Enormous enhancement in photocurrent generation using electrochemically fabricated goldnanostructures

Abstract

A self-assembled monolayer of porphyrins fabricated on the surface of an electrochemically deposited gold nanostructure exhibits enormous enhancement of photocurrent due to porphyrin excitation, especially in the near-infrared region, where localized surface plasmon resonance was responsible.

Effects of Gold Nanoparticles on Photocurrents of Zinc-Porphyrin-Viologen Linked Compound–Gold Nanoparticle Composite Films

“…However, most important issue is to improve the efficiency of photoelectric conversion. One of the methods for upgrading these devices is the use of localized surface plasmon resonance (LSPR) induced by the coupling of the incident electric field with the free electrons in the metal [1][2][3][4][5][6][7][8][9].…”

Effects of Silver and Gold Nanoparticles on Photon Upconversion Based on Sensitized Triplet-Triplet Annihilation

“…[1][2][3][4][5][6][7][8][9][10][11][12][13] Recently, we found the large enhancement of photocurrents of a porphyrin or a phthalocyanine derivative or a poly(3-hexylthiophene) as an organic dye in dye-metal NPs composite films on indium-tin-oxide (ITO) electrodes were performed by the electrostatic layer-by-layer adsorption technique [4][5][6][7][8][9][11][12][13] . We also found the remarkable enhancements of photocurrent responses in the composite films of donor -acceptor linked compound and metal NP [silver nanoparticle (AgNP) or gold nanoparticle (AuNP)] on ITO electrodes attributable to the combination of localized surface plasmon resonance (LSPR) due to AgNP or AuNP and photoinduced intramolecular electron-transfer.…”

Stable Plasmonic-Improved dye Sensitized Solar Cells by Silver Nanoparticles Between Titanium Dioxide Layers

“…Recently, it has been reported that Au and Ag NPs were used as light harvesting efficiency (LHE) factor [1,[6][7][8]. Till now only a few methods of using Ag NPs have been tested in dye synthesized solar cells which include using Ag@SiO 2 [1], atomic layer deposition of Ag NPs [8] and drop casting of Ag [9].…”