Photovoltaic effect in single-junction organic solar cell fabricated using vanadyl phthalocyanine soluble derivative

2015 ◽  
Vol 44 (1) ◽  
pp. 26-32 ◽  
Author(s):  
F. Aziz ◽  
Z. Ahmad ◽  
S.M. Abdullah ◽  
K. Sulaiman ◽  
M.H. Sayyad
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Spin Coating ◽  
Organic Solar Cell ◽  
Photovoltaic Effect ◽  
Content Type ◽  
Single Junction ◽  
Coating Technique ◽  
Phthalocyanine Derivative

Purpose – The purpose of this paper is to study the optical and electrical characteristics of a single-junction solar cell based on a green-colour dye vanadyl 2,9,16, 23-tetraphenoxy-29H, 31H-phthalocyanine (VOPcPhO). The use of soluble vanadyl phthalocyanine derivative makes it very attractive for photovoltaic applications due to its tunable properties and high solubility. Design/methodology/approach – A photoactive layer of VOPcPhO has been sandwiched between indium tin oxide (ITO) and aluminium (Al) electrodes to produce a ITO/PEDOT:PSS/VOPcPhO/Al photovoltaic device. The VOPcPhO thin film is deposited by a simple spin coating technique. To obtain the optimal thickness for the solar cell device, different thicknesses of the photoactive layer, achieved by manipulating the spin rate, have been investigated. Findings – The device exhibited photovoltaic effect with the values of Jsc, Voc and FF equal to 5.26 × 10-6 A/cm2, 0.621 V and 0.33, respectively. The electronic parameters of the cell have been obtained from the analysis of current-voltage characteristics measured in dark. The values of ideality factor and barrier height were found to be 2.69 and 0.416 eV, respectively. The optical examination showed that the material is sensitive to light in the UV region between 270 nm and 410 nm, as well as in the visible spectrum within the range of 630 nm and 750 nm. Research limitations/implications – The solar cell based on a single layer of vanadyl phthalocyanine derivative results in low efficiency, which can be enhanced by introducing a variety of donor materials to form bulk heterojunction solar cells. Practical implications – The spin coating technique provides a simple, less expensive and effective approach for preparing thin films. Originality/value – A novel thin-film, single-junction organic solar cell, fabricated by using VOPcPhO, has been investigated for the first time ever. The vanadyl phthalocyanine derivative together with a donor material will have potential application for improved efficiency of the solar cells.

Highly improvement in efficiency of Cu(In,Ga)Se2 thin film solar cells

2020 ◽  
Vol 17 (4) ◽  
pp. 527-533
Author(s):  
Mohsen Sajadnia ◽  
Sajjad Dehghani ◽  
Zahra Noraeepoor ◽  
Mohammad Hossein Sheikhi
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Thin Film Solar Cell ◽  
Trap Density ◽  
Thin Film Solar Cells ◽  
Content Type ◽  
Cigs Thin Film ◽  
Absorbing Layer ◽  
Cigs Solar Cells

Purpose The purpose of this study is to design and optimize copper indium gallium selenide (CIGS) thin film solar cells. Design/methodology/approach A novel bi-layer CIGS thin film solar cell based on SnS is designed. To improve the performance of the CIGS based thin film solar cell a tin sulfide (SnS) layer is added to the structure, as back surface field and second absorbing layer. Defect recombination centers have a significant effect on the performance of CIGS solar cells by changing recombination rate and charge density. Therefore, performance of the proposed structure is investigated in two stages successively, considering typical and maximum reported trap density for both CIGS and SnS. To achieve valid results, the authors use previously reported experimental parameters in the simulations. Findings First by considering the typical reported trap density for both SnS and CIGS, high efficiency of 36%, was obtained. Afterward maximum reported trap densities of 1 × 1019 and 5.6 × 1015 cm−3 were considered for SnS and CIGS, respectively. The efficiency of the optimized cell is 27.17% which is achieved in CIGS and SnS thicknesses of cell are 0.3 and 0.1 µm, respectively. Therefore, even in this case, the obtained efficiency is well greater than previous structures while the absorbing layer thickness is low. Originality/value Having results similar to practical CIGS solar cells, the impact of the defects of SnS and CIGS layers was investigated. It was found that affixing SnS between CIGS and Mo layers causes a significant improvement in the efficiency of CIGS thin-film solar cell.

Production and characterization of organic solar cells

2018 ◽  
Vol 15 (4) ◽  
pp. 540-548 ◽  
Author(s):  
Kindness A.M. Uyanga ◽  
Modestus Okechukwu Okwu ◽  
A.O. Adeoye ◽  
S.E. Ogbeide
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Short Circuit ◽  
Active Material ◽  
Soda Lime Glass ◽  
Content Type ◽  
Different Temperatures

Purpose The study aims to carry out the production of a bulk heterojunction organic solar cell in a laboratory scale using a blend of poly (3-hexylthiopene) (P3HT) and [6, 6]-phenyl (C61) butyric acid methyl ether (PCBM). Design/methodology/approach Four inverted geometry organic solar cells were prepared based on 1:1 ratio of P3HT to PCBM and subjected to post annealing at different temperatures of 32, 120, 130 and 140°C. Solar cells were fabricated with structure glass/ITO/P3HT:PCBM/PEDOT:PSS/Au and characterized using Keithley 2400 series sourcemeter and a multimeter interfaced to a computer system with a LabVIEW software, which showed both dark and illumination current–voltage characteristic curves. Four reference cells were also fabricated with structure soda lime glass/P3HT:PCBM and annealed at different temperatures of 32, 120, 130 and 140°C. Findings The third organic solar cell prepared, Sample CITO, had the best performance with power conversion efficiency (PCE) of 2.0281 per cent, fill factor (FF) of 0.392, short circuit current of −0.0133 A and open circuit voltage of 0.389 V. Annealing of active layer was found to improve cell morphology, FF and PCE. Annealing of the active layer at 140°C resulted in a decrease of the PCE to 2.01 per cent. Research limitations/implications These findings are in good agreement with previous investigation in literature which reported that best annealing temperature for a 1:1 ratio blend of active material is 130°C. Ultraviolet–visible spectra on reference cells showed that sample CITO had wider absorption spectra with peak absorbance at a wavelength of 508 nm. Originality/value This research is purely original.

Energy-yield prediction for II–VI-based thin-film tandem solar cells

2016 ◽  
Vol 9 (8) ◽  
pp. 2644-2653 ◽  
Author(s):  
Jonathan P. Mailoa ◽  
Mitchell Lee ◽  
Ian M. Peters ◽  
Tonio Buonassisi ◽  
Alex Panchula ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Energy Yield ◽  
Yield Prediction ◽  
Polycrystalline Thin Film ◽  
Tandem Solar Cells ◽  
Climate Conditions ◽  
Single Junction ◽  
Yield Calculation

Polycrystalline, thin-film tandem solar cells that leverage commercial II–VI semiconductor technologies as the top cell could overcome the practical conversion-efficiency limits of single-junction solar cells. In this paper we provide energy-yield calculation of a solar cell – single-junction and tandem – in a real-world climate conditions.

Numerical modeling of CdTe solar cells thin film investigation by using PC1D model

2018 ◽  
Vol 15 (5) ◽  
pp. 549-555 ◽  
Author(s):  
Assiya Haddout ◽  
Abderrahim Raidou ◽  
Mounir Fahoume
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
High Efficiency ◽  
Photovoltaic Cell ◽  
Experimental Result ◽  
Back Surface ◽  
Content Type ◽  
One Dimensional ◽  
Cdte Solar Cell

Purpose The purpose of this paper is to study the effect of individual layers of cadmium telluride (CdTe) solar cell to improve the efficiency of the photovoltaic cell. Design/methodology/approach To improve the performances of CdTe thin-film solar cells, the thickness of CdTe and cadmium sulfide (CdS) have been modified separately. High-efficiency ultra-thin CdTe solar cell with ZnTe layer as back surface field (BSF) was achieved. The CdTe solar cell is under AM1.5 g illumination using a one-dimensional (1-D) model, i.e. personal computer one dimensional (PC1D). Findings The highest conversion efficiency of about 15.3 per cent was achieved for ultrathin CdTe solar cell with a ZnTe BSF layer. The results of simulation were compared with experimental and analytical results by other researchers. Originality/value In this paper, according to the authors’ knowledge ZnO:Al/CdS/CdTe/ZnTe is simulated by PC1D model for the first time and is compared with experimental result (ZnO:Al/CdS/CdTe). The results show a suitable performance.

Boron dipyrromethene (BODIPY) with meso-perfluorinated alkyl substituents as near infrared donors in organic solar cells

2018 ◽  
Vol 6 (38) ◽  
pp. 18583-18591 ◽  
Author(s):  
Tian-yi Li ◽  
Johannes Benduhn ◽  
Yue Li ◽  
Frank Jaiser ◽  
Donato Spoltore ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Near Infrared ◽  
Low Energy ◽  
Energy Losses ◽  
Single Junction ◽  
Boron Dipyrromethene

Three furan-fused BODIPYs were synthesized with perfluorinated alkyl substitutes on the meso-C. As NIR absorbers, a PCE of 6.4% was achieved in a single junction organic solar cell with relatively low energy losses.

Fabrication of Facile Synthesized ZnO/CuO Heterojunction Solar Cell Using Spin Coating Technique

2019 ◽  
Vol 11 (12) ◽  
pp. 1266-1272 ◽  
Author(s):  
Abdul Kuddus ◽  
Samia Tabassum ◽  
Abu Bakar Md. Ismail
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Current Density ◽  
Spin Coating ◽  
Hole Transport ◽  
Transport Layer ◽  
Spin Coating Technique ◽  
Electron Transport Layer ◽  
Coating Technique ◽  
Vis Spectroscopy

Simulation and experimentally investigation on cupric oxide (CuO) and zinc oxide (ZnO) based heterojunction solar cells (HJSC) fabricated using the sol–gel spin coating technique has been presented in this contribution. It is seen from simulated results, the photoconversion efficiency (PCE) of the hetero-junction solar cells employing with structure FTO/ZnO/CuO/Al can be enhanced through engineering on the thickness of photoactive layers, band gap and carrier concentration of photoactive materials. AMPS-1D simulated result showed cells efficiency of ∼5.5%, current density (Jsc) of 6 mA/cm2, open circuit voltage (Voc) of 0.9 V and fill-factor (FF) of 80%. Whereas solar cell fabricated with spin coating technique using optimized parameters from simulated results with conventional structure demonstrated a power conversion efficiency exceeding 1.15% with Vocof 1.36 V, Jsc of 1.99 mA/cm2 and FF of 53% without electron transport layer (ETL), hole transport layer (HTL) and anti-reflecting coating (ARC). Deposited film properties like structural, surface morphological, photovoltaic and optical were studied by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and light current density–voltage (J–V) with AM1.5 solar simulator and UV-vis Spectroscopy. Although there is a variation between simulation and experimental results due to open air fabrication environment with no charge transport layers and no anti-reflection coating, this value of inorganic HJSC efficiency is possibly the highest reported for a ZnO/CuO interface fabricated using spin coating technique that highlights spin coating as a promising technique for inexpensive and scalable fabrication of ZnO/CuO based hetero-junctions solar cell.

Absorption enhancement in a-Si thin-film solar cells based on silver nanopillar arrays

2018 ◽  
Vol 35 (4) ◽  
pp. 211-214
Author(s):  
Boyang Qu ◽  
Peng Zhang ◽  
Jianmin Luo ◽  
Shie Yang ◽  
Yongsheng Chen
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Thin Film Solar Cell ◽  
Light Trapping ◽  
Thin Film Solar Cells ◽  
Absorption Enhancement ◽  
Content Type ◽  
Si Thin Film ◽  
Nanopillar Arrays

Purpose The purpose of this paper is to investigate a light-trapping structure based on Ag nanograting for amorphous silicon (a-Si) thin-film solar cell. Silver nanopillar arrays on indium tin oxide layer of the a-Si thin-film solar cells were designed. Design/methodology/approach The effects of the geometrical parameters such as nanopillar radius (R) and array period (P) were investigated by using the finite element simulation. Findings The optimization results show that the absorption of the solar cell with Ag nanopillar structure and anti-reflection film is enhanced up to 29.5 per cent under AM1.5 illumination in the 300- to 800-nm wavelength range compared with the reference cell. Furthermore, physical mechanisms of absorption enhancement at different wavelength range are discussed according to the electrical field amplitude distributions in the solar cells. Research limitations/implications The research is still in progress. Further studies mainly focus on the performance of solar cells with different nanograting materials. Practical implications This study provides a feasible method for light-trapping structure based on Ag nanograting for a-Si thin-film solar cell. Originality/value This study is promising for the design of a-Si thin-film solar cells with enhanced performance.

scholarly journals First-principles calculation on electronic properties of Bismuth-halide inorganic perovskites for solar cell

2021 ◽  
Vol 01 (01) ◽  
pp. 56-57
Author(s):  
Galhenage A. Sewvandi ◽  
◽  
J.T.S.T. Jayawardane ◽  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Photovoltaic Effect ◽  
Power Conversion ◽  
Thin Film Solar Cells ◽  
Halide Perovskite ◽  
Lead Halide

Solar energy is a commonly used alternate source of energy and it can be utilized based on the principle of the photovoltaic effect. The photovoltaic effect converts sun energy into electrical energy using photovoltaic devices (solar cells). A solar cell device should have high efficiency and a long lifetime to be commercially beneficial. Presently, silicon and thin-film solar cells are widely employed. The crystalline solar cells are more efficient but they are also expensive. Thin-film solar cells are formed by placing one or more thin layers of photovoltaic materials on different substrates. Although these cells have a lower cost, they are also less efficient compared to Si-based solar cells. Organic-inorganic hybrid lead halide perovskite solar cells are one of the most promising low-cost power conversion efficiency technologies that could exceed the 26% threshold. However, the lack of environmental stability and of high lead toxicity are the main bottlenecks that impede the future industrialization and commercialization hybrid lead halide perovskite. Hence It is important to achieve high power conversion efficiency while also maintaining stability and non-toxicity in the development of new lead-free perovskite materials.

Preparation of H2SO4 doped Polyaniline thin film solar cells by spin coating technique

2017 ◽  
Author(s):  
Abhishek Patel ◽  
Pratik Pataniya ◽  
K. D. Patel ◽  
G. K. Solanki ◽  
V. M. Pathak
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Spin Coating ◽  
Thin Film Solar Cells ◽  
Spin Coating Technique ◽  
Coating Technique ◽  
Doped Polyaniline
Sign in / Sign up

Export Citation Format

Share Document