scholarly journals Polymer Amplification to Improve Performance and Stability Towards Semi-Transparent Perovskite Solar Cells Fabrication

2019 ◽  
Author(s):  
Hafez Nikbakht ◽  
Ahmed Esmail Shalan ◽  
Manuel Salado ◽  
Abbas Assadi ◽  
Parviz Boroojerdian ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Vinylidene Fluoride ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Spectroscopic Properties ◽  
Charge Transfer Resistance ◽  
Large Area ◽  
Transfer Resistance

<p>The performance of methylammonium lead triiodide (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>) based solar cells depends on its crystallization and controlled microstructure. In spite of its high performance, long-term stability is a paramount factor towards its large area fabrication and potential industrialization. Herein, we have employed poly(vinylidene fluoride−trifluoro ethylene) P(VDF-TrFE) as an additive into a low concentration based perovskite precursor solutions to control the crystallinity and microstructure. Perovskite layers of lower thickness can be derived from low precursor concentration, however it often suffers from severe voids and roughness. Introducing judicious quantities of P(VDF-TrFE) can improve the surface coverage, smoothness as well as reduces the grain boundaries in the perovskite. An array of characterization techniques were utilized to probe the structural, microstructural and spectroscopic properties. Impedance spectra suggests, the P(VDF-TrFE) can improve the carrier lifetimes and reduce the charge transfer resistance, which in turn allows to improve photovoltaic performance. For an optimized concentration of P(VDF-TrFE), the fabricated semi-transparent solar cells yielded power conversion efficiency in excess of 10%, which supersede pristine devices along with improved stability. The device architect and the fabrication technique provide an effective route to fabricate cost effective and visible-light-semi-transparent perovskite solar cells.</p>

scholarly journals Polymer Amplification to Improve Performance and Stability Towards Semi-Transparent Perovskite Solar Cells Fabrication

2019 ◽  
Author(s):  
Hafez Nikbakht ◽  
Ahmed Esmail Shalan ◽  
Manuel Salado ◽  
Abbas Assadi ◽  
Parviz Boroojerdian ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Vinylidene Fluoride ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Spectroscopic Properties ◽  
Charge Transfer Resistance ◽  
Large Area ◽  
Transfer Resistance

<p>The performance of methylammonium lead triiodide (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>) based solar cells depends on its crystallization and controlled microstructure. In spite of its high performance, long-term stability is a paramount factor towards its large area fabrication and potential industrialization. Herein, we have employed poly(vinylidene fluoride−trifluoro ethylene) P(VDF-TrFE) as an additive into a low concentration based perovskite precursor solutions to control the crystallinity and microstructure. Perovskite layers of lower thickness can be derived from low precursor concentration, however it often suffers from severe voids and roughness. Introducing judicious quantities of P(VDF-TrFE) can improve the surface coverage, smoothness as well as reduces the grain boundaries in the perovskite. An array of characterization techniques were utilized to probe the structural, microstructural and spectroscopic properties. Impedance spectra suggests, the P(VDF-TrFE) can improve the carrier lifetimes and reduce the charge transfer resistance, which in turn allows to improve photovoltaic performance. For an optimized concentration of P(VDF-TrFE), the fabricated semi-transparent solar cells yielded power conversion efficiency in excess of 10%, which supersede pristine devices along with improved stability. The device architect and the fabrication technique provide an effective route to fabricate cost effective and visible-light-semi-transparent perovskite solar cells.</p>

scholarly journals Solution-Processed PEDOT:PSS/MoS2 Nanocomposites as Efficient Hole-Transporting Layers for Organic Solar Cells

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1328 ◽  
Author(s):  
Madeshwaran Sekkarapatti Ramasamy ◽  
Ka Yeon Ryu ◽  
Ju Won Lim ◽  
Asia Bibi ◽  
Hannah Kwon ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Hybrid Film ◽  
Acid Methyl Ester ◽  
Cost Effective ◽  
Charge Transfer Resistance ◽  
Electrical Impedance Spectroscopy ◽  
Transfer Resistance ◽  
Hole Transporting

An efficient hole-transporting layer (HTL) based on functionalized two-dimensional (2D) MoS2-poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composites has been developed for use in organic solar cells (OSCs). Few-layer, oleylamine-functionalized MoS2 (FMoS2) nanosheets were prepared via a simple and cost-effective solution-phase exfoliation method; then, they were blended into PEDOT:PSS, a conducting conjugated polymer, and the resulting hybrid film (PEDOT:PSS/FMoS2) was tested as an HTL for poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) OSCs. The devices using this hybrid film HTL showed power conversion efficiencies up to 3.74%, which is 15.08% higher than that of the reference ones having PEDOT:PSS as HTL. Atomic force microscopy and contact angle measurements confirmed the compatibility of the PEDOT:PSS/FMoS2 surface for active layer deposition on it. The electrical impedance spectroscopy analysis revealed that their use minimized the charge-transfer resistance of the OSCs, consequently improving their performance compared with the reference cells. Thus, the proposed fabrication of such HTLs incorporating 2D nanomaterials could be further expanded as a universal protocol for various high-performance optoelectronic devices.

scholarly journals Spray Pyrolyzed TiO2 Embedded Multi-Layer Front Contact Design for High-Efficiency Perovskite Solar Cells

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Md. Shahiduzzaman ◽  
Mohammad Ismail Hossain ◽  
Sem Visal ◽  
Tetsuya Kaneko ◽  
Wayesh Qarony ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Three Dimensional ◽  
Cost Effective ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Single Junction

AbstractThe photovoltaic performance of perovskite solar cells (PSCs) can be improved by utilizing efficient front contact. However, it has always been a significant challenge for fabricating high-quality, scalable, controllable, and cost-effective front contact. This study proposes a realistic multi-layer front contact design to realize efficient single-junction PSCs and perovskite/perovskite tandem solar cells (TSCs). As a critical part of the front contact, we prepared a highly compact titanium oxide (TiO2) film by industrially viable Spray Pyrolysis Deposition (SPD), which acts as a potential electron transport layer (ETL) for the fabrication of PSCs. Optimization and reproducibility of the TiO2 ETL were discreetly investigated while fabricating a set of planar PSCs. As the front contact has a significant influence on the optoelectronic properties of PSCs, hence, we investigated the optics and electrical effects of PSCs by three-dimensional (3D) finite-difference time-domain (FDTD) and finite element method (FEM) rigorous simulations. The investigation allows us to compare experimental results with the outcome from simulations. Furthermore, an optimized single-junction PSC is designed to enhance the energy conversion efficiency (ECE) by > 30% compared to the planar reference PSC. Finally, the study has been progressed to the realization of all-perovskite TSC that can reach the ECE, exceeding 30%. Detailed guidance for the completion of high-performance PSCs is provided.

scholarly journals Electrochemical Impedance Spectroscopy Analysis of Hole Transporting Material Free Mesoporous and Planar Perovskite Solar Cells

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1635
Author(s):  
Sumayya M. Abdulrahim ◽  
Zubair Ahmad ◽  
Jolly Bahadra ◽  
Noora J. Al-Thani
Keyword(s):  
Solar Cells ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Hole Transport ◽  
Large Area ◽  
The Future ◽  
Hole Transporting Material

The future photovoltaic technologies based on perovskite materials are aimed to build low tech, truly economical, easily fabricated, broadly deployable, and trustworthy solar cells. Hole transport material (HTM) free perovskite solar cells (PSCs) are among the most likely architectures which hold a distinctive design and provide a simple way to produce large-area and cost-effective manufacture of PSCs. Notably, in the monolithic scheme of the HTM-free PSCs, all layers can be printed using highly reproducible and morphology-controlled methods, and this design has successfully been demonstrated for industrial-scale fabrication. In this review article, we comprehensively describe the recent advancements in the different types of mesoporous (nanostructured) and planar HTM-free PSCs. In addition, the effect of various nanostructures and mesoporous layers on their performance is discussed using the electrochemical impedance spectroscopy (EIS) technique. We bring together the different perspectives that researchers have developed to interpret and analyze the EIS data of the HTM-free PSCs. Their analysis using the EIS tool, the limitations of these studies, and the future work directions to overcome these limitations to enhance the performance of HTM-free PSCs are comprehensively considered.

scholarly journals Low-Cost and Efficient Nickel Nitroprusside/Graphene Nanohybrid Electrocatalysts as Counter Electrodes for Dye-Sensitized Solar Cells

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6563
Author(s):  
Md. Mahbubur Rahman
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Solution Process ◽  
Charge Transfer Resistance ◽  
Counter Electrodes ◽  
Transfer Resistance ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Novel nickel nitroprusside (NNP) nanoparticles with incorporated graphene nanoplatelets (NNP/GnP) were used for the first time as a low-cost and effective counter electrode (CE) for dye-sensitized solar cells (DSSCs). NNP was synthesized at a low-temperature (25 °C) solution process with suitable purity and crystallinity with a size range from 5 to 10 nm, as confirmed by different spectroscopic and microscopic analyses. The incorporation of an optimized amount of GnP (0.2 wt%) into the NNP significantly improved the electrocatalytic behavior for the redox reaction of iodide (I-)/tri-iodide (I3-) by decreasing the charge-transfer resistance at the CE/electrolyte interface, lower than the NNP- and GnP-CEs, and comparable to the Pt-CE. The NNP/GnP nanohybrid CE when applied in DSSC exhibited a PCE of 6.13% (under one sun illumination conditions) with the Jsc, Voc, and FF of 14.22 mA/cm2, 0.628 V, and 68.68%, respectively, while the PCE of the reference Pt-CE-based DSSC was 6.37% (Jsc = 14.47 mA/cm2, Voc = 0.635 V, and FF = 69.20%). The low cost of the NNP/GnP hybrid CE with comparable photovoltaic performance to Pt-CE can be potentially exploited as a suitable replacement of Pt-CE in DSSCs.

Large area, waterproof, air stable and cost effective efficient perovskite solar cells through modified carbon hole extraction layer

2017 ◽  
Vol 4 ◽  
pp. 53-63 ◽  
Author(s):  
Sawanta S. Mali ◽  
Hyungjin Kim ◽  
Hyun Hoon Kim ◽  
Gwang Ryeol Park ◽  
Sang Eun Shim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Large Area

scholarly journals Strategies for High-Performance Large-Area Perovskite Solar Cells toward Commercialization

Crystals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 295
Author(s):  
Tianzhao Dai ◽  
Qiaojun Cao ◽  
Lifeng Yang ◽  
Mahmoud Aldamasy ◽  
Meng Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Large Scale ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Growth Control ◽  
Single Crystal Silicon ◽  
Large Area ◽  
Crystal Silicon ◽  
Control Interface

Perovskite solar cells (PSCs) have received a great deal of attention in the science and technology field due to their outstanding power conversion efficiency (PCE), which increased rapidly from 3.9% to 25.5% in less than a decade, comparable to single crystal silicon solar cells. In the past ten years, much progress has been made, e.g. impressive ideas and advanced technologies have been proposed to enlarge PSC efficiency and stability. However, this outstanding progress has always been referred to as small-area (<0.1 cm2) PSCs. Little attention has been paid to the preparation processes and their micro-mechanisms for large-area (>1 cm2) PSCs. Meanwhile, scaling up is an inevitable way for large-scale application of PSCs. Therefore, we firstly summarize the current achievements for high efficiency and stability large-area perovskite solar cells, including precursor composition, deposition, growth control, interface engineering, packaging technology, etc. Then we include a brief discussion and outlook for the future development of large-area PSCs in commercialization.

Improved photovoltaic performance of perovskite solar cells based on three-dimensional rutile TiO2 nanodendrite array film

Nanoscale ◽  
2018 ◽  
Vol 10 (44) ◽  
pp. 20836-20843 ◽  
Author(s):  
Chi Chen ◽  
Shufang Wu ◽  
Jinming Wang ◽  
Siyao Chen ◽  
Tianyou Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Three Dimensional ◽  
Transport Layer ◽  
Rutile Tio2

A rutile TiO2 nanodendrite array (3D-RTNDA) containing trunks and branches as transport layer is fabricated for high-performance perovskite solar cells.

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