Charge Density Dependent Mobility of Organic Hole-Transporters and Mesoporous TiO2Determined by Transient Mobility Spectroscopy: Implications to Dye-Sensitized and Organic Solar Cells

2013 ◽  
Vol 25 (23) ◽  
pp. 3227-3233 ◽  
Author(s):  
Tomas Leijtens ◽  
Jongchul Lim ◽  
Joël Teuscher ◽  
Taiho Park ◽  
Henry J. Snaith
Keyword(s):  
Solar Cells ◽  
Charge Density ◽  
Organic Solar Cells ◽  
Density Dependent ◽  
Dye Sensitized

Organic and nano-structured composite photovoltaics: An overview

2005 ◽  
Vol 20 (12) ◽  
pp. 3167-3179 ◽  
Author(s):  
Sophie E. Gledhill ◽  
Brian Scott ◽  
Brian A. Gregg
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Organic Materials ◽  
Low Cost ◽  
Open Circuit ◽  
Charge Generation ◽  
Dye Sensitized ◽  
Excitonic Solar Cells

Organic photovoltaic devices are poised to fill the low-cost, low power niche in the solar cell market. Recently measured efficiencies of solid-state organic cells are nudging 5% while Grätzel’s more established dye-sensitized solar cell technology is more than double this. A fundamental understanding of the excitonic nature of organic materials is an essential backbone for device engineering. Bound electron-hole pairs, “excitons,” are formed in organic semiconductors on photo-absorption. In the organic solar cell, the exciton must diffuse to the donor–accepter interface for simultaneous charge generation and separation. This interface is critical as the concentration of charge carriers is high and recombination here is higher than in the bulk. Nanostructured engineering of the interface has been utilized to maximize organic materials properties, namely to compensate the poor exciton diffusion lengths and lower mobilities. Excitonic solar cells have different limitations on their open-circuit photo-voltages due to these high interfacial charge carrier concentrations, and their behavior cannot be interpreted as if they were conventional solar cells. This article briefly reviews some of the differences between excitonic organic solar cells and conventional inorganic solar cells and highlights some of the technical strategies used in this rapidly progressing field, whose ultimate aim is for organic solar cells to be a commercial reality.

scholarly journals Recent Advances in Dye Sensitized Solar Cells

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Umer Mehmood ◽  
Saleem-ur Rahman ◽  
Khalil Harrabi ◽  
Ibnelwaleed A. Hussein ◽  
B. V. S. Reddy
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Factors Affecting ◽  
Dye Sensitized ◽  
Working Principle ◽  
Commercial Applications ◽  
Silicon Based ◽  
Sensitized Solar Cells

Solar energy is an abundant and accessible source of renewable energy available on earth, and many types of photovoltaic (PV) devices like organic, inorganic, and hybrid cells have been developed to harness the energy. PV cells directly convert solar radiation into electricity without affecting the environment. Although silicon based solar cells (inorganic cells) are widely used because of their high efficiency, they are rigid and manufacturing costs are high. Researchers have focused on organic solar cells to overcome these disadvantages. DSSCs comprise a sensitized semiconductor (photoelectrode) and a catalytic electrode (counter electrode) with an electrolyte sandwiched between them and their efficiency depends on many factors. The maximum electrical conversion efficiency of DSSCs attained so far is 11.1%, which is still low for commercial applications. This review examines the working principle, factors affecting the efficiency, and key challenges facing DSSCs.

scholarly journals Applications of PEDOT:PSS in Solar Cells

2021 ◽  
pp. 40-76
Author(s):  
G.R. Nishad
Keyword(s):  
Solar Cells ◽  
Flexible Electronics ◽  
Organic Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Polymer Materials ◽  
Hybrid Solar Cells ◽  
Dye Sensitized ◽  
The Family ◽  
Silicon Based ◽  
Sensitized Solar Cells

Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) is increasingly being used in the field of printed and flexible electronics in the form of electrode as well as intermediate layer. PEDOT:PSS belongs to the family of intrinsically conducting polymer materials whose members can conduct electricity in spite of their organic nature without the presence of metals. It is non-toxic, stable in the presence of air and humidity. Above all, it can be easily processed through conventional means. This chapter deals with the applications of PEDOT:PSS in organic solar cells (OSCs), dye sensitized solar cells (DSSCs) and silicon based hybrid solar cells. PEDOT:PSS is being used as electrode, buffer layer and hole conductive layer. It could manipulate the catalytic nature of counter electrode used in DSSCs. Whereas it may help to manipulate the morphological character in Si based hybrid solar cells along with enhancement of cell performance.

Recent advances and comprehensive insights on nickel oxide in emerging optoelectronic devices

2020 ◽  
Vol 4 (9) ◽  
pp. 4415-4458
Author(s):  
Yongshuai Gong ◽  
Shuai Zhang ◽  
Huaizhi Gao ◽  
Zongwen Ma ◽  
Siqian Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Nickel Oxide ◽  
Organic Solar Cells ◽  
Perovskite Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Optoelectronic Devices ◽  
Light Emitting ◽  
Dye Sensitized ◽  
Recent Advances ◽  
Sensitized Solar Cells

A summary of recent advances and comprehensive insights of NiO in emerging optoelectronic devices, such as dye-sensitized solar cells (DSSCs), perovskite solar cells (PerSCs), organic solar cells (OSCs) and various light-emitting diodes (LEDs).

Review on Dye-Sensitized Solar Cells (DSSCs)

2018 ◽  
pp. 29-34
Author(s):  
Anteneh Andualem ◽  
Solomon Demiss
Keyword(s):  
Renewable Energy ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Renewable Energy Resources ◽  
Dye Sensitized ◽  
Current Century ◽  
High Conversion Rate ◽  
Sensitized Solar Cells

Our planet’s community largely depends on a snug energy supply, and non-renewable energy such as fossil fuel has been serving as the most trustworthy energy source from its discovery time of 1673 till to the current century. However, non-renewable energy resources are rapidly decreased per year due to increasing the energy consumption rate. To address this issue, renewable energy chiefly photovoltaic energy has attracted much though, because it directly converts solar energy into electrical without environment pollution. For the past several years, different photovoltaic devices like inorganic organic, and hybrid solar cells are invented for different application purposes. Regardless of its high conversion rate of silicon based solar cells, the high module cost and complicated production process restricted their application. Research has been focused on alternative organic solar cells for their inherent low module cost and easy fabrication processes. From all organic solar cells, Dye-Sensitized Solar Cells (DSSCs) are the most efficient, low cost and easily implemented technology. This review paper focus on clarifying the technological meaning of DSSCs, Types of DSSCs materials, working principle, advantages, power full applications area of DSSCs, the efficiency and challenges for R&D of DSSCs to upgrade the current efficiency.

scholarly journals Experimental and theoretical charge-density analysis of 1,4-bis(5-hexyl-2-thienyl)butane-1,4-dione: applications of a virtual-atom model

2016 ◽  
Vol 72 (1) ◽  
pp. 75-86 ◽  
Author(s):  
Maqsood Ahmed ◽  
Ayoub Nassour ◽  
Sajida Noureen ◽  
Claude Lecomte ◽  
Christian Jelsch
Keyword(s):  
Solar Cells ◽  
Charge Density ◽  
Electron Density ◽  
Organic Solar Cells ◽  
Charge Densities ◽  
Atom Model ◽  
Residual Electron Density ◽  
Derived Properties ◽  
Density Values ◽  
Density Analysis

The experimental and theoretical charge densities of 1,4-bis(5-hexyl-2-thienyl)butane-1,4-dione, a precursor in the synthesis of thiophene-based semiconductors and organic solar cells, are presented. A dummy bond charges spherical atom model is applied besides the multipolar atom model. The results show that the dummy bond charges model is accurate enough to calculate electrostatic-derived properties which are comparable with those obtained by the multipolar atom model. The refinement statistics and the residual electron density values are found to be intermediate between the independent atom and the multipolar formalisms.

Controlling the processable ZnO and polythiophene interface for dye-sensitized thin film organic solar cells

2013 ◽  
Vol 536 ◽  
pp. 302-307 ◽  
Author(s):  
Sandeep K. Das ◽  
Katsunori Abe ◽  
Kenji Yoshino ◽  
Yuhei Ogomi ◽  
Shyam S. Pandey ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Dye Sensitized

scholarly journals The Applications of Polymers in Solar Cells: A Review

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 143 ◽  
Author(s):  
Wenjing Hou ◽  
Yaoming Xiao ◽  
Gaoyi Han ◽  
Jeng-Yu Lin
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Separation Efficiency ◽  
Perovskite Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Interface Layer ◽  
Buffer Layers ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The emerging dye-sensitized solar cells, perovskite solar cells, and organic solar cells have been regarded as promising photovoltaic technologies. The device structures and components of these solar cells are imperative to the device’s efficiency and stability. Polymers can be used to adjust the device components and structures of these solar cells purposefully, due to their diversified properties. In dye-sensitized solar cells, polymers can be used as flexible substrates, pore- and film-forming agents of photoanode films, platinum-free counter electrodes, and the frameworks of quasi-solid-state electrolytes. In perovskite solar cells, polymers can be used as the additives to adjust the nucleation and crystallization processes in perovskite films. The polymers can also be used as hole transfer materials, electron transfer materials, and interface layer to enhance the carrier separation efficiency and reduce the recombination. In organic solar cells, polymers are often used as donor layers, buffer layers, and other polymer-based micro/nanostructures in binary or ternary devices to influence device performances. The current achievements about the applications of polymers in solar cells are reviewed and analyzed. In addition, the benefits of polymers for solar cells, the challenges for practical application, and possible solutions are also assessed.

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