Photovoltaic Properties of Bi2S3 and CdS Quantum Dot Sensitized TiO2 Solar Cells

Quantum Dot-sensitized Solar Cells: A Review

“…The QDs employed in QDSSCs as sensitizers including Ag2S [76], Bi2S3 [77], CdS [78], CdSe [79], CdTe [80], CuInS 2 [81], [82], Cu2ZnSnS 4 [83], InAs [84], In2S 3 [85], InP [86], PbS [87], [88], PbSe [89], Si [90], graphene [91] and so on. Among these sensitizers, Cd chalcogenides QDs have drawn great attention because of their relatively high stability in QDSSCs even though they may be unstable under visible light.…”

Photoelectric properties of low temperature solution‐processed three‐dimensional Bi 2 S 3 crystals

“…During these years, three‐dimensional (3D) structured materials have attracted considerable attention due to their excellent properties of electric, photo‐catalytic, as compared to the bulk counterpart, which was because of their larger specific surface area and light trapping effect [1]. Bi 2 S 3 is a direct bandgap inorganic semiconductor material and has broad prospects in the fields of photovoltaic materials and photocatalysis [2, 3]. Also, the advantages like low toxicity, narrow bandgap (1.3–1.7 eV) [4], strong absorption coefficient (∼105 cm −1 ) [5] and high electron transport rate (28 cm 2 V −1 S −1 ) [6], make it an admirable material for efficient photovoltaic devices and photodiode arrays [7].…”

Effect of the electrophoretic deposition of Au NPs in the performance CdS QDs sensitized solar Cells

“…This last layer will scatter the light that has passed through the first two layers without been absorbed, giving a second chance to be absorbed by the QDs. [4,11,42,43] The films were sintered for 30 min at 450 °C to obtain a good electrical contact between nanoparticles.…”

“…QD-sensitized TiO 2 solar cells have been reported to have quantum efficiency (QE) as high as 80%, [1][2][3][4][5][6][7][8][9][10][11] reaching photoconversion efficiencies (η) of 8%. [3,12].…”

“…The semiconductor Quantum Dots (QDs) have attract significant attention as possible candidates for increase the energy conversion efficiency in the solar cells, since their theoretical maximum efficiency is 44% QDs, e.g., CdSe, CdTe, CdS, PbS, PbSe, Bi 2 S 3 , and InP, [1][2][3][4][5][6][7][8][9][10][11] have been studied due to several advantage of the QDs, e.g.,have large extinction coefficients in the visible region and, after band gap excitation, undergo charge separation, injecting electrons to the conduction band of the metal oxide. QD-sensitized TiO 2 solar cells have been reported to have quantum efficiency (QE) as high as 80%, [1][2][3][4][5][6][7][8][9][10][11] reaching photoconversion efficiencies (η) of 8%.…”