Special Issue "Advances in Organic Semiconductors and Novel Applications"

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "D1: Semiconductor Devices".

Deadline for manuscript submissions: closed (25 May 2022) | Viewed by 2893

Special Issue Editors

Dr. María Elena Sánchez-Vergara
E-Mail Website
Guest Editor
Facultad de Ingeniería, Universidad Anáhuac México, Avenida Universidad Anáhuac 46, Col. Lomas Anáhuac, Estado de México, Huixquilucan 52786, Mexico
Interests: organic semiconductors; thin films; optoelectronic devices
Dr. Leon Hamui Balas
E-Mail Website
Guest Editor
Facultad de Ingeniería, Universidad Anáhuac México, Avenida Universidad Anáhuac 46, Col. Lomas Anáhuac, Estado de México, Huixquilucan 52786, Mexico
Interests: organic materials; optoelectronic properties; solar cells; electronic devices; thin films

Special Issue Information

Dear Colleagues,

The success of microelectronics is based on the important advances in the fabrication of silicon-based integrated circuits. However, a number of physical, ambient and economic factors associated with the use of silicon have motivated research into electronic systems based on other advanced technologies. Organic microelectronics is considered a promising research field because of its great potential in the applications of organic semiconductors, as an alternative to the traditional inorganic semiconductors such as silicon. Organic semiconductors can be used in electronic devices, such as photodiodes, thin film transistors, sensors, organic memories, among others.

Organic semiconductors have significant advantages, such as a cheaper and easy processing, and a good compatibility with a wide range of substrates. Since organic materials can be easily tuned to improve their electrical, optical, electrochemical and morphological properties, their potential applicability is reinforced. In this regard, the search for new organic semiconductors for optoelectronic applications has become an appealing goal for the microelectronic field. Moreover, the introduction of organic devices in the field of novel applications has attracted the interest of the industry.

We welcome the submission of original research papers, short communications, and review articles that focus on organic semiconductors and their applications.

The Special Issue on “Advances in Organic Semiconductors and Novel Applications” brings together contributions from scientists working on the latest research developments in the field of organic semiconductors, their synthesis and design, analysis, characterization, thin film fabrication, device fabrication and design, optoelectronic devices physics, and their electronic/optoelectronic applications.

We look forward to receiving your submissions!

Dr. María Elena Sánchez-Vergara
Dr. Leon Hamui Balas
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • electrical properties
  • optical properties
  • flexible electronics
  • organic semiconductor
  • organic devices and applications
  • thin film
  • semiconductors for energy
  • novel devices

Published Papers (2 papers)

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Research

Article
Naphthalocyanine-Based NIR Organic Photodiode: Understanding the Role of Different Types of Fullerenes
Micromachines 2021, 12(11), 1383; https://doi.org/10.3390/mi12111383 - 11 Nov 2021
Viewed by 711
Abstract
In this work, we presented experimental observation on solution-processed bulk heterojunction organic photodiode using vanadyl 2,11,20,29-tetra tert-butyl 2,3 naphthalocyanine (VTTBNc) as a p-type material. VTTBNc is blended with two different acceptors, which are PC61BM and PC71BM, to offer further [...] Read more.
In this work, we presented experimental observation on solution-processed bulk heterojunction organic photodiode using vanadyl 2,11,20,29-tetra tert-butyl 2,3 naphthalocyanine (VTTBNc) as a p-type material. VTTBNc is blended with two different acceptors, which are PC61BM and PC71BM, to offer further understanding in evaluating the performance in organic photodiode (OPD). The blend film of VTTBNc:PC71BM with a volumetric ratio of 1:1 exhibits optimized performance in the VTTBNc blend structure with 2.31 × 109 Jones detectivity and 26.11 mA/W responsivity at a −1 V bias. The response and recovery time of VTTBNc:PC71BM were recorded as 241 ms and 310 ms, respectively. The light absorption measurement demonstrated that VTTBNc could extend the light absorption to the near-infrared (NIR) region. The detail of the enhancement of the performance by adding VTTBNc to the blend was further explained in the discussion section. Full article
(This article belongs to the Special Issue Advances in Organic Semiconductors and Novel Applications)
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Article
Innovative Implementation of an Alternative Tetrathiafulvene Derivative for Flexible Indium Phthalocyanine Chloride-Based Solar Cells
Micromachines 2021, 12(6), 633; https://doi.org/10.3390/mi12060633 - 29 May 2021
Cited by 1 | Viewed by 1028
Abstract
Herein, we present the photovoltaic properties of an indium phthalocyanine chloride (InClPc)-based flexible planar heterojunction device, introducing the tetrathiafulvene derivative 4,4′-Dimethyl-5,5′-diphenyltetrathiafulvalene (DMDP-TTF) as the electron donor layer. UV-vis spectroscopy is widely used to characterize the electronic behavior of the InClPc/DMDP-TTF active layer. The [...] Read more.
Herein, we present the photovoltaic properties of an indium phthalocyanine chloride (InClPc)-based flexible planar heterojunction device, introducing the tetrathiafulvene derivative 4,4′-Dimethyl-5,5′-diphenyltetrathiafulvalene (DMDP-TTF) as the electron donor layer. UV-vis spectroscopy is widely used to characterize the electronic behavior of the InClPc/DMDP-TTF active layer. The interactions between the DMDP-TTF and phthalocyanine are predominantly intermolecular and the result of the aggregation of InClPc. Tauc bands were obtained at 1.41 and 2.8 eV; these energy peaks can result in a charge transfer ascribed to the transition from the DMDP-TTF to π-orbitals that are associated with the phthalocyanine ring or even with the same indium metal center. Conductive carbon (CC) was used for the cathode. Finally, an indium tin oxide (ITO)/InClPc/DMDP-TTF/CC device was fabricated by high-vacuum thermal evaporation onto a flexible substrate and the photovoltaic properties were evaluated. A diode type I-V curve behavior was observed with a photovoltaic response under illumination. A generated photocurrent of 2.25 × 10−2 A/cm2 was measured. A conductivity reduction with the incident photon energy from 1.61 × 10−7 S/cm to 1.43 × 10−7 S/cm is observed. The diode resistance presents two different behaviors with the applied voltage. A VTFL of 5.39 V, trap concentration of 7.74 × 1016 cm−3, and carrier mobility values of ~10−6 cm2/V s were calculated, showing improved characteristics via the innovative implementation of an alternative TTF-derivative, indicating that the DMDP-TTF has a strong interaction at the junction where free available states are increased, thus inducing higher mobilities due to the large number of π-orbitals, which indicates the feasibility of its use in solar cells technology. Full article
(This article belongs to the Special Issue Advances in Organic Semiconductors and Novel Applications)
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