TITLE

Synthesis and photovoltaic effect of vertically aligned ZnO/ZnS core/shell nanowire arrays

AUTHOR(S)
Wang, K.; Chen, J. J.; Zeng, Z. M.; Tarr, J.; Zhou, W. L.; Zhang, Y.; Yan, Y. F.; Jiang, C. S.; Pern, J.; Mascarenhas, A.
PUB. DATE
March 2010
SOURCE
Applied Physics Letters;3/22/2010, Vol. 96 Issue 12, p123105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A vertically aligned ZnO/ZnS core/shell nanowire array with type II band alignment was directly synthesized on an indium-tin-oxide glass substrate and the photovoltaic effect of the nanowire array was investigated. The epitaxial relationship, wurtzite (0001) matching zinc-blende (111), was observed in the ZnO/ZnS nano-heterostructure. ZnS coating is found to quench the photoluminescence of ZnO nanowires but enhance the photocurrent with faster response in the photovoltaic device, indicating improvement in charge separation and collection in the type II core/shell nanowire.
ACCESSION #
48837248

 

Related Articles

  • Electrical conduction and photoluminescence properties of solution-grown ZnO nanowires. Jones, Frank; Léonard, François; Talin, A. Alec; Bell, Nelson S. // Journal of Applied Physics;7/1/2007, Vol. 102 Issue 1, p014305 

    We report on the optical and electrical properties of zinc oxide nanorods synthesized in solution using Oswald ripening of ZnO nanodots with the addition of ethylenediamene growth directing agent. This method results in high quality, single crystalline ZnO nanorods that extend up to 3 μm in...

  • Angular dependent luminescence of individual suspended ZnO nanorods. Li, Wenliang; Gao, Min; Cheng, Rui; Zhang, Xiaoxian; Xie, Sishen; Peng, Lian-Mao // Applied Physics Letters;7/14/2008, Vol. 93 Issue 2, p023117 

    We report angular dependent microphotoluminescence measurements on individual suspended ZnO nanorods attached to sharp metal tips. The luminescence measured along and perpendicular to the axis of the same single nanorod indicates quantitatively that >99% of the near band edge emission can be...

  • Indirect optical transition due to surface band bending in ZnO nanotubes. Yang, L. L.; Zhao, Q. X.; Israr, M. Q.; Sadaf, J. R.; Willander, M.; Pozina, G.; Yang, J. H. // Journal of Applied Physics;Nov2010, Vol. 108 Issue 10, p103513 

    ZnO nanotubes (ZNTs) have been successfully evolved from ZnO nanorods (ZNRs) by a simple chemical etching process. Two peaks located at 382 and 384 nm in the UV emission region has been observed in the room temperature photoluminescence (PL) spectrum of ZNTs since the surface band bending in...

  • Photoluminescence and polarized photodetection of single ZnO nanowires. Fan, Zhiyong; Pai-chun Chang; Lu, Jia G.; Walter, Erich C.; Penner, Reginald M.; Chien-hung Lin; Lee, Henry P. // Applied Physics Letters;12/20/2004, Vol. 85 Issue 25, p6128 

    Single crystal ZnO nanowires are synthesized and configured as field-effect transistors. Photoluminescence and photoconductivity measurements show defect-related deep electronic states giving rise to green-red emission and absorption. Photocurrent temporal response shows that current decay time...

  • Photoluminescence study of ZnO nanowires grown by thermal evaporation on pulsed laser deposited ZnO buffer layer. Mohanta, Antaryami; Thareja, Raj K. // Journal of Applied Physics;Aug2008, Vol. 104 Issue 4, p044906 

    The ZnO nanowires are grown by thermal evaporation on pulsed laser deposited ZnO buffer layer on silicon. Photoluminescence of ZnO nanowires is studied at various temperatures in the range from 6 K to room temperature and varying excitation intensities. At 6 K, the photoluminescence profile of...

  • Quantum confinement effect in ZnO/Mg0.2Zn0.8O multishell nanorod heterostructures. Eue-Soon Jang; Jun Young Bae; Jinkyoung Yoo; Won Il Park; Dong-Wook Kim; Gyu-Chul Yi; T. Yatsui; M. Ohtsu // Applied Physics Letters;1/9/2006, Vol. 88 Issue 2, p023102 

    We report on photoluminescence measurements of Mg0.2Zn0.8O/ZnO/Mg0.2Zn0.8O multishell layers on ZnO core nanorods. Dominant excitonic emissions in the photoluminescence spectra show a blueshift depending on the ZnO shell layer thickness attributed to the quantum confinement effect in the nanorod...

  • Enhanced optical properties due to indium incorporation in zinc oxide nanowires. Farid, S.; Mukherjee, S.; Sarkar, K.; Mazouchi, M.; Stroscio, M. A.; Dutta, M. // Applied Physics Letters;1/11/2016, Vol. 108 Issue 2, p1 

    Indium-doped zinc oxide nanowires grown by vapor-liquid-solid technique with 1.6 at. % indium content show intense room temperature photoluminescence (PL) that is red shifted to 20 meV from band edge. We report on a combination of nanowires and nanobelts-like structures with enhanced optical...

  • Synthesis and Properties of ZnO Nano-ribbon and Comb Structures. Leung, Y. H.; Djurišić, A. B.; Xie, M. H. // AIP Conference Proceedings;2005, Vol. 772 Issue 1, p879 

    ZnO is of great interest for photonic applications due to its wide band gap (3.37 eV) and large exciton binding energy (60 meV). A large variety of fabrication methods and nanostructure morphologies was reported up to date for this material. Obtained morphologies include nanobelts or...

  • Effect of electroless copper on the growth of ZnO nanowires. Wen-Ting Chiou; Wan-Yu Wa; Jyh-Ming Ting // Journal of Materials Research;Sep2005, Vol. 20 Issue 9, p2348 

    ZnO nanowires along with ZnO thin films were obtained on copper-metallized silicon substrates using an radio frequency-reactive sputter-deposition technique. Residual tensile stresses were found in both the copper layer and the ZnO layer. The ZnO nanowires were observed exclusively at the grain...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics