Conclusions and Future Aspects

Polyaniline (PANI) is one of the common and extensively explored conducting polymers due to its excellent electrochemical and electrical properties. PANI thin film is an emerging area of research owing to its various applications in the field of solar cell technologies, drug delivery, organic light emitting diodes, field-effect transistors, sensors, electrochromic displays, etc. This chapter is devoted to the conclusions and future aspects of the undertaken studies in this book. This book has eight chapters that comprise the discussion of synthesis, deposition and characterization techniques, physiochemical properties, and applications of PANI thin films.

2012 ◽  
Vol 51 (4S) ◽  
pp. 04DK07 ◽  
Author(s):  
Akinori Okada ◽  
Yoshihide Fukaya ◽  
Shu Hotta ◽  
Takeshi Yamao

2012 ◽  
Vol 2012 ◽  
pp. 1-13 ◽  
Author(s):  
Dawit Gedamu ◽  
Ingo Paulowicz ◽  
Seid Jebril ◽  
Yogendra Kumar Mishra ◽  
Rainer Adelung

1-dimensional metal and semiconductor nanostructures exhibit interesting physical properties, but their integration into modern electronic devices is often a very challenging task. Finding the appropriate supports for nanostructures and nanoscale contacts are highly desired aspects in this regard. In present work we demonstrate the fabrication of 1D nano- and mesostructures between microstructured contacts formed directly on a silicon chip either by a thin film fracture (TFF) approach or by a modified vapor-liquid-solid (MVLS) approach. In principle, both approaches offer the possibilities to integrate these nano-meso structures in wafer-level fabrications. Electrical properties of these nano-micro structures integrated on Si chips and their preliminary applications in the direction of sensors and field effect transistors are also presented.


2018 ◽  
Vol 63 (1) ◽  
pp. 70
Author(s):  
M. P. Gorishnyi ◽  
A. B. Verbitsky

The structures and the absorption and photovoltaic spectra of thin films of tetracene (TC) and tetracyanoquinodimethane (TCNQ), as well as the films of their heterostructures (TC/TCNQ) and composites (TC + TCNQ), have been studied. The heterostructures and composites are obtained by the thermal sputtering of the components – successively or simultaneously, respectively – in vacuum. The photovoltaic spectra were measured, by using the condenser method. It is found for the first time that the largest changes ΔD1 in the TC/TCNQ and TC + TCNQ absorption spectra with respect to the sum of the absorption spectra of the components are observed in the intervals of TCNQ dimeric bands at 2.214 eV (ΔD1 < 0) and in all TC bands (ΔD1 > 0). Those changes testify to the formation of charge transfer complexes between the TC (the electron donor) and TCNQ (the electron acceptor) molecules at the interfaces in the TC/TCNQ heterostructures and in the bulk of TC + TCNQ composites, which is also confirmed by the appearance of TC+- and TCNQ−-bands in the photovoltaic spectra of both the heterostructure and composite films. This result is important for a deeper understanding of the operating mechanisms in various potentially imaginable devices based on those heterostructures and composites (solar cells, field-effect transistors, and light-emitting diodes).


2008 ◽  
Vol 608 ◽  
pp. 159-179 ◽  
Author(s):  
Richard Friend

Organic materials have been developed to operate as the active semiconductor in a wide range of semiconductor devices, including light-emitting diodes, LEDs, field-effect transistors, FETs, and photovoltaic diodes, PVs. The ability to process these materials as thin films over large areas makes possible a range of applications, currently in displays, as LEDs and as active matrix FET arrays, and solar cells. This article reviews developments in semiconductor physics of these materials and in their application in semiconductor devices


2015 ◽  
Vol 3 (10) ◽  
pp. 2413-2421 ◽  
Author(s):  
Yoshihiro Kubozono ◽  
Keita Hyodo ◽  
Hiroki Mori ◽  
Shino Hamao ◽  
Hidenori Goto ◽  
...  

Field-effect transistors have been fabricated that use thin films of 2,9-dialkylated phenanthro[1,2-b:8,7-b′]dithiophenes (Cn-PDTs), with the transistor based on a thin film of C12-PDT showing aμas high as ∼2 cm2V−1s−1, which is promising for future practical electronics.


2007 ◽  
Vol 111 (1) ◽  
pp. 108-115 ◽  
Author(s):  
Takahito Oyamada ◽  
Chih-Hao Chang ◽  
Teng-Chih Chao ◽  
Fu-Chuan Fang ◽  
Chung-Chih Wu ◽  
...  

2006 ◽  
Author(s):  
R. Capelli ◽  
F. Dinelli ◽  
M. A. Loi ◽  
M. Murgia ◽  
M. Muccini

2009 ◽  
Vol 1197 ◽  
Author(s):  
Pierre-Luc T. Boudreault ◽  
Nobuyuki Miyaki ◽  
Rajib Mondal ◽  
Ming Lee Tang ◽  
Zhenan Bao ◽  
...  

AbstractWe will show the synthesis of new donor-acceptor copolymers based on 2,7-carbazole or 2,7-dibenzosilole and acenaphtho[1,2-b]thieno[3,4-e]pyrazine. After the synthesis of these new copolymers, we have characterized the materials by UV-vis, DSC, and XRD to determine the degree of organization. Afterward, we have fabricated and investigated field-effect transistors and photovoltaic cells from these polymers. The optimization of the thin film by thermal treatment have led to a field-effect mobility of 0.04 cm2/(V.s) and power conversion efficiency of 0.44%.


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