Effect of Ultrasonic Agitation and Spin Coating Speed on the Photovoltaic Properties of Inverted Organic Solar Cell Using Solution-Dispersed Copper Iodide as Anode Buffer Layer

2020 ◽  
Vol 301 ◽  
pp. 153-159
Author(s):  
Farah Liyana Khairulaman ◽  
Chi Chin Yap
Keyword(s):  
Solar Cell ◽  
Buffer Layer ◽  
Active Layer ◽  
Spin Coating ◽  
Organic Solar Cell ◽  
Acid Methyl Ester ◽  
Acetonitrile Solution ◽  
Copper Iodide ◽  
Ultrasonic Agitation ◽  
Anode Buffer Layer

Previous study showed that the introduction of solution-dispersed copper iodide (CuI) as anode buffer layer has improved the performance of inverted type organic solar cell. However, the CuI preparation parameters have yet to be optimized for the inverted type organic solar cell. In this work, the effect of ultrasonic agitation of CuI solution on inverted type organic solar cell based on zinc oxide (ZnO)/poly(3-hexylthiophene) (P3HT):(6,6)-phenyl-C61-butyric acid methyl ester (PCBM) has been studied. ZnO, acting as electron transporter, was spin-coated on top of fluorine tin oxide (FTO) substrate, while the active layer consisting of P3HT:PCBM as the electron donor and electron acceptor was spin-coated onto the ZnO layer and the top electrode, silver (Ag) was then thermally evaporated. CuI dispersed in acetonitrile solution was ultrasonicated with durations of 10, 20 and 30 min and then was spin-coated on the active layer. It was found that solution-dispersed CuI with longer ultrasonic agitation duration attained a relatively higher PCE than that with shorter duration and the highest PCE was 2.13%, achieved at 30 min ultrasonic agitation due to good film surface morphology. For further optimization, the deposition of CuI was carried out using different spin coating speeds of 1000 and 3000 rpm. The optimum PCE obtained was 2.29 at a spin coating speed of 3000 rpm as a result of uniform layer of CuI.

Room temperature solution processed tungsten carbide as an efficient hole extraction layer for organic photovoltaics

2014 ◽  
Vol 2 (11) ◽  
pp. 3734-3740 ◽  
Author(s):  
Wei Cui ◽  
Zhongwei Wu ◽  
Changhai Liu ◽  
Mingxing Wu ◽  
Tingli Ma ◽  
...  
Keyword(s):  
Solar Cell ◽  
Tungsten Carbide ◽  
Buffer Layer ◽  
Organic Photovoltaics ◽  
Organic Solar Cell ◽  
High Performance ◽  
Room Temperature ◽  
Solution Processed ◽  
Anode Buffer Layer ◽  
Temperature Solution

We demonstrated tungsten carbide (WC) as an efficient anode buffer layer for a high-performance inverted organic solar cell.

Investigation of Annealing Effect on Optoelectronic Performance of Active Layer in Poly Organic Solar Cell

2013 ◽  
Vol 860-863 ◽  
pp. 69-74
Author(s):  
Chuan Kun Wang ◽  
Heng Ma ◽  
Meng Li ◽  
Xiu Gong ◽  
Chen Xi Li
Keyword(s):  
Solar Cell ◽  
Active Layer ◽  
Organic Solar Cell ◽  
Annealing Temperature ◽  
Acid Methyl Ester ◽  
Annealing Treatment ◽  
Xrd Analysis ◽  
Annealing Effect ◽  
Light Transmittance ◽  
Acid Methyl

This paper reports mainly a work of the influence of annealing on the solar cell which the active layer is made from poly (3-hexylthiophene) and [6,-phenyl C61 butyric acid methyl ester. XRD analysis of the active layer indicates that the layer annealing can improve the film crystallization. With the reducing of light reflection rate, the light transmittance rate improves due to the annealing treatment of the active layer. Comparing in various annealing temperature, it is found that a better result can be obtained when the annealing temperature is 140 °C. At this annealing temperature, the organic solar cell brings out relatively high conversion efficiency in the experiment.

Performance of P3HT:PCBM Organic Solar Cell with ZnO Buffer Layer

2014 ◽  
Vol 925 ◽  
pp. 580-584 ◽  
Author(s):  
Mohamad Syafiq Alias ◽  
Sharul Ashikin Kamaruddin ◽  
Che Ani Norhidayah ◽  
Nurulnadia Sarip ◽  
Nayan Nafarizal ◽  
...  
Keyword(s):  
Solar Cell ◽  
Buffer Layer ◽  
Organic Solar Cell ◽  
Bulk Heterojunction ◽  
Short Circuit ◽  
Acid Methyl Ester ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Surface Topology ◽  
Solar Simulator

In this paper, we explore the characteristics of bulk heterojunction solar cell based on poly (3-hexyl thiophene) [P3HT] and [6,6]-phenyl-C61-butyric acid methyl ester [PCBM] by introducing a buffer layer with device configuration of ITO/ZnO/P3HT:PCBM/Au. Nanostructured ZnO with individual diameter around 20-50 nm was used as the buffer layer and its effects on the short circuit current density, Jsc and open circuit voltage, Voc were investigated. It was found that, the electrical characteristic of the organic solar cell was obviously changed by introducing the buffer layer. Solar cell characteristic with Voc of 0.3939 V was obtained but the Jsc was very small. The surface topology of the P3HT:PCBM was investigated using an atomic force microscopy (AFM). ZnO nanoparticles were observed using a field emission scanning electron microscope (FESEM) and the electrical properties of the solar cell was measured using a solar simulator with a current – voltage (I-V) measurement system.

Organic Solar Cell: An Overview on Performance and Fabrication Techniques

2015 ◽  
Vol 754-755 ◽  
pp. 540-545 ◽  
Author(s):  
Nurul Bariah Idris ◽  
Mohd Natashah Norizan ◽  
Ili Salwani Mohamad
Keyword(s):  
Solar Cell ◽  
Active Layer ◽  
Spin Coating ◽  
Organic Solar Cell ◽  
Organic Materials ◽  
Fabrication Technique ◽  
Device Structure ◽  
Paper Review

This paper review based on the organic solar cell (OSC). In this review we investigates on the performance perspectives and theoretical of the solar cell using both simulation and spin coating fabrication technique. This paper reviews on progress several organic materials which use as active layer and issues on device efficiencies. This paper also review on development in device structure to get desired higher output in OSC.

Spray coated europium doped PEDOT:PSS anode buffer layer for organic solar cell: The role of electric field during deposition

2019 ◽  
Vol 66 ◽  
pp. 242-248 ◽  
Author(s):  
Tauheed Mohammad ◽  
Vishal Bharti ◽  
Vinod Kumar ◽  
Sapna Mudgal ◽  
Viresh Dutta
Keyword(s):  
Solar Cell ◽  
Electric Field ◽  
Buffer Layer ◽  
Organic Solar Cell ◽  
Anode Buffer Layer

Modelling and calculation of characteristic parameters of the active and buffer layers in organic solar cell

2020 ◽  
Vol 16 ◽  
Author(s):  
Minh Duc Tran ◽  
Nguyen Dinh Lam
Keyword(s):  
Zinc Oxide ◽  
Solar Cell ◽  
Buffer Layer ◽  
Active Layer ◽  
Light Absorption ◽  
Organic Solar Cell ◽  
Buffer Layers ◽  
Electron Transport Layer ◽  
Characteristic Parameters ◽  
Charge Mobility

Background: The active layer not only must have a strong light absorption in the visible spectrum, but must also be sufficient for charge carrier transport to the electrodes. Electrons in conducting polymer transport by hopping between different energy levels, resulted in much lower charge mobility. Therefore, the thickness of active layer must be limited so the separated charge can reach the corresponding electrodes without recombination. However, thin active layer has weaker light absorption, resulting in the low photogenerated current in organic solar cell devices. Furthermore, buffer layers usually have high charge mobility, which in turn would enhance the transportation of charge from the active layer to electrodes. Metal oxides have been studied to be used as cathode buffer layer such as titanium dioxide (TiO2), zinc oxide (ZnO), etc. Objective: In this work, behaviors of the photon-electrical characteristics with variation in thickness of the active (poly(3-hexylthiophene-2,5-diyl) and phenyl-C61 butyric acid methyl ester blend) and buffer (zinc oxide) layers were investigated. Method: The influences of the thickness of the active and buffer layers on characteristic parameters of organic solar cells were investigated by solving the drift and diffusion equation with the photogenerated current given by Hetch equation. Results: The optimum thickness was obtained around 100 nm and below 10 nm for the active and the ZnO buffer layers, respectively. Conclusion: Thinner active layer resulted in lower photocurrent due to poor light absorption while at 150 nm thick and above, PCE of the device reduced rapidly because of high recombination rate of photogenerated electron-hole pairs. ZnO buffer layer was used as an electron transport layer and a hole blocking layer in order to improve the cell’s performance. The addition of ZnO enhanced the PCE up to 2.48 times higher than conventional device.

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