Journal ArticleDOI
Quantum Dot Solar Cells. Semiconductor Nanocrystals as Light Harvesters
Reads0
Chats0
TLDR
In this paper, three major ways to utilize semiconductor dots in solar cell include (i) metal−semiconductor or Schottky junction photovoltaic cell, (ii) polymer−smiconductor hybrid solar cell, and (iii) quantum dot sensitized solar cell.Abstract:
The emergence of semiconductor nanocrystals as the building blocks of nanotechnology has opened up new ways to utilize them in next generation solar cells. This paper focuses on the recent developments in the utilization of semiconductor quantum dots for light energy conversion. Three major ways to utilize semiconductor dots in solar cell include (i) metal−semiconductor or Schottky junction photovoltaic cell (ii) polymer−semiconductor hybrid solar cell, and (iii) quantum dot sensitized solar cell. Modulation of band energies through size control offers new ways to control photoresponse and photoconversion efficiency of the solar cell. Various strategies to maximize photoinduced charge separation and electron transfer processes for improving the overall efficiency of light energy conversion are discussed. Capture and transport of charge carriers within the semiconductor nanocrystal network to achieve efficient charge separation at the electrode surface remains a major challenge. Directing the future resear...read more
Citations
More filters
Journal ArticleDOI
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides.
TL;DR: This work reviews the historical development of Transition metal dichalcogenides, methods for preparing atomically thin layers, their electronic and optical properties, and prospects for future advances in electronics and optoelectronics.
Journal ArticleDOI
Dye-Sensitized Solar Cells
TL;DR: Dye-sensitized solar cells (DSCs) offer the possibilities to design solar cells with a large flexibility in shape, color, and transparency as mentioned in this paper, and many DSC research groups have been established around the world.
Journal ArticleDOI
Prospects of Colloidal Nanocrystals for Electronic and Optoelectronic Applications
TL;DR: Nanocrystals (NCs) discussed in this Review are tiny crystals of metals, semiconductors, and magnetic material consisting of hundreds to a few thousand atoms each that are among the hottest research topics of the last decades.
Journal ArticleDOI
A review on the visible light active titanium dioxide photocatalysts for environmental applications
Miguel Pelaez,Nicholas T. Nolan,Suresh C. Pillai,Michael K. Seery,Polycarpos Falaras,Athanassios G. Kontos,Psm Dunlop,Jwj Hamilton,John Byrne,Kevin E. O'Shea,Mh. Entezari,Dionysios D. Dionysiou +11 more
TL;DR: In this paper, the development of different strategies to modify TiO2 for the utilization of visible light, including non metal and/or metal doping, dye sensitization and coupling semiconductors are discussed.
Journal ArticleDOI
Perovskites: The Emergence of a New Era for Low-Cost, High-Efficiency Solar Cells
TL;DR: In this paper, the authors discussed the steps that have led to this discovery, and the future of this rapidly advancing concept have been considered, and it is likely that the next few years of solar research will advance this technology to the very highest efficiencies while retaining the very lowest cost and embodied energy.
References
More filters
Journal ArticleDOI
Solution-liquid-solid growth of semiconductor nanowires.
TL;DR: The serendipitously discovered solution-liquid-solid mechanism has been refined into a nearly general synthetic method for semiconductor nanowires that appears to be advantageous for producing the smallest nanowire diameters and for variation and control of surface ligation.
Journal ArticleDOI
Charge injection and transport in films of CdSe nanocrystals
David S. Ginger,Neil C. Greenham +1 more
TL;DR: In this paper, the authors studied charge injection and charge transport in thin disordered films of CdSe nanocrystals between metal electrodes and found that the photocurrent action spectra follow the quantum-confined absorption spectra of the nanoparticles.
Journal ArticleDOI
Hybrid solar cells
TL;DR: In this paper, a short review on the concepts of organic/inorganic "hybrid" solar cells is presented, which consists of a combination of both organic and inorganic materials and combines the unique properties of inorganic semiconductors with the film forming properties of conjugated polymers.
Journal ArticleDOI
Growth of vertically aligned Si wire arrays over large areas (>1 cm^2) with Au and Cu catalysts
Brendan M. Kayes,Michael A. Filler,Morgan C. Putnam,Michael D. Kelzenberg,Nathan S. Lewis,Harry A. Atwater +5 more
TL;DR: In this paper, vertically oriented Si wires with diameters of 1.5 µm and lengths of up to 75 µm were grown over areas > 1 cm^2 by photolithographically patterning an oxide buffer layer, followed by vapor-liquid solid growth with either Au or Cu as the growth catalyst.
Journal ArticleDOI
Mapping local photocurrents in polymer/fullerene solar cells with photoconductive atomic force microscopy.
TL;DR: It is demonstrated that photoconductive atomic force microscopy (pcAFM) can be used to map local photocurrents with 20 nm resolution in donor/acceptor blend solar cells of the conjugated polymer poly[2-methoxy-5-(3',7'-dimethyloctyl-oxy)-1,4-phenylene vinylene] (MDMO-PPV) with the fullerene (6,6)-phenyl-C61-butyric