scholarly journals A universal co-solvent dilution strategy enables facile and cost-effective fabrication of perovskite photovoltaics

2022 ◽  
Vol 13 (1) ◽  
Author(s):  
Hong Zhang ◽  
Kasra Darabi ◽  
Narges Yaghoobi Nia ◽  
Anurag Krishna ◽  
Paramvir Ahlawat ◽  
...  
Keyword(s):  
Large Scale ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Cost Effective ◽  
Toxic Waste ◽  
High Concentration ◽  
Colloidal Chemistry ◽  
High Volatility ◽  
Key Issues ◽  
The Stability

AbstractCost management and toxic waste generation are two key issues that must be addressed before the commercialization of perovskite optoelectronic devices. We report a groundbreaking strategy for eco-friendly and cost-effective fabrication of highly efficient perovskite solar cells. This strategy involves the usage of a high volatility co-solvent, which dilutes perovskite precursors to a lower concentration (<0.5 M) while retaining similar film quality and device performance as a high concentration (>1.4 M) solution. More than 70% of toxic waste and material cost can be reduced. Mechanistic insights reveal ultra-rapid evaporation of the co-solvent together with beneficial alteration of the precursor colloidal chemistry upon dilution with co-solvent, which in-situ studies and theoretical simulations confirm. The co-solvent tuned precursor colloidal properties also contribute to the enhancement of the stability of precursor solution, which extends its processing window thus minimizing the waste. This strategy is universally successful across different perovskite compositions, and scales from small devices to large-scale modules using industrial spin-coating, potentially easing the lab-to-fab translation of perovskite technologies.

Rationalizing the effect of overstoichiometric PbI2 on the stability of perovskite solar cells in the context of precursor solution formulation

2021 ◽  
Vol 278 ◽  
pp. 116823
Author(s):  
Mayuribala Mangrulkar ◽  
Sergey Yu. Luchkin ◽  
Azat F. Akbulatov ◽  
Ivan Zhidkov ◽  
Ernst Z. Kurmaev ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
The Stability ◽  
Solution Formulation

scholarly journals Reporting Device Performance of Emerging Photovoltaic Materials (Version 1)

2021 ◽  
Author(s):  
Osbel Almora ◽  
Derya Baran ◽  
Guillermo C Bazan ◽  
Carlos I Cabrera ◽  
Kylie R Catchpole ◽  
...  
Keyword(s):  
Large Scale ◽  
State Of The Art ◽  
Perovskite Solar Cells ◽  
Bandgap Energy ◽  
Energy Yield ◽  
Research Subjects ◽  
Dye Sensitized ◽  
Alternative Approach ◽  
The Stability ◽  
Reported Data

Emerging photovoltaics (PVs), focuses on a variety of applications complementing large scale electricity generation. For instance, organic, dye-sensitized and some perovskite solar cells are considered in building integration, greenhouses, wearable and indoors, thereby motivating research on flexible, transparent, semitransparent, and multi-junction PVs. Nevertheless, it can be very time consuming to find or develop an up-to-date overview over the state-of-the-art performance for these systems and applications. Two important resources for record research cells efficiencies are the National Renewable Energy Laboratory chart and the efficiency tables compiled biannually by Martin Green and colleagues. Both publications provide an effective coverage over the established technologies, bridging research and industry. An alternative approach is proposed here summarizing the best reports in the diverse research subjects for emerging PVs. Best performance parameters are provided as a function of the photovoltaic bandgap energy for each technology and application, and are put into perspective using, e.g., the Shockley-Queisser limit. In all cases, the reported data correspond to published and/or properly described certified results, with enough details provided for prospective data reproduction. Additionally, the stability test energy yield (STEY) is included as an analysis parameter among state-of-the-art emerging PVs.

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 A Green and Cost-effective Approach to Reutilize the Effluent from Bleaching Process

2019 ◽  
pp. 85-90
Keyword(s):  
Large Scale ◽  
Environmental Science ◽  
Cost Effective ◽  
Synthetic Dyes ◽  
High Concentration ◽  
Cost Effective Approach ◽  
Color Yield ◽  
Wet Processing ◽  
Dyed Fabric ◽  
Textile Sector

Environmental science and management is often the most discussed subject nowadays all over the world. In a number of countries, presently plenty of harms are associated with the effluent by industrial due to growing industrialization; this issue should be considered at large scale. Textile sector is one of the leading areas, which uses a high amount of chemicals and creating environmental pollution. Textile wet processing sector uses a lot of chemicals, surfactants and synthetic dyes, hence produce a large amount of wastewater having a high concentration of chemicals. This research is an effort to investigate the amount of residue remained in liquor after bleaching and reuses this liquor by adding a few chemicals according to the requirement. Afterward, the comparison was made between the bleached sample with fresh liquor and bleached sample with reused liquor. It was observed that bleaching with reused liquor shows good results though these results are insignificantly less than fresh bleaching liquor. On the other hand, fortunately, the color yield of dyed fabric bleached with reused liquor is higher than fresh liquor.

scholarly journals Roadmap for advanced aqueous batteries: From design of materials to applications

2020 ◽  
Vol 6 (21) ◽  
pp. eaba4098 ◽  
Author(s):  
Dongliang Chao ◽  
Wanhai Zhou ◽  
Fangxi Xie ◽  
Chao Ye ◽  
Huan Li ◽  
...  
Keyword(s):  
Large Scale ◽  
Cost Effective ◽  
Material Design ◽  
Advanced Materials ◽  
Promising Alternative ◽  
Practical Applications ◽  
Limited Output ◽  
Key Issues ◽  
Fundamental Research ◽  
Aqueous Batteries

Safety concerns about organic media-based batteries are the key public arguments against their widespread usage. Aqueous batteries (ABs), based on water which is environmentally benign, provide a promising alternative for safe, cost-effective, and scalable energy storage, with high power density and tolerance against mishandling. Research interests and achievements in ABs have surged globally in the past 5 years. However, their large-scale application is plagued by the limited output voltage and inadequate energy density. We present the challenges in AB fundamental research, focusing on the design of advanced materials and practical applications of whole devices. Potential interactions of the challenges in different AB systems are established. A critical appraisal of recent advances in ABs is presented for addressing the key issues, with special emphasis on the connection between advanced materials and emerging electrochemistry. Last, we provide a roadmap starting with material design and ending with the commercialization of next-generation reliable ABs.

scholarly journals Reporting Device Performance of Emerging Photovoltaic Materials (Version 1)

2021 ◽  
Author(s):  
Osbel Almora ◽  
Derya Baran ◽  
Guillermo C Bazan ◽  
Carlos I Cabrera ◽  
Kylie R Catchpole ◽  
...  
Keyword(s):  
Large Scale ◽  
State Of The Art ◽  
Perovskite Solar Cells ◽  
Bandgap Energy ◽  
Energy Yield ◽  
Research Subjects ◽  
Dye Sensitized ◽  
Alternative Approach ◽  
The Stability ◽  
Reported Data

Emerging photovoltaics (PVs), focuses on a variety of applications complementing large scale electricity generation. For instance, organic, dye-sensitized and some perovskite solar cells are considered in building integration, greenhouses, wearable and indoors, thereby motivating research on flexible, transparent, semitransparent, and multi-junction PVs. Nevertheless, it can be very time consuming to find or develop an up-to-date overview over the state-of-the-art performance for these systems and applications. Two important resources for record research cells efficiencies are the National Renewable Energy Laboratory chart and the efficiency tables compiled biannually by Martin Green and colleagues. Both publications provide an effective coverage over the established technologies, bridging research and industry. An alternative approach is proposed here summarizing the best reports in the diverse research subjects for emerging PVs. Best performance parameters are provided as a function of the photovoltaic bandgap energy for each technology and application, and are put into perspective using, e.g., the Shockley-Queisser limit. In all cases, the reported data correspond to published and/or properly described certified results, with enough details provided for prospective data reproduction. Additionally, the stability test energy yield (STEY) is included as an analysis parameter among state-of-the-art emerging PVs.

Unsettled Issues Concerning eVTOL for Rapid-response, On-demand Firefighting

2021 ◽  
Author(s):  
Johnny Doo ◽  
Keyword(s):  
Large Scale ◽  
Fire Suppression ◽  
Rapid Development ◽  
Cost Effective ◽  
Aviation Industry ◽  
Successful Implementation ◽  
Charging System ◽  
On Demand ◽  
Key Issues ◽  
Fire Stations

Recent advancements of electric vertical take-off and landing (eVTOL) aircraft have generated significant interest within and beyond the traditional aviation industry, and many novel applications have been identified and are in development. One promising application for these innovative systems is in firefighting, with eVTOL aircraft complementing current firefighting capabilities to help save lives and reduce fire-induced damages. With increased global occurrences and scales of wildfires—not to mention the issues firefighters face during urban and rural firefighting operations daily—eVTOL technology could offer timely, on-demand, and potentially cost-effective aerial mobility capabilities to counter these challenges. Early detection and suppression of wildfires could prevent many fires from becoming large-scale disasters. eVTOL aircraft may not have the capacity of larger aerial assets for firefighting, but targeted suppression, potentially in swarm operations, could be valuable. Most importantly, on-demand aerial extraction of firefighters can be a crucial benefit during wildfire control operations. Aerial firefighter dispatch from local fire stations or vertiports can result in more effective operations, and targeted aerial fire suppression and civilian extraction from high-rise buildings could enhance capabilities significantly. There are some challenges that need to be addressed before the identified capabilities and benefits are realized at scale, including the development of firefighting-specific eVTOL vehicles; sense and avoid capabilities in complex, smoke-inhibited environments; autonomous and remote operating capabilities; charging system compatibility and availability; operator and controller training; dynamic airspace management; and vehicle/fleet logistics and support. Acceptance from both the first-responder community and the general public is also critical for the successful implementation of these new capabilities. The purpose of this report is to identify the benefits and challenges of implementation, as well as some of the potential solutions. Based on the rapid development progress of eVTOL aircraft and infrastructures with proactive community engagement, it is envisioned that these challenges can be addressed soon. NOTE: SAE EDGE™ Research Reports are intended to identify and illuminate key issues in emerging, but still unsettled, technologies of interest to the mobility industry. The goal of SAE EDGE™ Research Reports is to stimulate discussion and work in the hope of promoting and speeding resolution of identified issues. These reports are not intended to resolve the challenges they identify or close any topic to further scrutiny.

scholarly journals Catalyst-Free Vapor-Phase Method for Direct Integration of Gas Sensing Nanostructures with Polymeric Transducing Platforms

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Stella Vallejos ◽  
Isabel Gràcia ◽  
Eduardo Figueras ◽  
Carles Cané
Keyword(s):  
Tungsten Oxide ◽  
Gas Sensors ◽  
Large Scale ◽  
Oxygen Vacancies ◽  
Gas Sensing ◽  
Chemical Vapor ◽  
Cost Effective ◽  
Phase Method ◽  
High Concentration ◽  
Aspect Ratios

Tungsten oxide nanoneedles (NNs) are grown and integrated directly with polymeric transducing platforms for gas sensors via aerosol-assisted chemical vapor deposition (AACVD) method. Material analysis shows the feasibility to grow highly crystalline nanomaterials in the form of NNs with aspect ratios between 80 and 200 and with high concentration of oxygen vacancies at the surface, whereas gas testing demonstrates moderate sensing responses to hydrogen at concentrations between 10 ppm and 50 ppm, which are comparable with results for tungsten oxide NNs grown on silicon transducing platforms. This method is demonstrated to be an attractive route to fabricate next generation of gas sensors devices, provided with flexibility and functionality, with great potential in a cost effective production for large-scale applications.

scholarly journals Potential challenges and approaches to develop the large area efficient monolithic perovskite solar cells (mPSCs)

2019 ◽  
Vol 30 (23) ◽  
pp. 20320-20329
Author(s):  
Arti Mishra ◽  
Zubair Ahmad
Keyword(s):  
Solar Cells ◽  
Architectural Design ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Scale Production ◽  
Large Area ◽  
The Stability ◽  
Future Direction ◽  
Industrial Scale Production

Abstract The next generation technologies based on perovskite solar cells (PSCs) are targeted to develop a true low cost, low tech, widely deployable, easily manufactured and reliable photovoltaics. After the extremely fast evolution in the last few years on the laboratory-scale, PSCs power conversion efficiency (PCE) reached over 24%. However, the widespread use of PSCs requires addressing the stability and industrial scale production issues. Carbon based monolithic perovskite solar cells (mPSCs) are one of the most promising candidates for the commercialization of the PSCs. mPSCs possess a unique architectural design and pave an easy way to produce large area and cost-effective fabrication of the PSCs. In this article, recent progress in the field of mPSCs, challenges and strategies for their improvement are briefly reviewed. Also, we focus on the predominant implementations of recent techniques in the fabrication of the mPSCs to improve their performance. This review is intended to serve as a future direction guide for the scientists who are looking forward to developing more reliable, cost-effective and large area PSCs.

scholarly journals Carbon-Based Electrode for Perovskite Solar Cells

2021 ◽  
Author(s):  
Meidan Que ◽  
Boyue Zhang ◽  
Jin Chen ◽  
Xingtian Yin ◽  
Sining Yun
Keyword(s):  
Solar Cells ◽  
Production Process ◽  
High Stability ◽  
Large Scale ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Scale Production ◽  
Large Scale Production ◽  
The Cost ◽  
Carbon Based

The cost-effective processability and high stability of carbon-based perovskite solar cells (C-PSCs) have shown a tremendous potential to positively devote to the development of large-scale production process. However, prior to...

Sign in / Sign up

Export Citation Format

Share Document