scholarly journals Stability Assessment of p-i-n Perovskite Photovoltaic Mini-Modules Utilizing Different Top Metal Electrodes

Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 423
Author(s):  
Janardan Dagar ◽  
Gopinath Paramasivam ◽  
Carola Klimm ◽  
Markus Fenske ◽  
Christof Schultz ◽  
...  
Keyword(s):  
Large Area ◽  
Metal Electrodes ◽  
Maximum Power Point ◽  
Long Term Stability ◽  
Laser Patterning ◽  
Short Circuits ◽  
Top Contact ◽  
Power Point ◽  
Perovskite Photovoltaic

Long-term stability is one of the major challenges for p-i-n type perovskite solar modules (PSMs). Here, we demonstrate the fabrication of fully laser-patterned series interconnected p-i-n perovskite mini-modules, in which either single Cu or Ag layers are compared with Cu/Au metal-bilayer top electrodes. According to the scanning electron microscopy measurements, we found that Cu or Ag top electrodes often exhibit flaking of the metal upon P3 (top contact removal) laser patterning. For Cu/Au bilayer top electrodes, metal flaking may cause intermittent short-circuits between interconnected sub-cells during operation, resulting in fluctuations in the maximum power point (MPP). Here, we demonstrate Cu/Au metal-bilayer-based PSMs with an efficiency of 18.9% on an active area of 2.2 cm2 under continuous 1-sun illumination. This work highlights the importance of optimizing the top-contact composition to tackle the operational stability of mini-modules, and could help to improve the feasibility of large-area module deployment for the commercialization of perovskite photovoltaics.

Enhanced long-term stability of perovskite solar cells by 3-hydroxypyridine dipping

2017 ◽  
Vol 53 (11) ◽  
pp. 1829-1831 ◽  
Author(s):  
Rui Fu ◽  
Yicheng Zhao ◽  
Qi Li ◽  
Wenke Zhou ◽  
Dapeng Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Term Stability ◽  
Long Term Stability ◽  
Power Point

With 3-HP treatment, perovskite solar cells can give a steady and long-term output at maximum power point for more than 50 hours.

scholarly journals Chemical anti-corrosion strategy for stable inverted perovskite solar cells

2020 ◽  
Vol 6 (51) ◽  
pp. eabd1580
Author(s):  
Xiaodong Li ◽  
Sheng Fu ◽  
Wenxiao Zhang ◽  
Shanzhe Ke ◽  
Weijie Song ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Electrochemical Corrosion ◽  
Metal Electrodes ◽  
Maximum Power Point ◽  
Perovskite Layer ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Organic Corrosion Inhibitor ◽  
Power Point

One big challenge for long-lived inverted perovskite solar cells (PSCs) is that commonly used metal electrodes react with perovskite layer, inducing electrode corrosion and device degradation. Motivated by the idea of metal anticorrosion, here, we propose a chemical anticorrosion strategy to fabricate stable inverted PSCs through introducing a typical organic corrosion inhibitor of benzotriazole (BTA) before Cu electrode deposition. BTA molecules chemically coordinate to the Cu electrode and form an insoluble and polymeric film of [BTA-Cu], suppressing the electrochemical corrosion and reaction between perovskite and the Cu electrode. PSCs with BTA/Cu show excellent air stability, retaining 92.8 ± 1.9% of initial efficiency after aging for 2500 hours. In addition, >90% of initial efficiency is retained after 85°C aging for over 1000 hours. PSCs with BTA/Cu also exhibit good operational stability, and 88.6 ± 2.6% of initial efficiency is retained after continuous maximum power point tracking for 1000 hours.

scholarly journals Optomechanics based soft artificial skin

2021 ◽  
Author(s):  
Abhijit Chandra Roy ◽  
Navin Kumar ◽  
Shreyas B S ◽  
Ananya Gupta ◽  
Aloke Kumar ◽  
...  
Keyword(s):  
Research Effort ◽  
Cost Effective ◽  
Artificial Skin ◽  
Large Area ◽  
Long Term Stability ◽  
Large Numbers ◽  
Fundamental Understanding ◽  
Extreme Sensitivity ◽  
Consistent Performance

Abstract Soft artificial skin capable of sensing touch, pressure and bending similar to soft human skin is important in many modern-day applications including socially interactive robotics, modern healthcare, augmented reality, etc. However, most of the research effort on soft artificial skin are confined to the lab-scale demonstration. We have demonstrated how a fundamental understanding of the contact mechanics of soft material and a specially constructed soft optical waveguide let us develop a highly efficient, resilient, and large-area soft artificial skin for futuristic applications. The soft artificial skin capable of detect touch, load and bending shows extreme sensitivity (up to \({150 \text{k}\text{P}\text{a}}^{-1}\)) to touch, and load, which is 750 times higher than earlier work. The soft-a-skin shows excellent long-term stability i.e. it shows consistent performance up to almost a year. In addition, we describe a 3D printing process capable of producing large areas, large numbers yet cost-effective soft artificial skin. We have shown the functioning of the soft-a-skin in various means.

Direct observation of continuous networks of ‘sol–gel’ processed metal oxide thin film for organic and perovskite photovoltaic modules with long-term stability

2020 ◽  
Vol 8 (36) ◽  
pp. 18659-18667
Author(s):  
Soonil Hong ◽  
Geunjin Kim ◽  
Byoungwook Park ◽  
Ju-Hyeon Kim ◽  
Junghwan Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Organic Semiconductors ◽  
Sol Gel ◽  
Oxide Thin Film ◽  
Photovoltaic Modules ◽  
Long Term Stability ◽  
Metal Oxide Thin Film ◽  
Continuous Metal ◽  
Perovskite Photovoltaic

Continuous metal oxygen networks of TiOx are formed on top of organic semiconductors with favorable surface energy, which prolong T80-lifetime for organic and perovskite modules up to more than 2000 hours.

Surface Processes Limiting the High Rate Deposition of High Electronic Quality a-Si

1991 ◽  
Vol 219 ◽  
Author(s):  
S. Veprek ◽  
O. Anibacher ◽  
M. Riickschloβ
Keyword(s):  
Amorphous Silicon ◽  
High Rate ◽  
Surface Processes ◽  
Large Area ◽  
Plasma Parameters ◽  
Long Term Stability ◽  
Scaling Parameters ◽  
Gap States ◽  
Rate Limiting

ABSTRACTAmorphous silicon of a high electronic quality with Odatk 10-10, σPh ≈ 1·10-4 (Ωcm)-3 and density of gap states of about 0.3 to 2.1016 eV-1cm-3 is deposited at rates up to 17 Å/sec. The rate limiting steps are identified and their control via the plasma parameters is explained. This allows one to establish the fundamental scaling parameters for large-area high-rate deposition of a-Si. Long term stability of the films in terms of postoxidation and photode-gradation is briefly addressed.

scholarly journals Triple-Mesoscopic Carbon Perovskite Solar Cells: Materials, Processing and Applications

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 386
Author(s):  
Simone M. P. Meroni ◽  
Carys Worsley ◽  
Dimitrios Raptis ◽  
Trystan M. Watson
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Future Research ◽  
Large Area ◽  
Long Term Stability ◽  
Comparable Performance ◽  
Indoor And Outdoor

Perovskite solar cells (PSCs) have already achieved comparable performance to industrially established silicon technologies. However, high performance and stability must be also be achieved at large area and low cost to be truly commercially viable. The fully printable triple-mesoscopic carbon perovskite solar cell (mCPSC) has demonstrated unprecedented stability and can be produced at low capital cost with inexpensive materials. These devices are inherently scalable, and large-area modules have already been fabricated using low-cost screen printing. As a uniquely stable, scalable and low-cost architecture, mCPSC research has advanced significantly in recent years. This review provides a detailed overview of advancements in the materials and processing of each individual stack layer as well as in-depth coverage of work on perovskite formulations, with the view of highlighting potential areas for future research. Long term stability studies will also be discussed, to emphasise the impressive achievements of mCPSCs for both indoor and outdoor applications.

scholarly journals Origin of High Efficiency and Long-Term Stability in Ionic Liquid Perovskite Photovoltaic

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-13 ◽  
Author(s):  
Lingfeng Chao ◽  
Tingting Niu ◽  
Hao Gu ◽  
Yingguo Yang ◽  
Qi Wei ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Environment Friendly ◽  
Long Term Stability ◽  
Wide Range ◽  
One Step ◽  
Amine Groups ◽  
Perovskite Photovoltaic

Environment-friendly protic amine carboxylic acid ionic liquids (ILs) as solvents is a significant breakthrough with respect to traditional highly coordinating and toxic solvents in achieving efficient and stable perovskite solar cells (PSCs) with a simple one-step air processing and without an antisolvent treatment approach. However, it remains mysterious for the improved efficiency and stability of PSCs without any passivation strategy. Here, we unambiguously demonstrate that the three functions of solvents, additive, and passivation are present for protic amine carboxylic acid ILs. We found that the ILs have the capability to dissolve a series of perovskite precursors, induce oriented crystallization, and chemically passivate the grain boundaries. This is attributed to the unique molecular structure of ILs with carbonyl and amine groups, allowing for strong interaction with perovskite precursors by forming C=O…Pb chelate bonds and N-H…I hydrogen bonds in both solution and film. This finding is generic in nature with extension to a wide range of IL-based perovskite optoelectronics.

Sign in / Sign up

Export Citation Format

Share Document