Hydroiodic acid treated PEDOT:PSS thin film as transparent electrode: an approach towards ITO free organic photovoltaics

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 52019-52025 ◽  
Author(s):  
Ashis K. Sarker ◽  
Jaehoon Kim ◽  
Boon-Hong Wee ◽  
Hyung-Jun Song ◽  
Yeonkyung Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Acid Treatment ◽  
Transparent Electrode ◽  
Conductivity Enhancement ◽  
Hydroiodic Acid

Conductivity enhancement of PEDOT:PSS thin films by hydroiodic acid treatment and their application in organic solar cells.

Characteristics of Aluminum-Doped Zinc Oxide Films Grown Using Facing Target Sputtering for Transparent Electrode of Heterojunction Solar Cells

2021 ◽  
Vol 21 (3) ◽  
pp. 1799-1803
Author(s):  
Yujin Kim ◽  
Sangmo Kim ◽  
Jeongsoo Hong ◽  
Kyung Hwan Kim
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Zinc Oxide ◽  
Solar Cells ◽  
Transparent Electrode ◽  
High Energy ◽  
Heterojunction Solar Cells ◽  
Aluminum Doped Zinc Oxide ◽  
Facing Target Sputtering ◽  
High Energy Particles

In general sputtering, material characteristics can be degraded by high-energy particles located inside the plasma owing to the thin film surface. However, facing target sputtering (FTS) can be used to produce high-quality thin films through maximum control over substrate damage and the reduction of layer damage caused by high-energy particles impacting the substrate. Transparent conductive oxides (TCOs) are being applied to a variety of technologies, including displays and solar cells. The typical transparent electrode material is indium tin oxide (ITO), which contains rare and expensive raw materials. Aluminum-doped zinc oxide (AZO) has attracted increasing attention as a substitute to ITO because it is composed of abundantly available resources and is generally inexpensive. In this study, an AZO thin film was prepared using an FTS system for heterojunction solar cells. The effects of the deposition substrate temperature on the resulting electrical conductivity, structural properties, and optical properties of the AZO thin films were examined.

scholarly journals Low-Temperature ZnO Thin Film and Its Application in PbS Quantum Dot Solar Cells

2018 ◽  
Vol 34 (3) ◽  
Author(s):  
Mai Xuan Dung ◽  
Mai Van Tuan ◽  
Hoang Quang Bac ◽  
Dinh Thi Cham ◽  
Le Quang Trung ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cells ◽  
Low Temperature ◽  
Quantum Dot ◽  
Organic Solar Cells ◽  
Thin Film Transistors ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Quantum Dot Solar Cells

Zinc oxide (ZnO) has been widely deployed as electron conducting layer in emerging photovoltaics including quantum dot, perovskite and organic solar cells. Reducing the curing temperature of ZnO layer to below 200 oC is an essential requirement to reduce the cell fabrication cost enabled by large-scale processes such as ink-jet printing, spin coating or roll-roll printing. Herein, we present a novel water-based ZnO precursor stabilized with labile NH3, which allow us to spin coat crystalline ZnO thin films with temperatures below 200 oC. Thin film transistors (TFTs) and diode-type quantum dot solar cells (QD SCs) were fabricated using ZnO as electron conduction layer.  In the QD SCs, a p-type 1,2-ethylenedithiol treated PbS QDs with a bandgap of 1.4 eV was spin-coated on top of ZnO layer by a layer-by-layer solid state ligand exchange process. Electron mobility of ZnO was about 0.1 cm2V-1s-1 as determined from TFT measurements. Power conversion efficiency of solar cells: FTO/ZnO/PbS/Au-Ag was 3.0% under AM1.5 irradiation conditions. The possibility of deposition of ZnO at low temperatures demonstrated herein is of important for solution processed electronic and optoelectronic devices.  Keywords ZnO, low-temperature, quantum dots, solar cells, TFTs References [1] A. Janotti, A. Janotti, C.G. Van De Walle-fundamental of ZnO as a semiconductor, Reports on Progress in Physics, 72 (2009) 126501.[2] H. You, Y. Lin-investigation of the sol-gel method on the flexible ZnO device, International Journal of Electrochemical Science, 7 (2012) 9085–9094.[3] Y. Lin, C. Hsu, M. Tseng, J. Shyue, F. Tsai-stable and high-performance flexible ZnO thin-film transistors by atomic layer deposition, Applied Materials &Interfaces, 7(40) (2015) 22610–22617.[4] C. Lin, S. Tsai, M. Chang-Spontaneous growth by sol-gel process of low temperature ZnO as cathode buffer layer in flexible inverted organic solar cells, Organic Electronics, 46 (2017) 218-255.[5] H. Park, I. Ryu, J. Kim, S. Jeong, S. Yim, S. Jang-PbS quantum dot solar cells integrated with sol−gel-derived ZnO as an n‑type charge-selective layer, Journal of Physical Chemistry C, 118(2014) 17374−17382.[6] Y. Sun, J.H. Seo, C.J. Takacs, J. Seifter, A.J. Heeger-inverted polymer solar cells integrated with a low- temperature-annealed sol-gel-derived ZnO film as an electron transport layer Advanced Materials, 23(2011) 1679–1683.[7] V.A. Online, R. Suriano, C. Bianchi, M. Levi, S. Turri, G. Griffini-the role of sol-gel chemistry in low-temperature formation of ZnO buffer layers for polymer solar cells with improved performance, RSC Advances, 6(2016) 46915-46924.[8] X. D. Mai, J. An, H. Song, J. Jang-inverted Schottky quantum dot solar cells with enhanced carrier extraction and air-stability, Journal of Materials Chemistry A, 2 (2014) 20799–20805.[9] H. Choi, J. Lee, X.D. Mai, M.C. Beard, S.S. Yoon, S. Jeong - supersonically spray-coated colloidal quantum dot ink solar cells, Scientific Report, 7(2017) 622.[10] C.R. Newman, C.D. Frisbie, A. Demetrio, S. Filho, J. Bre- introduction to organic thin film transistors and design of n-channel organic semiconductors, Chemistry Materials, 16(2004) 4436-4451.[11] M. Asad, N. Abdul, Chapter 9: Sol-Gel-Derived Doped ZnO Thin Films: Processing, Properties, and Applications, in Recent Applications in Sol-Gel Synthesis, Edt:C. Usha. InTech, Rijeka, Croatia, 2017. [12] D. Guo, K. Sato, S. Hibino, T. Takeuchi, H. Bessho, K. Kato, Low-temperature preparation of (002)-oriented ZnO thin films by sol–gel method, Thin Solid Films, 550 (2014), 250-258. [13] S. T. Meyers, J. T. Anderson, C. M. Hung, J. Thompson, J. F. Wager, D. A. Keszler, Aqueous Inorganic Inks for Low-Temperature Fabrication of ZnO TFTs, J. Am. Chem. Soc, 130 (2008), 17603-17609.

SnO2 Thin Films Prepared by APCVD for Organic Solar Cells Application

2013 ◽  
Vol 685 ◽  
pp. 166-173 ◽  
Author(s):  
Djedjiga Hatem ◽  
Mohammed Said Belkaid
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Solar Cells ◽  
Sheet Resistance ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Transparent Electrode ◽  
Absorption Efficiency ◽  
Interfacial Layers ◽  
Glass Substrates

Abstract: The amelioration of the efficiency of photovoltaic conversion in organic solar cells can be obtained by minimizing losses in reflection and absorption in the transparent electrode/active layer interface involving increased absorption efficiency in the active layer which can be achieved by the use of TCOs with special optical and electrical properties. Tin oxide SnO2 thin films have been prepared by APCVD method using the SnCl2 as a starting material. The surface morphology of the films deposited on glass substrates were investigated by scanning electron microscopy (SEM).The ellipsometry was used to determinate the refractive index for the films deposited at 480°C and the -sheet resistance was measured using the Four-Point probe. Transmittance of SnO2 films deposited on ITO was measured by UV-visible spectroscopy. SnO2 films prepared during 11 minutes present a sheet resistance of 19.57 Ωcm-2, transmittance higher than 80% and refractive index of 1.75 can be used as interfacial layer in organic solar cells application to minimize the reflectivity. The total reflectivity of SnO2/P3HT: PCBM obtained by using these films is less than 3%. SnO2 films can also be used as interfacial layers in inverted solar cells application.

Alcohol-soluble fluorene derivate functionalized with pyridyl groups as a high-performance cathode interfacial material in organic solar cells

2021 ◽  
Author(s):  
Lin Lin ◽  
Zeping Huang ◽  
Yuanqi Luo ◽  
Tingen Peng ◽  
Baitian He ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
High Performance ◽  
Fluorene Derivative ◽  
Interfacial Material ◽  
Cathode Interlayer

The synthesis and application as a cathode interlayer in organic photovoltaics of a fluorene derivative with pyridyl functional chains are presented.

scholarly journals Predicting the photocurrent-composition dependence in organic solar cells

2021 ◽  
Author(s):  
Xabier Rodríguez-Martínez ◽  
Enrique Pascual San José ◽  
Zhuping Fei ◽  
Martin Heeney ◽  
Roger Guimera ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Composition Dependence ◽  
Continuous Development

The continuous development of improved non-fullerene acceptors and deeper knowledge of the fundamental mechanisms governing performance underpin the vertiginous increase in efficiency witnessed by organic photovoltaics. While the influence of...

scholarly journals Organic Solar Cells: High‐Efficiency Organic Photovoltaics using Eutectic Acceptor Fibrils to Achieve Current Amplification (Adv. Mater. 18/2021)

2021 ◽  
Vol 33 (18) ◽  
pp. 2170142
Author(s):  
Ming Zhang ◽  
Lei Zhu ◽  
Tianyu Hao ◽  
Guanqing Zhou ◽  
Chaoqun Qiu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Current Amplification

Unveiling the crystalline packing of Y6 in thin films by thermal induced “backbone-on” orientation

2021 ◽  
Author(s):  
Yiqun Xiao ◽  
Jun Yuan ◽  
Guodong Zhou ◽  
Ka Chak Ngan ◽  
Xinxin Xia ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Molecular Packing

Researchers are endeavoring to decode the fundamental reasons for the non-fullerene acceptor, Y6, to deliver high-performance organic solar cells. In this manuscript, we tackle this problem from the molecular packing...

scholarly journals A comparative approach to enhance the electrical performance of PEDOT:PSS as transparent electrode for organic solar cells

2019 ◽  
Vol 28 (1) ◽  
pp. 66-73
Author(s):  
Ismail Borazan ◽  
Ayşe Celik Bedeloğlu ◽  
Ali Demir
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Isopropyl Alcohol ◽  
Power Conversion ◽  
Acid Methyl Ester ◽  
Transparent Electrode ◽  
Electrical Performance ◽  
Comparative Approach ◽  
Acid Methyl ◽  
Butyric Acid Methyl Ester

In this article, the improvement in electrical performance of poly(3,4-ethylenedioxythiophene)–poly(styrenesulfonate) (PEDOT:PSS) as the transparent electrode doped with different additives (ethylene glycol (EG), isopropyl alcohol) or treatment of sulfuric acid was enhanced that organic solar cells (OSCs) were produced by using poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl C61 butyric acid methyl ester. OSCs were fabricated by the doped or treated PEDOT:PSS films as transparent electrodes. The photoelectrical measurements were carried out and the effects of doping or treatment were compared. As a result, EG-added PEDOT:PSS electrode showed the best power conversion efficiency value of 1.87% among the PEDOT:PSS anodes.

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