Simultaneous improvement of three parameters using a binary processing solvent system approach in as-cast non-fullerene solar cells

2019 ◽  
Vol 7 (45) ◽  
pp. 25978-25984 ◽  
Author(s):  
Guoming Qin ◽  
Lianjie Zhang ◽  
Dong Yuan ◽  
Haiying Jiang ◽  
Wei Tang ◽  
...  
Keyword(s):  
Solar Cells ◽  
System Approach ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Short Circuit Current ◽  
Solvent System ◽  
Open Circuit ◽  
Binary Solvent

A binary solvent approach simultaneously improves the open-circuit voltage, short-circuit current, and fill factor, and finally elevates the as-cast photovoltaic performance.

scholarly journals Direct AFM-based nanoscale mapping and tomography of open-circuit voltages for photovoltaics

2018 ◽  
Vol 9 ◽  
pp. 1802-1808 ◽  
Author(s):  
Katherine Atamanuk ◽  
Justin Luria ◽  
Bryan D Huey
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Three Dimensional ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Photovoltaic Properties ◽  
Order Of Magnitude ◽  
Individual Grains

The nanoscale optoelectronic properties of materials can be especially important for polycrystalline photovoltaics including many sensor and solar cell designs. For thin film solar cells such as CdTe, the open-circuit voltage and short-circuit current are especially critical performance indicators, often varying between and even within individual grains. A new method for directly mapping the open-circuit voltage leverages photo-conducting AFM, along with an additional proportional-integral-derivative feedback loop configured to maintain open-circuit conditions while scanning. Alternating with short-circuit current mapping efficiently provides complementary insight into the highly microstructurally sensitive local and ensemble photovoltaic performance. Furthermore, direct open-circuit voltage mapping is compatible with tomographic AFM, which additionally leverages gradual nanoscale milling by the AFM probe essentially for serial sectioning. The two-dimensional and three-dimensional results for CdTe solar cells during in situ illumination reveal local to mesoscale contributions to PV performance based on the order of magnitude variations in photovoltaic properties with distinct grains, at grain boundaries, and for sub-granular planar defects.

Simulation of InAIN/Si Single-Heterojunction Solar Cells Using wxAMPS

2014 ◽  
Vol 665 ◽  
pp. 111-114 ◽  
Author(s):  
Ying Huang ◽  
Xiao Ming Shen ◽  
Xiao Feng Wei
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Indium Content ◽  
Open Circuit ◽  
Heterojunction Solar Cells ◽  
Si Solar Cells

In this paper, InAlN/Si single-heterojunction solar cells have been theoretically simulated based on wxAMPS software. The photovoltaic parameters, such as open circuit voltage, short circuit current, fill factor and conversion efficiency were investigated with changing the indium content and thickness of n-InAlN layer. Simulation results show that the optimum efficiency of InAlN/Si solar cells is 23.1% under AM 1.5G spectral illuminations, with the indium content and thickness of n-InAlN layer are 0.65 and 600nm, respectively. The simulation would contribute to design and fabricate high efficiency InAlN/Si solar cells in experiment.

scholarly journals Features of model thin-film solar cells photoelectric characteristics based on a non-toxic multi-component connection CuZn2AlS4

2021 ◽  
Vol 5 (3) ◽  
pp. 242-250
Author(s):  
D. Sergeyev ◽  
K. Shunkeyev ◽  
B. Kuatov ◽  
N. Zhanturina
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Quantum Efficiency ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Thin Film Solar Cells ◽  
Current Voltage

In this paper, the features of the characteristics of model thin-film solar cells based on the non-toxic multicomponent compound CuZn2AlS4 (CZAS) are considered. The main parameters (open-circuit voltage, short-circuit current, fill factor, efficiency) and characteristics (quantum efficiency, current-voltage characteristic) of thin-film solar cells based on CZAS have been determined. The minimum optimal thickness of the CZAS absorber is found (1-1.25 microns). Deterioration of the performance of solar cells with an increase in operating temperature (280-400 K) is shown. It is revealed that in the wavelength range of 390-500 nm CZAS has a high external quantum efficiency, which allows its use in designs of multi-junction solar cells designed to absorb solar radiation in the specified range. It is shown that the combination of CZAS films with a buffer layer of non-toxic ZnS increases the performance of solar cells.

Simultaneous Enhancement of Open-Circuit Voltage, Short-Circuit Current Density, and Fill Factor in Polymer Solar Cells

2011 ◽  
Vol 23 (40) ◽  
pp. 4636-4643 ◽  
Author(s):  
Zhicai He ◽  
Chengmei Zhong ◽  
Xun Huang ◽  
Wai-Yeung Wong ◽  
Hongbin Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit

Fabrication of TiO2 Nanotubes Array by Anodization for DSSC

2013 ◽  
Vol 743-744 ◽  
pp. 920-925
Author(s):  
Hong Zhou Yan ◽  
Jun You Yang ◽  
Shuang Long Feng ◽  
Ming Liu ◽  
Jiang Ying Peng ◽  
...  
Keyword(s):  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Tetrabutyl Titanate ◽  
X Ray Diffraction ◽  
X Ray

TiO2 nanotubes array was fabricated by anodization. Effect of reaction duration on the morphology of TiO2 nanotube arrays was studied detailedly. The structure and morphology of the prepared nanotubes array was characterized by X-ray diffraction and scanning electron microscopy, respectively. The fabricated TiO2 arrays were peeled off and adhered to FTO glass with adhesive (mixture of tetrabutyl titanate and polyethylene glycol), then they were sintered at 450 for photoanode of DSSC. The photovoltaic performance of the prepared sample as the DSSC anode was investigated. An open circuit voltage of 0.69V and a short circuit current density of 7.78mA/cm2 were obtained, and the fill factor and the convert efficiency were 0.517 and 2.78%, respectively.

scholarly journals Damp-Heat Induced Performance Degradation for InGaP/GaAs/Ge Triple-Junction Solar Cell

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Hwen-Fen Hong ◽  
Tsung-Shiew Huang ◽  
Wu-Yih Uen ◽  
Yen-Yeh Chen
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Triple Junction ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Energy Conversion Efficiency ◽  
Open Circuit

We performed accelerated tests on sealed and nonsealed InGaP/InGaAs/Ge triple-junction (TJ) solar cells in a complex high temperature and high humidity environment and investigated the electrical properties over time. The degradation of energy conversion efficiency in nonsealed cells was found to be more serious than that in sealed cells. The short-circuit current (ISC), open-circuit voltage (VOC), and fill factor (FF) of sealed cells changed very slightly, though the conversion efficiency decreased 3.6% over 500 h of exposure. This decrease of conversion efficiency was suggested to be due to the deterioration of silicone encapsulant. TheISC,VOC, and FF of nonsealed cells decreased with increasing exposure time. By EL and SEM analysis, the root causes of degradation can be attributed to the damage and cracks near the edge of cells induced by the moisture ingress. It resulted in shunt paths that lead to a deterioration of the conversion efficiency of solar cell by increasing the leakage current, as well as decreasing open-circuit voltage and fill factor of nonsealed solar cells.

scholarly journals Dependence of material properties and photovoltaic performance of triple cation tin perovskites on the iodide to bromide ratio

2019 ◽  
Vol 150 (11) ◽  
pp. 1921-1927 ◽  
Author(s):  
Stefan Weber ◽  
Thomas Rath ◽  
Birgit Kunert ◽  
Roland Resel ◽  
Theodoros Dimopoulos ◽  
...  
Keyword(s):  
Material Properties ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
X Ray Diffraction ◽  
X Ray

Abstract In this work, the influence of a partial introduction of bromide (x = 0–0.33) into MA0.75FA0.15PEA0.1Sn(BrxI1−x)3 (MA: methylammonium, FA: formamidinium, PEA: phenylethylammonium) triple cation tin perovskite on the material properties and photovoltaic performance is investigated and characterized. The introduction of bromide shifts the optical band gap of the perovskite films from 1.29 eV for the iodide-based perovskite to 1.50 eV for the perovskite with a bromide content of x = 0.33. X-ray diffraction measurements reveal that the size of the unit cell is also gradually reduced based on the incorporation of bromide. Regarding the photovoltaic performance of the perovskite films, it is shown that already small amounts of bromide (x = 0.08) in the perovskite system increase the open circuit voltage, short circuit current density and fill factor. The maximum power conversion efficiency of 4.63% was obtained with a bromide content of x = 0.25, which can be ascribed to the formation of homogeneous thin films in combination with higher values of the open circuit voltage. Upon introduction of a higher amount of bromide (x = 0.33), the perovskite absorber layers form pinholes, thus reducing the overall device performance. Graphic abstract

Simultaneous Improvement in Short Circuit Current, Open Circuit Voltage, and Fill Factor of Polymer Solar Cells through Ternary Strategy

2015 ◽  
Vol 7 (6) ◽  
pp. 3691-3698 ◽  
Author(s):  
Qiaoshi An ◽  
Fujun Zhang ◽  
Lingliang Li ◽  
Jian Wang ◽  
Qianqian Sun ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit

Nanostructure Control of Si and Ge Quantum Dots Based Solar Cells Using Plasma Processes

2014 ◽  
Vol 783-786 ◽  
pp. 2022-2027 ◽  
Author(s):  
Masaharu Shiratani ◽  
Giichiro Uchida ◽  
Hyun Woong Seo ◽  
Daiki Ichida ◽  
Kazunori Koga ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Electrical Power ◽  
Chemical Vapor ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Si Nanoparticles ◽  
Sensitized Solar Cells

We report characteristics of quantum dot (QD) sensitized solar cells using Si nanoparticles and Ge nanoparticles. Si nanoparticles were synthesized by multi-hollow discharge plasma chemical vapor deposition, whereas Ge nanoparticles were done by a radio frequency magnetron sputtering using Ar+H2under high pressure conditions. The electrical power generation from Si QDs and Ge QDs was confirmed. Si QD sensitized solar cells show an efficiency of 0.024%, fill factor of 0.32, short-circuit current of 0.75 mA/cm2and open-circuit voltage of 0.10 V, while Ge QD sensitized solar cells show an efficiency of 0.036%, fill factor of 0.38, short-circuit current of 0.64 mA/cm2and open-circuit voltage of 0.15 V.

scholarly journals The absorber and buffer layer thicknesses for CdTe/CdS based thin film solar cell efficiency at various operational temperatures

2021 ◽  
Vol 24 (1) ◽  
pp. 70
Author(s):  
Omar Ghanim Ghazal ◽  
Ahmed Waleed Kasim ◽  
Nabeel Zuhair Tawfeeq
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Structural Parameters ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Window Layer ◽  
The Impact

Cadmium telluride (CdTe)/cadmium sulfide (CdS) solar cell is a promising candidate for photovoltaic (PV) energy production, as fabrication costs are compared by silicon wafers. We include an analysis of CdTe/CdS solar cells while optimizing structural parameters. Solar cell capacitance simulator (SCAPS)-1D 3.3 software is used to analyze and develop energy-efficient. The impact of operating thermal efficiency on solar cells is highlighted in this article to explore the temperature dependence. PV parameters were calculated in the different absorber, buffer, and window layer thicknesses (CdTe, CdS, and SnO2). The effect of the thicknesses of the layers, and the fundamental characteristics of open-circuit voltage, fill factor, short circuit current, and solar energy conversion efficiency were studied. The results showed the thickness of the absorber and buffer layers could be optimized. The temperature had a major impact on the CdTe/CdS solar cells as well. The optimized solar cell has an efficiency performance of >14% when exposed to the AM1.5 G spectrum. CdTe 3000 nm, CdS 50 nm, SnO2 500 nm, and (at) T 300k were the I-V characteristics gave the best conversion open circuit voltage (Voc)=0.8317 volts, short circuit current density (Jsc)=23.15 mA/cm2, fill factor (FF)%=77.48, and efficiency (η)%=14.73. The results can be used to provide important guidance for future work on multi-junction solar cell design.

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