Formation of ZnSe and CdS quantum dots via laser ablation in liquids

Fabrication and photocatalytic property of α-Bi2O3 nanoparticles by femtosecond laser ablation in liquid

“…Hence preparation of nanostructured Bi 2 O 3 photocatalysts doubtless deserves to be taken into account in future research. In recent years, laser ablation of a solid target in a liquid environment has been widely used in the synthesis of nanocrystals and fabrication of nanostructures due to the following advantages: (i) a chemically "simple and clean" synthesis [10][11][12], (ii) an ambient conditions not extreme temperature and pressure [13][14][15], (iii) the new phase formation of nanocrystals may involve in both liquid and solid [10], and (iv) structure, size, and shape of the synthesized nanocrystals can be controlled by tuning laser parameters and applied assistances [16][17][18][19][20][21][22][23]. Furthermore, compared with other normal laser ablation, femtosecond laser ablation has some advantages, such as higher temperature and higher pressure in a local volume can be achieved, higher temperature phase materials can be fabricated, and smaller nanocrystals with narrow size distribution can be obtained [10,12].…”

Synthesis, Self-assembly and Optoelectronic Properties of Monodisperse ZnO Quantum Dots

“…Pulsed Laser Ablation is a novel technique to fabricate nanomaterials, which is based on ablating metals or metal compound materials using a laser with high pulsed power, [90][91][92][93][94]. The whole process can take place in either liquid environment or a vacuum chamber, known as Liquid-phase Pulsed Laser Ablation (LP-PLA or PLA) and Pulsed Laser Deposition (PLD), respectively.…”

“…The whole process can take place in either liquid environment or a vacuum chamber, known as Liquid-phase Pulsed Laser Ablation (LP-PLA or PLA) and Pulsed Laser Deposition (PLD), respectively. Pulsed laser ablation method, which has been proven to be an effective method for fabrication of nano-sized metal QDs, including Au, Ag, Ti and Ni [90,[95][96][97], is also a promising method to fabricate QDs of compound semiconductors, such as FeO, ZnO, CdS and TiO 2 [55,91,92,98]. Ajimsha et al [55] prepared ZnO QDs with an average size of 7nm in various liquid media using PLA method ( Figure 5).…”

Preparation and Study of Colloidal CdO Nanoparticles by Laser Ablation in Polyvinylpyrrolidone

“…The most widely used synthetic routes to synthesize CdO and CdTe nanostructures use aqueous solutions facing various functional groups (e.g polar and unpolar thiols, amines and others) are employed to stabilize the particles [2]. Purely physical production methods which allow the synthesis of uncapped particles were limited to mechanical ball milling processes [3][4][5] and laser ablation in liquids which used to generate noble metal nanoparticles in suspension is known since 1993 [6][7][8][9] and was also applied to several non-metallic systems [9,10]. Also semiconductors nanoparticles were fabricated by other methods, such as deposition on different substrates by pulsed electron deposits technique [11], pulsed laser deposition [12] or pulsed laser ablation in argon gas atmosphere and methanol vapors [13] as well as by laser ablation in liquid environments (usually using long pulse laser sources at high fluence) [14].…”