Effect of Mn doping on the optical, structural and photoluminescence properties of nanostructured ZnO thin film synthesized by sol–gel technique

Xin, Mei; Hu, Li; Liu, Dongping; Yu, Naisen

doi:10.1016/j.spmi.2014.06.009

Cited by 35 publications

(21 citation statements)

References 27 publications

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“…Some authors affirm that this emission is completely absent and only nonradiative recombination in excited Mn-related centers occurs [2,3,24]. At the same time, PL bands at 2.12 eV (586 nm) [25], 2.07 eV (600 nm) [7], 1.95 eV (636 nm) [8] and 1.91 eV (650 nm) [9] were found in doped with manganese ZnO thin films [8,25], ceramics [9] and nanopowders [7], which was ascribed to the radiative intra-shell transitions in Mn ions. Intense emission bands at 2.0 eV (620 nm) and 1.69 eV (730 nm) were also observed in electroluminescence spectra of ZnO:Mn ceramics [26].…”

Section: Resultsmentioning

confidence: 94%

“…In addition, the presence of Mn-related band in ZnO:Mn emission spectrum is still a matter of debate. Some authors believe that a new emission band arises due to Mn doping [7][8][9][10], while the others assert that only redistribution of the intensities of initially present emission bands occurs [2][3][4][5]. Thus, to understand the mechanisms of the processes that result in modification of ZnO emission by the Mn doping further study is required.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Mn doping on ZnO defect-related emission

Stara¹

2017

Semicond. Phys. Quantum Electron. Optoelectron.

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Abstract. Defect related emission in undoped and doped with manganese ZnO ceramics was investigated. Mn concentration N Mn was varied from 10 19 to 10 21 cm -3.The samples were sintered for 3 hours in air at 1100 °C. The color of ZnO:Mn ceramics changed from yellow to reddish-brown with increasing the Mn content. Photoluminescence (PL) spectra of prepared samples were measured at room temperature and analyzed by Gaussian fitting. PL of undoped ceramics exhibited itself as intense broad band peaking at about 550 nm. Two effects were shown to occur as a result of Mn doping: i) drastic quenching of self-activated PL accompanied by gradual red-shift of spectral boundary of the quenching with increasing the Mn content; ii) appearance of a new emission band peaking at 645 nm that becomes dominant in the PL spectrum at N Mn = 10 20 cm -3 . The observed effects were believed to be due to re-absorption of self-activated ZnO emission by Mn-related centers. The following recombination in excited centers was supposed to occur by both radiative and nonradiative ways, the former being responsible for 645 nm PL band.

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Influence of Mn doping on ZnO defect-related emission

Stara¹

2017

Semicond. Phys. Quantum Electron. Optoelectron.

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“…Mn-doped ZnO has been widely investigated for their optical properties, magnetic properties, and sensing properties [14][15][16][17][18]. However, it has rarely been used as anode materials in LIBs.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Mn-Doped ZnO Porous Nanosheets as Anode Materials for Lithium Ion Batteries with a Better Cycle Durability

Wang¹,

Tang²,

Zhang³

et al. 2016

Nano Online

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Porous Zn 1 − x Mn x O (x = 0.1, 0.2, 0.44) nanosheets were prepared by a low-cost, large-scale production and simple approach, and the applications of these nanosheets as an anode material for Li-ion batteries (LIBs) were explored. Electrochemical measurements showed that the porous Zn 0.8 Mn 0.2 O nanosheets still delivered a stable reversible capacity of 210 mA h g −1 at a current rate of 120 mA g −1 up to 300 cycles. These results suggest that the facile synthetic method of producing porous Zn 0.8 Mn 0.2 O nanostructure can realize a better cycle durability with stable reversible capacity.

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“…[8][9][10]. Transition metal doped ZnO nanoparticles were prepared by different methods such as co-precipitation method [11], wet-chemical method [12], sol-gel [13], radio frequency magnetron sputtering [14] and pulsed laser deposition [15]. Among these methods, sol-gel is attracting increased interests because it offers several advantages such as high chemical homogeneity, low processing temperature, possibility of controlling the size and morphology of particles, simplicity and low cost [16][17][18].…”

Section: Introductionmentioning

confidence: 99%