Shao-lan Li,Li-chun Zhang,Yan-feng Dong,Feng-zhou Zhao.Optical properties of ZnO thin films grown on diamond-like carbon by pulsed laser deposition[J].Optoelectronics Letters,2012,8(6):445-448 |
Optical properties of ZnO thin films grown on diamond-like carbon by pulsed laser deposition |
Author Name | Affiliation | E-mail | Shao-lan Li | Editorial Department, Ludong University, Yantai, 264025, China
School of Physics and Optoelectronic Engineering, Ludong University, Yantai, 264025, China | | Li-chun Zhang | College of Physics and Engineering, Qufu Normal University, Qufu, 273165, China | phyzlc@163.com | Yan-feng Dong | College of Physics and Engineering, Qufu Normal University, Qufu, 273165, China | | Feng-zhou Zhao | School of Physics and Optoelectronic Engineering, Ludong University, Yantai, 264025, China | fzzhao@ustc.edu |
|
Abstract: |
ZnO/diamond-like carbon (DLC) thin films are deposited by pulsed laser deposition (PLD), and the room-temperature photoluminescence (PL) is investigated. Using a fluorescence spectrophotometer, we obtain the PL spectra of DLC/Si and ZnO/Si thin films deposited at different substrate temperatures. The ZnO/DLC thin films show a broadband emission almost containing the entire visible spectrum. The Gaussian fitting curves of PL spectra reveal that the visible emission of ZnO/DLC thin films consists of three peaks centered at 381 nm, 526 nm and 682 nm, which are attributed to the radiative recombination of ZnO and DLC, respectively. The Commission International de l’Eclairage (CIE) 1931 (x, y) chromaticity space of ZnO/DLC thin films indicates that the visible PL spectrum is very close to the standard white-light region. |
Hits: 4425 |
Download times: 502 |
|
View Full Text Download reader |
|
|
|