An alternating copolymer based on dithienothiophene and diketopyrrolopyrrole units for thin-film transistors and organic solar cells

2013 ◽  
Vol 4 (2) ◽  
pp. 260-263 ◽  
Author(s):  
Kang Yee Seah ◽  
Jun Li ◽  
Kok-Haw Ong ◽  
Huei-Shuan Tan ◽  
Siew-Lay Lim ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Thin Film Transistors ◽  
Alternating Copolymer

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.

Quinoidal dicyanomethylene-endcapped cyclopentadithiophenes as vacuum-processable n-type semiconductors

2020 ◽  
Vol 8 (43) ◽  
pp. 15303-15311
Author(s):  
Kaan Menekse ◽  
Pengzhong Chen ◽  
Bernhard Mahlmeister ◽  
Olga Anhalt ◽  
Astrid Kudzus ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Thin Film Transistors ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film

A series of new quinoidal cyclopentadithiophene-based vacuum-processable n-type semiconductors were synthesized and characterized, followed by their successful application in organic thin-film transistors and initial studies in organic solar cells.

Pyrene end-capped oligothiophene derivatives for organic thin-film transistors and organic solar cells

2012 ◽  
Vol 36 (9) ◽  
pp. 1813 ◽  
Author(s):  
Jongchul Kwon ◽  
Jung-Pyo Hong ◽  
Seunguk Noh ◽  
Tae-Min Kim ◽  
Jang-Joo Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Thin Film Transistors ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film

Solution-processed small molecules based on indacenodithiophene for high performance thin-film transistors and organic solar cells

2014 ◽  
Vol 15 (6) ◽  
pp. 1155-1165 ◽  
Author(s):  
Wenli Tang ◽  
Dazhen Huang ◽  
Chang He ◽  
Yuanping Yi ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Thin Film Transistors ◽  
High Performance ◽  
Solution Processed

Thin Film Encapsulation of Organic Solar Cells by Direct Deposition of Polysilazanes from Solution

2019 ◽  
pp. 1900598 ◽  
Author(s):  
Iftikhar Ahmed Channa ◽  
Andreas Distler ◽  
Michael Zaiser ◽  
Christoph J. Brabec ◽  
Hans‐Joachim Egelhaaf
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Direct Deposition ◽  
Thin Film Encapsulation
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