Special Issue "Materials for Organic Photovoltaics"
Deadline for manuscript submissions: closed (31 March 2020).
Interests: organic semiconductors; light emitting diodes (OLEDs); photovoltaics (OPVs); field effect transistors (OFETs); chemical/biological sensors for environment and human analytes
The search for clean energy sources has been a fundamental key in materials research. Particularly, the photovoltaic field attracts significant scientific and technological resources towards achieving low costs, as well as suitable and profitable power generation. In the several kinds of photovoltaic sources, organic-based devices (OPVs) are currently much more than a simple scientific curiosity. Despite their relatively low efficiencies and lifetimes, the ratio cost of production/energy produced, they are, by far, the most favorable among all types of photovoltaics that are currently known. The high-output/low cost fabrication in continuous medium based on roll-to-roll (R2R) process, together high flexible/extremely thin film panels, opened new perspectives of applications never imagined before. In the roadmap from light absorption to charge capture at electrodes, donor – acceptor materials are the device groundwork. In this base of photovoltaic process, materials and devices must fulfill the requirements for suitable energy conversion. Efficient sun light absorption, charge separation and carrier transport effects, must be correlated with the organic films formation (micro and nanostructure) and the consequent electrical phenomena. The dependence of the figures of merit with molecular conformation, and the physical models related with the energy stepwise conversion, need to be fully understand to allow reliable improvements. Factors like absorption coefficients, diffusion lengths and carrier mobilities, strongly dependent on materials and film formation, modulates all the macroscopic OPV properties. The fast progress of such interrelationship, will determine the future of the OPVs.
This Special Issue aims to focus the development of organic photovoltaics devices, in a materials relationship framework, including, but not limited to, the following topics:
- Molecular tailoring of organic semiconductors for high efficient OPVs;
- Specific low band-gap donor materials for large sun spectrum absorption;
- Materials and process for OPVs for high-throughput fabrication;
- Photo-physics and photoconductivity of organic photovoltaic materials;
- Morphology of active OPV layers, film formation and related optic-electrical phenomena;
- Electrical carrier transport on donor-acceptor structure and trapping effects on semiconductor defects;
- Adaptive OPV structure development regarding the uses of new organic semiconductors;
- New materials for OPVs for non-conventional substrates, towards lightweight, flexible, thin and outstanding technological applications;
- Physical and electrical modulation of properties of OPVs based on novel materials;
- Lab-to-fab framework for OPVs.
Prof. Dr. Luiz Fernando Ribeiro Pereira
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 papers will be 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. Materials is an international peer-reviewed open access semimonthly 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.
- New OPV donor-acceptor materials
- OPVs film morphology
- Molecular engineering and sun light absorption
- OPV efficiency and related film formation
- Impurities effects in OPV figures of merit
- Scaling-up of OPVs flexible panels
- OPV layers interfaces
- Carrier mobilities and diffusion lengths
- OPVs lifetime
- Niche applications of OPVs