Nanocrystalline Materials for Hybrid Photovoltaic Devices

2015 ◽  
Vol 1116 ◽  
pp. 45-50
Author(s):  
Tarek I.A. Mashreki ◽  
Mohammad Afzaal
Keyword(s):  
Solar Cells ◽  
Large Scale ◽  
Low Cost ◽  
Scale Production ◽  
Photovoltaic Devices ◽  
Large Scale Production ◽  
Semiconductor Nanomaterials ◽  
Inorganic Semiconductor ◽  
Thin Film Composites ◽  
Film Composites

Nanocomposites containing inorganic semiconductor nanomaterials are of tremendous interest for low-cost 3rd generation solar cells. A variety of possible materials and structures could be potentially used to reduce processing costs which is highly attractive for large scale production of solar cells. Controlling the morphology and surface chemistry of nanomaterials remains a key challenge that has major knock-on effects in devices. Herein, an attempt is made to highlight some of the challenges and the possible solutions for depositing high quality thin film composites for solar cell devices.

scholarly journals Characterization of MOCVD-Prepared CIS Solar Cells

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7721
Author(s):  
Seung Hoon Lee ◽  
Gyu Hyun Lee ◽  
Hae-Seok Lee ◽  
Donghwan Kim ◽  
Yoonmook Kang
Keyword(s):  
Solar Cells ◽  
Large Scale ◽  
Chemical Vapor ◽  
Energy Conversion Efficiency ◽  
Production Costs ◽  
Organic Chemical ◽  
Scale Production ◽  
Photovoltaic Devices ◽  
Large Scale Production ◽  
Cigs Solar Cells

Chalcopyrite Cu(In,Ga)Se2 (CIGS) solar cells prepared via metal-organic chemical vapor deposition (MOCVD) are one of the candidates for highly advanced photovoltaic devices. This is because of their effectiveness and potential for reducing production costs through large-scale production. However, research on MOCVD-prepared solar cells is progressing slower than that on other types of solar cells, primarily because the preparation of CuInSe2 (CIS)-based films via MOCVD is relatively more sophisticated. In this study, we analyzed CIS solar cells prepared via three-stage MOCVD and processed with relatively simple precursors and techniques. We achieved an energy-conversion efficiency of 7.39% without applying a buffer layer. Instead, we applied a Cu-deficient layer to create a buried pn junction. Ultimately, we demonstrated that the fabrication of fully-MOCVD-processed CIS photovoltaic devices is feasible.

scholarly journals Thermoelectric Performance of Mechanically Mixed BixSb2-xTe3—ABS Composites

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1706
Author(s):  
Zacharias Viskadourakis ◽  
Argiri Drymiskianaki ◽  
Vassilis M. Papadakis ◽  
Ioanna Ioannou ◽  
Theodora Kyratsi ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Large Scale ◽  
Low Cost ◽  
Acrylonitrile Butadiene Styrene ◽  
Thermoelectric Performance ◽  
Scale Production ◽  
Bismuth Antimony Telluride ◽  
Mechanical Mixing ◽  
Large Scale Production ◽  
Bi Doping

In the current study, polymer-based composites, consisting of Acrylonitrile Butadiene Styrene (ABS) and Bismuth Antimony Telluride (BixSb2−xTe3), were produced using mechanical mixing and hot pressing. These composites were investigated regarding their electrical resistivity and Seebeck coefficient, with respect to Bi doping and BixSb2-xTe3 loading into the composite. Experimental results showed that their thermoelectric performance is comparable—or even superior, in some cases—to reported thermoelectric polymer composites that have been produced using other complex techniques. Consequently, mechanically mixed polymer-based thermoelectric materials could be an efficient method for low-cost and large-scale production of polymer composites for potential thermoelectric applications.

scholarly journals Fullerene-free polymer solar cells processed from non-halogenated solvents in air with PCE of 4.8%

2017 ◽  
Vol 53 (6) ◽  
pp. 1164-1167 ◽  
Author(s):  
Sergey V. Dayneko ◽  
Arthur D. Hendsbee ◽  
Gregory C. Welch
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Large Scale ◽  
Polymer Solar Cells ◽  
Scale Production ◽  
Large Scale Production ◽  
Halogenated Solvents

Progress towards practical organic solar cells amenable to large scale production is reported.

scholarly journals Recovery of FTO coated glass substrate via environment-friendly facile recycling perovskite solar cells

RSC Advances ◽  
2021 ◽  
Vol 11 (24) ◽  
pp. 14534-14541
Author(s):  
M. S. Chowdhury ◽  
Kazi Sajedur Rahman ◽  
Vidhya Selvanathan ◽  
A. K. Mahmud Hasan ◽  
M. S. Jamal ◽  
...  
Keyword(s):  
Solar Cells ◽  
Glass Substrate ◽  
Large Scale ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Potential Candidate ◽  
Photovoltaic Devices ◽  
Coated Glass Substrate ◽  
Environment Friendly ◽  
Coated Glass

Organic–inorganic perovskite solar cells (PSCs) have recently emerged as a potential candidate for large-scale and low-cost photovoltaic devices.

scholarly journals Extensive Screening of Green Solvents for Safe and Sustainable UiO-66 Synthesis

2020 ◽  
Author(s):  
Diletta Morelli Venturi ◽  
Filippo Campana ◽  
Fabio Marmottini ◽  
Ferdinando Costantino ◽  
Luigi Vaccaro
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Dimethyl Formamide ◽  
Scale Production ◽  
Green Solvents ◽  
High Quality ◽  
Color Code ◽  
Large Scale Production ◽  
Metal Organic

<p>Zirconium based Metal-Organic Framework UiO-66 is to date considered one of the benchmark compound among stable MOFs and it has attracted a huge attention for its employment in many strategic applications. Large scale production of UiO-66 for industrial purposes requires the use of safe and green solvents, fulfilling the green chemistry principles and able to replace the use of <i>N,N</i>-Dimethyl-Formamide (DMF), which, despite its toxicity, is still considered the most efficient solvent for obtaining UiO-66 of high quality. Herein we report on a survey of about 40 different solvents with different polarity, boiling point and acidity, used for the laboratory scale synthesis of high quality UiO-66 crystals. The solvents were chosen according the European REACH Regulation 1907/2006 among those having low cost, low toxicity and fully biodegradable. Concerning MOF synthesis, the relevant parameters chosen for establishing the quality of the results obtained are the degree are the crystallinity, microporosity and specific surface area, yield and solvent recyclability. Taking into account also the chemical physical properties of all the solvents, a color code was assigned in order to give a final green assessment for the UiO-66 synthesis. Defectivity of the obtained products, the use of acidic modulators and the use of alternative Zr-salts have been also taken into consideration. Preliminary results lead to conclude that GVL (γ-valerolactone) is among the most promising solvents for replacing DMF in UiO-66 MOF synthesis. </p>

scholarly journals Low-cost Large Scale Vermicompost Unit

2021 ◽  
Vol 2115 (1) ◽  
pp. 012026
Author(s):  
Sonam Solanki ◽  
Gunendra Mahore
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Small Scale ◽  
Scale Production ◽  
Key Innovation ◽  
Main Challenge ◽  
Long Run ◽  
Large Scale Production ◽  
Term Maintenance

Abstract In the current process of producing vermicompost on a large-scale, the main challenge is to keep the worms alive. This is achieved by maintaining temperature and moisture in their living medium. It is a difficult task to maintain these parameters throughout the process. Currently, this is achieved by building infrastructure but this method requires a large initial investment and long-run maintenance. Also, these methods are limited to small-scale production. For large-scale production, a unit is developed which utilises natural airflow with water and automation. The main aim of this unit is to provide favourable conditions to worms in large-scale production with very low investment and minimum maintenance in long term. The key innovation of this research is that the technology used in the unit should be practical and easy to adopt by small farmers. For long-term maintenance of the technology lesser number of parts are used.

scholarly journals Extensive Screening of Green Solvents for Safe and Sustainable UiO-66 Synthesis

2020 ◽  
Author(s):  
Diletta Morelli Venturi ◽  
Filippo Campana ◽  
Fabio Marmottini ◽  
Ferdinando Costantino ◽  
Luigi Vaccaro
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Dimethyl Formamide ◽  
Scale Production ◽  
Green Solvents ◽  
High Quality ◽  
Color Code ◽  
Large Scale Production ◽  
Metal Organic

<p>Zirconium based Metal-Organic Framework UiO-66 is to date considered one of the benchmark compound among stable MOFs and it has attracted a huge attention for its employment in many strategic applications. Large scale production of UiO-66 for industrial purposes requires the use of safe and green solvents, fulfilling the green chemistry principles and able to replace the use of <i>N,N</i>-Dimethyl-Formamide (DMF), which, despite its toxicity, is still considered the most efficient solvent for obtaining UiO-66 of high quality. Herein we report on a survey of about 40 different solvents with different polarity, boiling point and acidity, used for the laboratory scale synthesis of high quality UiO-66 crystals. The solvents were chosen according the European REACH Regulation 1907/2006 among those having low cost, low toxicity and fully biodegradable. Concerning MOF synthesis, the relevant parameters chosen for establishing the quality of the results obtained are the degree are the crystallinity, microporosity and specific surface area, yield and solvent recyclability. Taking into account also the chemical physical properties of all the solvents, a color code was assigned in order to give a final green assessment for the UiO-66 synthesis. Defectivity of the obtained products, the use of acidic modulators and the use of alternative Zr-salts have been also taken into consideration. Preliminary results lead to conclude that GVL (γ-valerolactone) is among the most promising solvents for replacing DMF in UiO-66 MOF synthesis. </p>

Porous micro-spherical LiFePO4/CNT nanocomposite for high-performance Li-ion battery cathode material

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37830-37836 ◽  
Author(s):  
Wei Wei ◽  
Linlin Guo ◽  
Xiaoyang Qiu ◽  
Peng Qu ◽  
Maotian Xu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
High Performance ◽  
Large Scale ◽  
Low Cost ◽  
Scale Production ◽  
Li Ion Battery ◽  
Excellent Performance ◽  
Large Scale Production ◽  
Li Ion

Although many routes have been developed that can efficiently improve the electrochemical performance of LiFePO4 cathodes, few of them meet the urgent industrial requirements of large-scale production, low cost and excellent performance.

Safety comparisons of various gas source deposition technologies for large-scale production of III–V solar cells

Solar Cells ◽  
1987 ◽  
Vol 19 (3-4) ◽  
pp. 245-257 ◽  
Author(s):  
L.D. Partain ◽  
L.M. Fraas ◽  
P.S. McLeod ◽  
J.A. Cape
Keyword(s):  
Solar Cells ◽  
Large Scale ◽  
Scale Production ◽  
Gas Source ◽  
Large Scale Production
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