Photoluminescence of PdS2 and PdSe2 quantum dots

Xinyu Wang, Wayesh Qarony, Ping Kwong Cheng, Mohammad Ismail, Yuen Hong Tsang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

Group-10 transition metal dichalcogenide (TMD) materials have recently attracted considerable attention in optoelectronics applications. However, so far their quantum dot (QD) counterparts with photoluminescence (PL) nature still remain to be revealed. In this study, 2 typical types of group-10 TMD material (PdS2 and PdSe2) QDs are fabricated via liquid exfoliation using N-methyl-2-pyrrolidone (NMP) solvent. The absorption and PL spectra of these QD solutions are studied, exhibiting excitation wavelength-dependent behaviors and large Stokes shifts. Furthermore, the quantum yield and decay lifetime are also investigated and analyzed. The obtained results suggest promising optoelectronic applications with group-10 TMD QDs in the future.

Original languageEnglish
Pages (from-to)38077-38084
Number of pages8
JournalRSC Advances
Volume9
Issue number65
DOIs
Publication statusPublished - 21 Nov 2019

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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