Au Nanoparticles Effect on Inverted ZnO Nanorods/Organic Hybrid Solar Cell Performance

2021 ◽  
Vol 11 (1) ◽  
pp. 165-171
Author(s):  
Pham Hoai Phuong ◽  
Kang Jea Lee ◽  
Huynh Tran My Hoa ◽  
Hoang Hung Nguyen ◽  
Quang Trung Tran ◽  
...  
Keyword(s):  
Active Layer ◽  
Photovoltaic Performance ◽  
Zno Nanorods ◽  
Localized Surface Plasmon ◽  
Cathode Layer ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Solar Cell Performance ◽  
Au Nps ◽  
Organic Hybrid

The sun provides a plentiful and inexpensive source of carbon-neutral energy that has yet to be fully utilized. This is a major driving force behind the development of organic photovoltaic (OPV) materials and devices, which are expected to offer benefits such as low cost, flexibility, and widespread availability. For the photovoltaic performance enhancement of the inverted ZnO-nanorods (NR)/organic hybrid solar cells with poly(3-exylthiophene):(6,6)-phenyl-C61-butyric-acid-methylester (P3HT:PCBM) and poly (3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) active layers, gold nanoparticles (Au-NPs) were introduced into the interface between indium-thin-oxide cathode layer and ZnO cathode buffer layer, and the efficiency improvement was observed. It's worth noting that adding Au NPs had both a positive and negative impact on device performance. Au NPs were shown to be advantageous to localized surface plasmon resonance (LSPs) in the coupling of dispersed light from ZnO NRs in order to extend the light's path length in the absorbing medium. Although the light absorption in the active layer could be enhanced, Au NPs might also act as recombination centers within the active layer. To avoid this adverse effect, Au NPs are covered by the ZnO seeded layer to prevent Au NPs from direct contact with the active layer. The dominant surface plasmonic effect of Au NPs increased the photoelectric conversion efficiency from 2.4% to 3.8%.

Cell Performances of Inorganic-Organic Hybrid Solar Cells Using Fluorosilicate/Phosphorus Oxide Composite Microparticles

2016 ◽  
Vol 98 ◽  
pp. 26-31 ◽  
Author(s):  
Keisuke Sato ◽  
Yuuki Sugano ◽  
Kenji Hirakuri ◽  
Naoki Fukata
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Carrier Transport ◽  
Photovoltaic Performance ◽  
Hybrid Solar Cells ◽  
Phosphorus Oxide ◽  
Photoelectric Conversion ◽  
Oxide Composite ◽  
Organic Hybrid ◽  
Conversion Materials

We report on the structural characterization and the photovoltaic performances of novel photoelectric conversion materials fabricated by simplified and cheap procedures based on a chemical approach. Our prepared composite microparticles were composed of fluorosilicate/phosphorus oxide holding together by ammonium. When such composite microparticles were used in the active layer of the hybrid solar cells, the relatively high Jsc was obtained by causing the adequate carrier transport from the active layer to each electrode, attaining the best photovoltaic performance with a PCE of 4.45 %. These findings indicate that the fluorosilicate/phosphorus oxide composite microparticles have sufficient ability as the photoelectric conversion materials.

scholarly journals CuI/Spiro-OMeTAD Double-Layer Hole Transport Layer to Improve Photovoltaic Performance of Perovskite Solar Cells

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 978
Author(s):  
Chaoqun Lu ◽  
Weijia Zhang ◽  
Zhaoyi Jiang ◽  
Yulong Zhang ◽  
Cong Ni
Keyword(s):  
Solar Cells ◽  
Double Layer ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Perovskite Layer

The hole transport layer (HTL) is one of the main factors affecting the efficiency and stability of perovskite solar cells (PSCs). However, obtaining HTLs with the desired properties through current preparation techniques remains a challenge. In the present study, we propose a new method which can be used to achieve a double-layer HTL, by inserting a CuI layer between the perovskite layer and Spiro-OMeTAD layer via a solution spin coating process. The CuI layer deposited on the surface of the perovskite film directly covers the rough perovskite surface, covering the surface defects of the perovskite, while a layer of CuI film avoids the defects caused by Spiro-OMetad pinholes. The double-layer HTLs improve roughness and reduce charge recombination of the Spiro-OMeTAD layer, thereby resulting in superior hole extraction capabilities and faster hole mobility. The CuI/Spiro-OMeTAD double-layer HTLs-based devices were prepared in N2 gloveboxes and obtained an optimized PCE (photoelectric conversion efficiency) of 17.44%. Furthermore, their stability was improved due to the barrier effect of the inorganic CuI layer on the entry of air and moisture into the perovskite layer. The results demonstrate that another deposited CuI film is a promising method for realizing high-performance and air-stable PSCs.

Effects of triphenyl phosphate as an inexpensive additive on the photovoltaic performance of dye-sensitized nanocrystalline TiO2 solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50483-50493 ◽  
Author(s):  
Malihe Afrooz ◽  
Hossein Dehghani
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Photoelectric Conversion Efficiency ◽  
Triphenyl Phosphate ◽  
Photoelectric Conversion ◽  
Nanocrystalline Tio2 ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In this study, triphenyl phosphate (TPP) is applied as an effective and inexpensive additive in the dye sensitized solar cells (DSSCs) and an increase in the photoelectric conversion efficiency is obtained of almost 24%.

Effect of Heat Treatment on CNT/TiO2 Photoelectrode for Dye-Sensitized Solar Cells Application

2014 ◽  
Vol 28 ◽  
pp. 151-162 ◽  
Author(s):  
Mohd Zikri Razali ◽  
Abdullah Huda ◽  
Sahbudin Shaari ◽  
Taha Mohd Raihan ◽  
Azimah Omar ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cell ◽  
Annealing Temperature ◽  
Anatase Phase ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Electrical Performance ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Dye Sensitized

In this research, the CNT/TiO2 nanocomposite solution was prepared using sol-gel method process. Definite amounts of CNT (0.06 g) were sonicated in 30 ml anhydrate 2-propanol. The measured quantities of Titanium (IV) Tetraisopropoxide (TTIP) – 5 ml were introduced into the CNT/2-propanol solution. The CNT/TiO2 paste was doctor-bladed onto the FTO glass and consequently annealed at 250 °C, 350 °C and 450 °C for 30 min. The effect of annealing temperatures on the CNT/TiO2 thin films was discussed. The CNT/TiO2 thin films were characterized for morphological and electrical performance by Field Emission Scanning Electron Microscopy (FESEM), X-ray Diffraction (XRD), Incident Photon to Charge Carrier Efficiency (IPCE) and IV-Curve Efficiency analysis. The XRD patterns show the thin films major peak at (101) with average anatase phase crystallite size. The CNT/TiO2 thin film's morphological structure composed of compressed and porous distributed composition. The crystal structures were changed upon increasing the annealing temperature. The IV measurement shows that the dye-sensitized solar cell (DSSC) at 450 °C produced highest photoelectric conversion efficiency (η) with 3.88 %. IPCE graph shows the solar cell absorb light within the UV spectrum region. It is revealed that annealing temperature has influence toward photovoltaic performance of the assembled DSSC.

Preparation and Photovoltaic Properties of Dye Sensitized Solar Cells Using ZnO Nanorods Stacking Films on AZO Substrate as Photoanode

2016 ◽  
Vol 16 (4) ◽  
pp. 3622-3627
Author(s):  
Yang Xu ◽  
Xina Wang ◽  
Rong Liu ◽  
Hao Wang
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Zno Nanorods ◽  
Dye Sensitized Solar Cells ◽  
Growth Time ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Light Power ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Three-dimensional stacking of ZnO nanorods on conducting aluminum-doped ZnO (AZO) glass were studied as efficient photoanodes of dye sensitized solar cells (DSSCs). By changing hydrothermal growth time and cycle times, the thickness of ZnO nanorods stacking films varied from 30 μm to 64 μm, and its influence on the energetic conversion efficiency of the DSSCs based on the stacking films photoanodes was investigated. The loading density of N719 on the surface of ZnO nanorods was studied to increase the efficiency of the cells. Annealing experiments showed that the AZO substrates remained good conductors until heated above 350 °C. A photoelectric conversion efficiency as high as ∼2.0% together with Isc of ∼9.5 mA/cm2, Voc of ∼0.5 V and FF of ∼41.4% was achieved for the DSSC using 50 μm-thick film stacking by ZnO nanorods as photoanode and N719 as sensitizer under illumination of AM1.5G solar light (power density of 100 mW/cm2). A charge separation and transfer mechanism was proposed for the ZnO nanorods stacking electrode-based DSSCs.

scholarly journals Computational Prediction of Electronic and Photovoltaic Properties of Anthracene-Based Organic Dyes for Dye-Sensitized Solar Cells

2018 ◽  
Vol 2018 ◽  
pp. 1-17 ◽  
Author(s):  
Hongbo Wang ◽  
Qian Liu ◽  
Dejiang Liu ◽  
Runzhou Su ◽  
Jinglin Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Density Functional ◽  
Organic Dyes ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Dye Sensitized ◽  
Photoelectric Properties ◽  
Sensitized Solar Cells

Three kinds of anthracene-based organic dyes for dye-sensitized solar cells (DSSCs) were studied, and their structures are based on a push–pull framework with anthracenyl diphenylamine as the donor connected to a carboxyphenyl or carboxyphenyl-bromothiazole (BTZ) as the acceptor via an acetylene bridge. The photoelectric properties of the three dyes were investigated using density functional theory (DFT). The simulations indicate that the improvement of anthracene-based dyes (the addition of BTZ and the change of alkyl groups to alkoxy chains) can reduce the energy gap and produce a red shift. This structural modification also improves the light capturing and the electron injection capability, making it excellent in photoelectric conversion efficiency (PCE). In addition, twelve molecules have been designed to regulate photovoltaic performance.

P3HT:PCBM Bulk Heterojunction Solar Cells: Morphological And Electrical Characterization And Performance Optimization

2007 ◽  
Vol 1013 ◽  
Author(s):  
Tom Aernouts ◽  
Peter Vanlaeke ◽  
Ilse Haeldermans ◽  
Jan D'Haen ◽  
Paul Heremans ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Performance Optimization ◽  
Morphological Changes ◽  
Photovoltaic Performance ◽  
Acid Methyl Ester ◽  
Hole Mobility ◽  
Solar Cell Performance ◽  
A Value

AbstractThe performance of organic solar cells based on the blend of regioregular poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) is strongly influenced by the morphology of the active layer on the nanoscale level. X-ray diffraction (XRD) and Transmission Electron Microscopy (TEM) measurements show that ordering of P3HT plays a key role in optimizing the photovoltaic performance. It is demonstrated that the natural tendency of regioregular P3HT to crystallize is disturbed by the addition of PCBM. The crystallinity of the photo-active blend is typically restored by an annealing procedure resulting in improved device performance, characterized by a spectral broadening of the optical absorption.The morphological changes upon annealing of the P3HT:PCBM blends are accompanied by electrical changes as shown in charge carrier mobility measurements. Space-charge limited current measurements have been performed in hole-only devices with various P3HT:PCBM blend ratios. The mobility before and after annealing is compared and from temperature dependent measurements the width of the density of states distribution (DOS) is determined. The hole mobility in pristine P3HT remains practically unaffected by the annealing treatment. The as-produced P3HT:PCBM blends on the other hand, with a more disordered P3HT phase, have a much lower hole mobility. Annealing is capable of increasing the P3HT ordering with as a result an orders of magnitude larger hole mobility, approaching the value found in pristine P3HT. The DOS bandwidths are affected similarly. In the as-produced blend films a value of 100 meV is found, larger than in the annealed films, there reaching a value around 70 meV similar as in pristine P3HT. Variation of the processing solvent demonstrated however that an optimized morphology and charge transport situation can also be obtained without an additional annealing step. It is shown that in that case the as-produced active layer has already a favorable crystalline morphology. We argue that the high boiling point of the solvent plays an important role in this by influencing the evaporation speed during deposition of the photo-active blend. Further proof is delivered that indeed slowing down the evaporation speed can beneficially influence the solar cell performance. Power conversion efficiency over 4% has been achieved in this way.

Influence of Heat Treatment on the Properties of CuInS2 Sensitized Solar Cells

2012 ◽  
Vol 519 ◽  
pp. 65-69 ◽  
Author(s):  
Qing Cui Wan ◽  
Chun Yan Luan ◽  
Xue Qing Xu ◽  
Feng Jiao Mei ◽  
Pin An ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Solar Cells ◽  
Heating Temperature ◽  
Photovoltaic Performance ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Post Annealing ◽  
Cuins2 Thin Films ◽  
Sensitized Solar Cells ◽  
Crystallization Degree

CuInS2 has been deposited onto the mesoporous TiO2 films by in sequence growth of InxS and CuyS via successive ionic layer absorption and reaction process (SILAR) and post-annealing in sulfur ambiance. The influence of the temperature of the heat treatment on the microstructure of the CuInS2 sensitized TiO2 electrodes and the photovoltaic performance of the solar cells were investigated. The crystallization degree of CuInS2 thin films increased with the increase of the heating temperature from 400 oC, 450 oC, 500 oC to 550 oC. With the increase of the heating temperature, the photoelectric conversion efficiency of the CuInS2 sensitized solar cells sharply increased from 0.13% (450 oC) to 0.84% (550 oC, Voc = 0.37 V, Jsc = 8.44 mA/cm2, FF = 0.27). This is attributed to the well crystallization of the CuInS2 nanoparticles and the decrease of the defects.

scholarly journals Hierarchical TiO2 microspheres composed with nanoparticle-decorated nanorods for the enhanced photovoltaic performance in dye-sensitized solar cells

RSC Advances ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 3056-3062 ◽  
Author(s):  
Xiong He ◽  
Jingyu Zhang ◽  
Yan Guo ◽  
Jinghua Liu ◽  
Xin Li
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Dye Sensitized ◽  
Dye Loading ◽  
Tio2 Microspheres ◽  
Sensitized Solar Cells

Hierarchical NP-MS combines the beneficial properties of improved scattering capability, dye loading ability, electron transport and inhibited charge recombination. The photoelectric conversion efficiency up to 7.32% has been obtained.

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