] SiCxNy thin films alloys prepared by pulsed excimer laser deposition
    UNAM, Ensenada, Mexico
    Appl Surf Sci, (564-568):
  • [39] Pulsed laser deposition of tin oxide thin films for field emission
    Jadhav, H.
    Suryawanshi, S.
    More, M. A.
    Sinha, S.
    APPLIED SURFACE SCIENCE, 2017, 419 : 764 - 769
  • [40] Pulsed laser deposition of ZnO thin films for applications of light emission
    Bae, SH
    Lee, SY
    Jin, BJ
    Im, S
    APPLIED SURFACE SCIENCE, 2000, 154 : 458 - 461
12345