Laser-induced selective metallization of polypropylene doped with multiwall carbon nanotubes

Percolation effect of a Cu layer on a MWCNT/PP nanocomposite substrate after laser direct structuring and autocatalytic plating

“…The amount of Cu on MWCNT/PP and sheet resistance depended on the laser irradiation dose in LDS treatment. 14 The Cu deposition quantity increases and sheet resistance deceases from the 10 7 U sq À1 (Fig. 2a-i) to the 0.10 U sq À1 (Fig.…”

“…Several methods are usually applied to make an electric circuit on plastic surfaces: laser-direct-imaging, 5 laserinduced selective activation (LISA) [6][7][8][9][10] and laser-directstructuring (LDS). [11][12][13][14] The LDS method was invented for metal deposition selectively on plastic surfaces. 15 LDS uses precursors mixed in a plastic substrate matrix.…”

“…By using collinear four-point probe technique, we have demonstrated that increased electrical conductivity of the laser-activated areas enabled the catalytic reaction of reducer in the electroless plating bath. 14 The sheet resistance is the most critical electrical characteristic of the conductive layer dened by the inverse of the product of layer thickness and specic electrical conductance. 16 However, the porous Cu layer deposited on the laser patterned plastic does not have well-dened metal/plastic boundary.…”

Glass Fiber Reinforced Polycarbonate Composites for Laser Direct Structuring and Electroless Copper Plating

“…Besides, functionalization of polybutylene terephthalate by adding commercially available additives for LDS opened the possibility to use such technique in the field of printed electronic circuit carriers . Ratautas et al studied functionalization of polypropylene doped with multiwall carbon nanotubes for LDS. Reorientation of multiwall carbon nanotubes into the connecting structure occurred when polypropylene was melted by laser.…”

Laser induced selective electroless copper plating on polyurethane using EDTA-Cu as active material

“…Therefore, choosing of suitable active materials, reducing their particle size, increasing the uniformity of particles and minimizing the laser heat affected zone, are the main ways to improve the fineness of FCEM. In recent years, a variety of materials has been used as active materials to prepare FCEMs, such as palladium oxide [4][5][6][7], copper aluminate [8] and carbon nanotubes [9][10][11][12]. These materials, however, showed different processing problems that limited development of FCEMs.…”