The impact of precursor water content on solution-processed organometal halide perovskite films and solar cells

2015 ◽  
Vol 3 (37) ◽  
pp. 19123-19128 ◽  
Author(s):  
Bert Conings ◽  
Aslihan Babayigit ◽  
Tim Vangerven ◽  
Jan D'Haen ◽  
Jean Manca ◽  
...  
Keyword(s):  
Solar Cells ◽  
Water Content ◽  
Large Scale ◽  
Photovoltaic Performance ◽  
Scale Production ◽  
Large Scale Production ◽  
Organometal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
The Impact

In this paper, the impact of the water content (up to 10 vol%) in DMF-based precursors on organometal halide perovskites is investigated. The photovoltaic performance is found not to be affected, thus relaxing the conditions for large-scale production of this upcoming photovoltaic technology.

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.

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.

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

scholarly journals Call for papers on special issue “Perovskite photovoltaics and optoelectronic devices”

2020 ◽  
Vol 2 (1) ◽  
pp. 049-049
Keyword(s):  
Solar Cells ◽  
Large Scale ◽  
Perovskite Solar Cells ◽  
Optoelectronic Devices ◽  
Scale Production ◽  
Special Issue ◽  
Device Structure ◽  
Stability Performance ◽  
Large Scale Production ◽  
The Stability

Aim & Scope: Metal halide perovskitehave been regarded as promising classes of materials for photovoltaics and optoelectronic devices, owing to the unique characteristics, such as long charge carrier diffusion lengths, precise tunable bandgaps, high light absorption coefficients, and high defect tolerance. Research on perovskite in the fields including photovoltaics, light-emitting diodes, lasers, X-ray imaging, and photodetectors has been gaining increasingly interest over the past years. Up to now, the efficiency of perovskite solar cells has grown from 3.8% in single-junction solar cells in 2009 to more than 25%, catching up the efficiency level of commercial silicon cells. Up to now, the key issues of perovskite photovoltaics and optoelectronic devices have become the stability, performance and large-scale production. This requires optimization of the film morphology, interface, device structure and the fabrication process. A lot work has been done on this issue and has made remarkable progress. We kindly invite you to submit a manuscript(s) for this Special Issue. Full papers, communications, and reviews are all welcome.

scholarly journals Balancing Boutique-Level Quality and Large-Scale Production: The Impact of “More Product, Less Process” on Digitization in Archives and Special Collections

2012 ◽  
Vol 13 (1) ◽  
pp. 50-63 ◽  
Author(s):  
Shan C. Sutton
Keyword(s):  
Large Scale ◽  
Scale Production ◽  
Special Collections ◽  
Professional Journals ◽  
Large Scale Production ◽  
The Subject ◽  
The Impact ◽  
Archival Processing

Introduction Few writings within the realms of archives and special collections have reverberated throughout the field to the degree of Mark A. Greene and Dennis Meissner’s 2005 article “More Product, Less Process: Revamping Traditional Archival Processing.”1 Its clarion call to shift archival arrangement and description away from time-consuming, detailed processes toward rapid, minimalist strategies was met with both cheers and groans that continue unabated. In a sign of its ubiquity, the approach advocated by Greene and Meissner is now simply referred to as “MPLP,” and its implementation is the subject of ongoing discussion in numerous venues, including professional journals, conference . . .

scholarly journals First-principles identification of the charge-shifting mechanism and ferroelectricity in hybrid halide perovskites

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Bumseop Kim ◽  
Jeongwoo Kim ◽  
Noejung Park
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
High Power Conversion Efficiency ◽  
Electronic Band ◽  
Guiding Principle ◽  
Molecular Cation ◽  
Spatial Charge ◽  
Halide Perovskites ◽  
Halide Perovskite

AbstractHybrid halide perovskite solar cells have recently attracted substantial attention, mainly because of their high power conversion efficiency. Among diverse variants, (CH3NH3)PbI3 and HC(NH2)2PbI3 are particularly promising candidates because their bandgap well matches the energy range of visible light. Here, we demonstrate that the large nonlinear photocurrent in β-(CH3NH3)PbI3 and α-HC(NH2)2PbI3 is mostly determined by the intrinsic electronic band properties near the Fermi level, rooted in the inorganic backbone, whereas the ferroelectric polarization of the hybrid halide perovskite is largely dominated by the ionic contribution of the molecular cation. The spatial charge shift upon excitation is attributed to the charge transfer from iodine to lead atoms in the backbone, which is independent of the presence of the cationic molecules. Our findings can serve as a guiding principle for the design of future materials for halide-perovskite solar cells with further enhanced photovoltaic performance.

scholarly journals Lead-Free Perovskite Materials for Solar Cells

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Minghao Wang ◽  
Wei Wang ◽  
Ben Ma ◽  
Wei Shen ◽  
Lihui Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Large Scale ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Experimental Studies ◽  
Field Application ◽  
First Principles Calculation ◽  
Lead Free ◽  
Perovskite Materials ◽  
Halide Perovskites

AbstractThe toxicity issue of lead hinders large-scale commercial production and photovoltaic field application of lead halide perovskites. Some novel non- or low-toxic perovskite materials have been explored for development of environmentally friendly lead-free perovskite solar cells (PSCs). This review studies the substitution of equivalent/heterovalent metals for Pb based on first-principles calculation, summarizes the theoretical basis of lead-free perovskites, and screens out some promising lead-free candidates with suitable bandgap, optical, and electrical properties. Then, it reports notable achievements for the experimental studies of lead-free perovskites to date, including the crystal structure and material bandgap for all of lead-free materials and photovoltaic performance and stability for corresponding devices. The review finally discusses challenges facing the successful development and commercialization of lead-free PSCs and predicts the prospect of lead-free PSCs in the future.

scholarly journals New recommended policies for pathogen surveillance testing of researchers and improved stewardship of diagnostic DNA

2020 ◽  
Author(s):  
Lindsey Robinson-McCarthy ◽  
Alexander J. Mijalis ◽  
Gabriel T Filsinger ◽  
Helena de Puig ◽  
Nina M. Donghia ◽  
...  
Keyword(s):  
Public Health ◽  
Nucleic Acids ◽  
Large Scale ◽  
Health Resources ◽  
Scale Production ◽  
Large Scale Production ◽  
Health Strategy ◽  
Highly Sensitive ◽  
The Public Sphere ◽  
The Impact

The SARS-CoV-2 pandemic has brought about the unprecedented expansion of highly sensitive molecular diagnostics as a primary infection control strategy. At the same time, many laboratories have shifted focus to SARS-CoV-2 research and diagnostic development, leading to large-scale production of nucleic acids that can interfere with these tests. We have identified multiple instances, in independent laboratories, in which nucleic acids generated in research settings are suspected to have caused researchers to test positive for SARS-CoV-2 in surveillance testing. In some cases, the affected individuals did not work directly with these nucleic acids, but were exposed via a contaminated surface or object. Though researchers have long been vigilant of DNA contaminants, the transfer of these contaminants in SARS-CoV-2 testing samples results in anomalous test results. The impact of these stretches into the public sphere, placing additional burdens on public health resources, placing affected researchers and their contacts in quarantine, and carrying the potential to trigger shutdowns of classrooms and workplaces. We report our observations as a call for increased stewardship over nucleic acids with the potential to impact both use and development of diagnostics. These experiences highlight a neglected aspect of the test, trace, isolate public health strategy for managing COVID-19: we cannot easily identify and diagnose an erroneous test result. To prevent undue personal and economic strain and maintain faith in the testing process, we propose: a test, isolate, verify, and trace approach to COVID-19 diagnosis in research and clinical diagnostic workplaces.

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