Pulsed laser deposition of Mn doped CdSe quantum dots for improved solar cell performance

Abstract

Articles you may be interested inGreen synthesis of highly efficient CdSe quantum dots for quantum-dots-sensitized solar cells Optimization of growth conditions of type-II Zn(Cd)Te/ZnCdSe submonolayer quantum dot superlattices for intermediate band solar cells J. Vac. Sci. Technol. B 31, 03C119 (2013); 10.1116/1.4797486 CdSe quantum dots synthesized by laser ablation in water and their photovoltaic applications

High performance of Mn-doped CdSe quantum dot sensitized solar cells based on the vertical ZnO nanorod arrays

“…3(a) Mn 2p spectra could be deconvoluted into three peaks by Gaussian fittings, which are located at 640.9, 651.3 and 652.2 eV. And these three peaks are corresponding to Mn 2þ 2p3/2, Mn 2þ 2p1/2 and Cd 3p1/2 respectively [34], indicating the major states of Mn ions presented in the film remain divalent Mn 2þ within CdSe matrix. Fig.…”

Influence of Quantum Dot Concentration on Carrier Transport in ZnO:TiO2 Nano-Hybrid Photoanodes for Quantum Dot-Sensitized Solar Cells

“…Unlike molecular dyes, inorganic QDs represent the next-generation of solar cell sensitizers and have demonstrated many advantages over dyes including a size-dependent band-gap tunable to the infrared (IR) range, high stability and resistance to oxidation, possibilities for multi-layering of materials, an ability to generate multiple excitons, and the many permutations of materials that can comprise them. [4,5] QDs can also be grown directly onto a photoanode using a variety of techniques. Some methods include chemical bath depositions (CBD), pulsed laser deposition (PLD), spin-casting, dip-coating or successive ionic layer adsorption and reaction (SILAR) [5,6,7].…”

Bandgap‐ and Radial‐Position‐Dependent Mn‐Doped Zn–Cu–In–S/ZnS Core/Shell Nanocrystals

“…Manganese‐doped semiconductor QDs have been widely studied over the past decade, because of their distinct optical and magneto‐optical properties . To date, many researchers have reported Mn 2+ emissions in doped semiconductor QDs.…”

“…Doped colloidal quantum dots (QDs), which are distinct from band-edge-emitting QDs, are gaining considerable attention because of their uniqueo ptical properties and potentiala pplications in biomedical diagnosis, QD solar cells, and light-emitting diode optoelectronics, among others. [1][2][3][4][5][6][7] As an emitter, these doped QDs could retain nearly all of the advantages of intrinsic QDs and also possess the additional merits of larger Stokes shifts to avoid self-absorption/energy transferw ith enhanced thermal and chemical stability, as well as longer lifetimes. [1][2][3][4][8][9][10][11] Recently,m uch effort has been devoted to the precise control of QD doping, which can create an opportunity for producing functional materials with new properties by controlling the chargec arriers and their recombination or separation in quantum-confined QDs.…”