Pulsed laser deposition of graphite in air and in vacuum for field emission studies

Silver nanoparticle films by flowing gas atmospheric pulsed laser deposition and application to surface‐enhanced Raman spectroscopy

“…While understanding the potential issues of APLD from standpoint of fundamental science and technological impact, previously, in 2004, the first research was conducted in this direction 11 . Looking into the potential impact of this study, later on, in the last two decades, tremendous research were further projected by the scientific community with the aim to bring the nanofabrication method one step closer for practical applications and interesting results were reported 11‐22 . Jadhav et al 12 performed a comparative study of graphite films produced in vacuum and air with the substrate at 50 and 2 to 3 mm, respectively, and laser fluence values of 10 and 20 J cm −2 .…”

“…11 Looking into the potential impact of this study, later on, in the last two decades, tremendous research were further projected by the scientific community with the aim to bring the nanofabrication method one step closer for practical applications and interesting results were reported. [11][12][13][14][15][16][17][18][19][20][21][22] Jadhav et al 12 performed a comparative study of graphite films produced in vacuum and air with the substrate at 50 and 2 to 3 mm, respectively, and laser fluence values of 10 and 20 J cm −2 . A nanocrystalline graphite film with superior field emission behavior was obtained in air compared to an amorphous film formed in vacuum.…”

“…[4][5][6][7][8][9] Different approaches for the synthesis of these NP films exist today and have been productively applied; however, APLD emerges as the most recent and striking gas-phase approach utilized for nanofabrication. [11][12][13][14][15][16][17][18][19][20][21][22][23][24] For laser ablation at atmospheric pressure, a high-density plasma (varying from n e 1.59 to 2.27× 10 18 cm −3 ) is formed for various ambient environments compared to a free expansion. 14 Thus for APLD, the density of laser-produced plasma plume is several orders of magnitude higher than encountered for a low-pressure plasma in vacuum or background gas.…”

“…The noble metal NP films of gold (Au) and silver (Ag) are the most commonly studied materials in scientific research due to their multitude size‐dependent physicochemical and optical properties related to surface plasmons 4‐9 . Different approaches for the synthesis of these NP films exist today and have been productively applied; however, APLD emerges as the most recent and striking gas‐phase approach utilized for nanofabrication 11‐24 . For laser ablation at atmospheric pressure, a high‐density plasma (varying from n e 1.59 to 2.27× 10 18 cm −3 ) is formed for various ambient environments compared to a free expansion 14 .…”

Cold Plasma Jet Coupled Nanosecond Laser Ablation Scheme For Plasmonic Nanostructured Surfaces

“…In the past two decades, tremendous efforts were devoted to the practical realization of APLD and a wide range of nanomaterials were produced. [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] Although APLD has shown promise, there have been some issues that need to be addressed such as localized surface deposition, surface etching, and small target-to-substrate distance. Recent studies conducted by Khan et al have demonstrated the viability of APLD with a vertically directed flowing gas jet of 32 ms −1 , which has effectively transported the particle aerosol onto the substrate.…”