Preparation of highly pure CdSe hollow structures: Their PL and hydrogen absorption properties

Waheed S. Khan, Chuanbao Cao*, Faheem K. Butt, Zulfiqar Ali, Ayesha Ihsan, M. Tanveer, Imran Aslam, Ghulam Nabi, Asma Rehman, Tariq Mahmood, Sajad Hussain

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Here we report the preparation of highly pure cadmium selenide hollow structures (CSHSs) with 10-20 μm diameter via a solid state reaction under ammonia gas atmosphere. The as-prepared product was characterized using X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM). Room temperature photoluminescence (PL) studies exhibited an orange emission band at 1.76 eV which corresponds to the bandgap of CdSe. The hydrogen storage properties of CdSe hollow structures measured at 573 K exhibited a reasonable value of 1.0 wt% which is comparable with several reported results of other materials. This indicates the potential use of CSHSs in light emitting devices as well as an interesting material for hydrogen absorption research.

Original languageEnglish
Pages (from-to)263-266
Number of pages4
JournalMaterials Letters
Volume92
DOIs
Publication statusPublished - 2013

Keywords

  • CdSe
  • Hollow structures
  • Hydrogen storage properties
  • Optical materials and properties
  • Semiconductors

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