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.

Optical Absorption Enhancement in Polymer BHJ thin Film Using Ag Nanostructures: A Simulation Study

2020 ◽  
Vol 16 (4) ◽  
pp. 556-567
Author(s):  
Asma Khalil ◽  
Zubair Ahmad ◽  
Farid Touati ◽  
Mohamed Masmoudi
Keyword(s):  
Absorption Spectrum ◽  
Solar Cell ◽  
Methyl Ester ◽  
Butyric Acid ◽  
Organic Solar Cell ◽  
Short Circuit ◽  
Acid Methyl Ester ◽  
Short Circuit Current ◽  
Acid Methyl ◽  
Butyric Acid Methyl Ester

Background: The photo-absorption and light trapping through the different layers of the organic solar cell structures are a growing concern now-a-days as it affects dramatically the overall efficiency of the cells. In fact, selecting the right material combination is a key factor in increasing the efficiency in the layers. In addition to good absorption properties, insertion of nanostructures has been proved in recent researches to affect significantly the light trapping inside the organic solar cell. All these factors are determined to expand the absorption spectrum and tailor it to a wider spectrum. Objective: The purpose of this investigation is to explore the consequence of the incorporation of the Ag nanostructures, with different sizes and structures, on the photo absorption of the organic BHJ thin films. Methods: Through a three-dimensional Maxwell solver software, Lumerical FDTD, a simulation and comparison of the optical absorption of the three famous organic materials blends poly(3- hexylthiophene): phenyl C71 butyric acid methyl ester (P3HT:PCBM), poly[N-9″-heptadecanyl-2,7- carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)]: phenyl C71 butyric acid methyl ester (PCDTBT:PCBM) and poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene)-alt- 4,7-(2,1,3-benzothiadiazole)]: phenyl C71 butyric acid methyl ester (PCDPDTBT:PCBM) has been conducted. Furthermore, FDTD simulation study of the incorporation of nanoparticles structures with different sizes, in different locations and concentrations through a bulk heterojunction organic solar cell structure has also been performed. Results: It has been demonstrated that embedding nanostructures in different locations of the cell, specifically in the active layer and the hole transporting layer had a considerable effect of widening the absorption spectrum and increasing the short circuit current. The effect of incorporation the nanostructures in the active layer has been proved to be greater than in the HTL. Furthermore, the comparison results showed that, PCDTBT:PCBM is no more advantageous over P3HT:PCBM and PCPDTBT:PCBM, and P3HT:PCBM took the lead and showed better performance in terms of absorption spectrum and short circuit current value. Conclusion: This work revealed the significant effect of size, location and concentration of the Ag nanostructures while incorporated in the organic solar cell. In fact, embedding nanostructures in the solar cell widen the absorption spectrum and increases the short circuit current, this result has been proven to be significant only when the nanostructures are inserted in the active layer following specific dimensions and structures.

Enhancement of Active Layer Characteristics with Solvent Spray Annealing Treatment for Organic Solar Cell

2012 ◽  
Vol 51 (8R) ◽  
pp. 088003 ◽  
Author(s):  
Kyu-Jin Kim ◽  
Jin-Ju Bae ◽  
Yoon-Sik Seo ◽  
Byoung-Ho Kang ◽  
Se-Hyuk Yeom ◽  
...  
Keyword(s):  
Solar Cell ◽  
Active Layer ◽  
Organic Solar Cell ◽  
Annealing Treatment

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.

Enhancement of Active Layer Characteristics with Solvent Spray Annealing Treatment for Organic Solar Cell

2012 ◽  
Vol 51 ◽  
pp. 088003
Author(s):  
Kyu-Jin Kim ◽  
Jin-Ju Bae ◽  
Yoon-Sik Seo ◽  
Byoung-Ho Kang ◽  
Se-Hyuk Yeom ◽  
...  
Keyword(s):  
Solar Cell ◽  
Active Layer ◽  
Organic Solar Cell ◽  
Annealing Treatment
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