Journal of Photonics for Energy

Editor-in-Chief: Zakya Kafafi, Lehigh University

The Journal of Photonics for Energy (JPE) covers fundamental and applied research areas focused on the applications of photonics for renewable energy harvesting, conversion, storage, distribution, monitoring, consumption, and efficient usage.

Call For Papers
How to Submit to a Special Section

To submit a manuscript for consideration in a Special Section, please prepare the manuscript according to the journal guidelines and use the Online Submission SystemLeaving site. A cover letter indicating that the submission is intended for this special section should be included with the paper. Papers will be peer‐reviewed in accordance with the journal's established policies and procedures. Authors have the choice to publish with open access.

Festschrift of the 70th Birthday of Zeev “Valy” Vardeny
Publication Date
Special section papers are published as soon as the copyedited and typeset proofs are approved by the author.
Submission Deadline
Manuscripts due 31 December 2017
Guest Editors
Paul A. Lane

U.S. Naval Research Lab.
Optical Sciences
USA
E-mail: paul.lane@nrl.navy.mil

Scope

This special section of the Journal of Photonics for Energy accompanies a meeting organized in celebration and in honor of the 70th birthday of Professor Zeev "Valy" Vardeny. Professor Vardeny's research career has spanned a broad range of topics of interest focused on the electrical, optical and magnetic properties of organic semiconductors and their device applications in photonics, electro-optics, and optoelectronics. Device applications include organic light-emitting diodes, organic photovoltaic solar cells, and organic spin-valves.

This JPE special section is open to all physicists, chemists, and engineers who are interested in submitting original research related to the development, characterization, and/or applications of organic and hybrid semiconductors. Examples include but are not limited to the following:

  • Development and characterization of novel light-emitting, light-harvesting, and charge-transport organic semiconductor materials
  • Studies of organic semiconductors by ultrafast, steady-state, and phonon spectroscopy
  • Development of new characterization techniques and tools to identify photophysical processes in organic semiconductors
  • Optical and electronic modeling of devices, including light-emitting diodes, photovoltaic devices, and spin valves
  • Influence of morphology and structure in optical processes, charge carrier transport, and recombination
  • Stimulated emission in organic and hybrid semiconductors
  • Spin-dependent processes in organic semiconductors
  • Physics and applications of singlet fission
  • Molecular and organic plasmonics.

Peer review will commence immediately upon manuscript submission, with a goal of making a first decision within 6 weeks of manuscript submission. Special sections are opened online once a minimum of four papers have been accepted. Each paper is published as soon as the copyedited and typeset proofs are approved by the author. Submissions should follow the guidelines of JPE. Manuscripts should be submitted online at https://jpe.msubmit.net. A cover letter indicating that the submission is intended for this special section should be included.

Vardeny
Special Series on Perovskite-Based Solar Cells
Publication Date
Special section papers are published as soon as the copyedited and typeset proofs are approved by the author.
Submission Deadline
Manuscripts due 31 December 2017
Guest Editors
Ana Flavia Nogueira

University of Campinas
Chemistry Institute
P.O. Box 6154, 13083-970
Campinas, São Paulo, Brazil
E-mail: anaflavia@iqm.unicamp.br

Laura Schelhas

SLAC National Accelerator Laboratory
Applied Energy Programs
2575 Sand Hill Road, MS 69
Menlo Park, California 94025, USA
E-mail: schelhas@slac.stanford.edu

Scope

This special series of JPE will center on the science and technology of perovskite-based ABX3 where A = FA, MA, Cs, Rb; B = Pb, Sn; and X = Cl, Br, I, solar cells, which have recently gained a lot of attention due to their superior performance, reaching high power conversion efficiencies (~20%) and putting them in direct competition with their silicon-based analogues. Some of the advantages related to this solar cell technology are due to their long electron-hole diffusion lengths (>1 µm), broad light absorption from visible to near-infrared, tunability of their absorption spectra via molecular engineering (using different ligands), good solubility in organic solvents, and high charge electron and hole carrier mobilities. The ambipolar transport nature of the light-harvesting layer allows their assembly in several configurations (e.g. mesoporous and planar configurations). In spite of their quickly achieved high efficiencies, a deeper understanding of the fundamental properties is still needed, such as the nature and dynamics of the photo-excited species, the influence of the film morphology on their performance, the influence of defects, size and crystallinity of the perovskite precursors and final films, the roles played by the interfaces and contacts, and long term stability; just to list a few.

This call for papers is open to all interested applicants that have original and not yet published scientific work, or would like to write a short review article highlighting recent advances in the last 2-3 years in the area of perovskite-based solar cells. All submissions will be peer reviewed. Peer review will commence immediately upon manuscript submission, with a goal of making a first decision within 6 weeks of manuscript submission. Special sections are opened online once a minimum of four papers have been accepted. Each paper is published as soon as the copyedited and typeset proofs are approved by the author. Submissions should follow the guidelines of JPE. Manuscripts should be submitted online at https://jpe.msubmit.net. A cover letter indicating that the submission is intended for this special section should be included.

Perovskites
Special Series on Tandem Junction Solar Cells
Publication Date
Special section papers are published as soon as the copyedited and typeset proofs are approved by the author.
Submission Deadline
Manuscripts due 15 January 2018.
Guest Editors
Fatima Toor

University of Iowa
College of Engineering
Electrical & Computer Engineering
Iowa City, Iowa, United States
E-mail: fatima-toor@uiowa.edu

Arthur Onno

University College London
Electronic & Electrical Engineering Department
London WC1E 7JE, United Kingdom
E-mail: arthur.onno.13@ucl.ac.uk

Karin Hinzer

University of Ottowa
School of Electrical Engineering and Computer Science
Ottowa, Ontario, Canada
E-mail: khinzer@uottawa.ca

Scope

This special series of the Journal of Photonics for Energy (JPE) will center on high-efficiency tandem solar cell designs. Examples of research in this area include but are not limited to the following:

Ultra-high-efficiency (>40%) tandem structures for space and high-concentration photovoltaic (HCPV) applications

  • III-V multijunction solar cells
  • innovative materials for high-bandgap (>2eV) top cells and 1eV middle/bottom cells (high material quality AlGaInP, dilute nitrides, quantum well superlattices, etc.)
  • lattice-matched and metamorphic growth techniques
  • application of quantum dots to multijunction architectures, etc.

Low-cost approaches to high-efficiency (>30%) tandem cells

  • hybrid III-V/Si tandem cells (through epitaxy, wafer bonding, or mechanical stacking)
  • hybrid perovskite/Si tandem cells
  • low-cost growth techniques for III-V multijunctions (vapor phase epitaxy, high-growth-rate MOCVD)

Modeling of tandem architectures

  • optimal design of tandem cells
  • impact of luminescent efficiency and luminescent coupling
  • simulation of tunnel junction and contact architecture (2, 3, or 4-terminal devices)

Novel approaches to tandem structures

  • spectral splitting
  • PV mirrors

Characterization of tandem architectures

  • characterization techniques of individual subcells
  • outdoor measurement of tandem cells.

This call for papers is open to all interested applicants to submit original research and review articles describing advances into each of these fundamental processes in high-efficiency photovoltaic conversion.

All submissions will be peer reviewed. Peer review will commence immediately upon manuscript submission, with a goal of making a first decision within 6 weeks of manuscript submission. Special sections are opened online once a minimum of four papers have been accepted. Each paper is published as soon as the copyedited and typeset proofs are approved by the author. Submissions should follow the guidelines of JPE. Manuscripts should be submitted online at https://jpe.msubmit.net. A cover letter indicating that the submission is intended for this special section should be included.

Tandem Junction Solar Cells
Spectral Management for Renewable Energy Conversion
Publication Date
Special section papers are published as soon as the copyedited and typeset proofs are approved by the author.
Submission Deadline
Manuscripts due 31 December 2017
Guest Editors
Timothy W. Schmidt

University of New South Wales
School of Chemistry
Sydney, Australia
E-mail: timothy.schmidt@unsw.edu.au

Felix N. Castellano

North Carolina State University
Department of Chemistry
Raleigh, North Carolina, USA
E-mail: fncastel@ncsu.edu

Rowan W. MacQueen

Helmholtz-Zentrum Berlin für Materialien und Energie
Berlin, Germany
E-mail: rowan.macqueen@helmholtz-berlin.de

Murad J. Y. Tayebjee

University of Cambridge
Cavendish Laboratory
Cambridge, United Kingdom
E-mail: mjyt2@cam.ac.uk

Scope

This call for papers is open to all interested applicants to submit original research papers and review articles (by invitation) in the area of spectral management for renewable energy conversion.

Most single-threshold solar cells are limited by the number of absorbing photons above a certain threshold energy (e.g. 1.1 eV for c-Si). Energy in excess of the absorption threshold is lost as heat, which leads to the theoretical limit of power conversion efficiency of about 33% under standard sunlight illumination (AM 1.5). This energy loss is also true for most photocatalytic systems that aim to produce fuels, i.e., chemical energy conversion from solar light. The broadband solar spectrum can be utilized more efficiently if the spectrum of colors can be channelled into a narrow band of energies above the threshold of the convertor. In recent years, we have seen significant progress in studies of processes that seek to manage the solar spectrum, by either merging or splitting photon energy. Numerous studies describing photon upconversion, both in organic (triplet fusion) and inorganic materials, and photon energy splitting including singlet fission, have been reported. Materials that can exhibit triplet fusion and/or singlet fission have been incorporated into photovoltaic devices. However, efficient devices based on fusion or fission remain elusive, and there remain challenges to both strategies. This special section of the Journal of Photonics for Energy will center on materials and devices that harness spectrum transformation technologies. Examples of research in these areas include, but are not limited to, the following:

  • Upconversion materials (including rare-earth and triplet fusion)
  • Solar cells based on triplet-triplet annihilation
  • Downconversion materials (including singlet fission and multiple exciton generation)
  • Spectral-shifting for luminescence solar concentrators
  • Spectral down-shifting materials.

Original research articles describing advances in these fundamental processes of solar light harvesting and spectral manipulation, enabled by the design and development of new materials and device architectures, are welcome. All submissions will be peer reviewed. Peer review will commence immediately upon manuscript submission, with a goal of making a first decision within 6 weeks of manuscript submission. Special sections are opened online once a minimum of four papers have been accepted. Each paper is published as soon as the copyedited and typeset proofs are approved by the author. Submissions should follow the guidelines of JPE. Manuscripts should be submitted online at https://jpe.msubmit.net. A cover letter indicating that the submission is intended for this special section should be included.

Light Management for Photovoltaics with Nanostructures
Publication Date
Special section papers are published as soon as the copyedited and typeset proofs are approved by the author.
Submission Deadline
Manuscripts due 15 December 2017
Guest Editors
Diederik S. Wiersma

University of Florence
Department of Physics
Via Del Viliani 765, 50036 Vaglia (FI), Italy
E-mail: wiersma@lens.unifi.it

Zongfu Yu

University of Wisconsin, Madison
Department of Electrical and Computer Engineering
1415 Engineering Drive
Madison, Wisconsin 53706, United States
E-mail: zyu54@wisc.edu

Chen Wang

Seagate Technology
Transducer Design
7801 Computer Ave South
Bloomington, Minnesota 55435, United States
E-mail: henry.c.wang@seagate.com

Scope

This special section of the Journal of Photonics for Energy (JPE) will focus on light management of nanostructured photovoltaics. Thin-film photovoltaic devices are becoming increasingly attractive and useful for various applications. Nonetheless, many devices suffer from incomplete or low solar light absorption which leads to a small photocurrent generation and a poor power conversion efficiency. Elaborate and novel nanostructures have been designed and explored to effectively manipulate photons. This has been achieved by exploiting interference, diffraction, and resonance effects to enhance broadband absorption of the entire visible and infrared solar spectrum and in some cases widen the acceptance angle. These nanostructures including antireflection layers, front scattering surfaces, structured back reflectors, and plasmonic nanostructures, may be arranged in order, disorder, or even completely at random. Progress has been accomplished in numerical simulations where various device engineering approaches have been adopted for the optimization of light management. Meanwhile, novel fabrication techniques have been developed to integrate nanostructures in thin film photovoltaic devices with higher resolution, larger scale, and reduced cost.

This JPE special section is open to original research articles that cover experimental and theoretical studies on inorganic, organic, hybrid organic-inorganic, and perovskite photovoltaics. Examples include, but are not limited to, the following:

  • Novel nanophotonic structures for light management (e.g. metasurfaces, super absorber, zero-index materials, etc.)
  • Periodic nanostructures for light management (e.g. photonic crystals, front or back gratings, nanowires, etc.)
  • Quasi-random or disordered nanophotonics
  • Plasmonic nanostructures (e.g. metallic, metal oxides, etc.)
  • Novel fabrication techniques for the integration of thin film photovoltaics and subwavelength nanostructures
  • Optimization methods and design tools for nanostructured photovoltaic devices
  • Bio- and nature-inspired nanophotonics.

The guest editors will also invite authors who are experts in various related fields to submit short review articles highlighting recent advances in the area of photon management in photovoltaic devices. All submissions will be peer reviewed. Peer review will commence immediately upon manuscript submission, with a goal of making a first decision within 6 weeks of manuscript submission. Special sections are opened online once a minimum of four papers have been accepted. Each paper is published as soon as the copyedited and typeset proofs are approved by the author. Submissions should follow the guidelines of JPE. Manuscripts should be submitted online at https://jpe.msubmit.net. A cover letter indicating that the submission is intended for this special section should be included.

Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes
Publication Date
Special section papers are published as soon as the copyedited and typeset proofs are approved by the author.
Submission Deadline
Closed for submissions.
Guest Editors
Chihaya Adachi

Kyushu University
Center for Organic Photonics and Electronics Research (OPERA)
744 Motooka, Nishi, Fukuoka 819-0395, Japan
E-mail: adachi@opera.kyushu-u.ac.jp

Eli Zysman-Colman

Organic Semiconductor Centre
EaStCHEm School of Chemistry
University of St Andrews
North Haugh
St. Andrews, Fife, KY16 9ST, United Kingdom
E-mail: eli.zysman-colman@st-andrews.ac.uk

Scope

Since the first publication of highly efficient organic light-emitting diodes (OLEDs) from delayed fluorescence [Nature 492, pp. 234-238 (2012)], extensive studies on thermally activated delayed fluorescence (TADF) have been conducted. This has led to rapid developments in new TADF materials and positioned them as the third-generation of OLED emitters. This has been accompanied by further studies of novel device architectures as well as advances in device physics.

This call for papers is open to all interested chemists, physicists, and engineers who have original and not-yet published scientific work on TADF-OLEDs including new materials, interfaces, photophysics, device physics, and architectures. We invite original research articles that cover "state-of-the-art" TADF science and technology. Topics of interest include, but are not limited to, the following:

• New TADF emitters based on donor-acceptor structures
• Novel molecular structures for TADF, especially for blue emitters
• Interfacial issues including organic/metal, organic/metal oxide, and organic/organic
• Mechanisms for upconversion from triplet to singlet states (T1 to S1)
• Strategies for realizing upconversion with a high rate (<1 µs)
• External quantum efficiencies of TADF-OLEDs
• Device stability and operation lifetime of TADF-OLEDs

Original manuscripts on recent advances on the development of new emitting materials, novel devices, delineation of mechanisms, device physics and interface control, to list a few, are welcome.

All submissions will be peer reviewed. Peer review will commence immediately upon manuscript submission, with a goal of making a first decision within 6 weeks of manuscript submission. Special sections are opened online once a minimum of four papers have been accepted. Each paper is published as soon as the copyedited and typeset proofs are approved by the author. Submissions should follow the guidelines of JPE. Manuscripts should be submitted online at https://jpe.msubmit.net. A cover letter indicating that the submission is intended for this special section should be included.

Photophysics of Organic Photovoltaic Devices
Publication Date
Special section papers are published as soon as the copyedited and typeset proofs are approved by the author.
Submission Deadline
Manuscripts due 1 March 2018
Guest Editors
Franky So

North Carolina State University
Department of Materials Science and Engineering
Raleigh, North Carolina, United States
E-mail: fso@ncsu.edu

Sai-Wing Tsang

City University of Hong Kong
Department of Materials Science and Engineering
Hong Kong, China
E-mail: saitsang@cityu.edu.hk

Scope

Organic photovoltaic (OPV) devices have recently achieved an impressive power conversion efficiency over 13%, exceeding the previously predicted efficiency limit. The recent progress is attributed to the development of new materials, especially non-fullerene acceptors, giving rise to a large tunability in energetics and a reduction in the energy loss at the organic heterojunction interface. Recent photophysical studies have shown that both the exciton dissociation and charge transfer processes are strongly dependent on the energetics and the electronic coupling between the donor and acceptor materials. Particularly, high-efficiency OPV devices can be achieved with a negligible energy offset at the heterojunction, which contradicts the previous assumption that excess energy is required for efficient exciton dissociation. Consequently, a collective overview of the OPV device photophysical processes in different material systems is important to bring insights to future material design and device development.

This JPE special section is open to all physicists, chemists, and engineers who are interested in submitting original research on materials development, structural characterization, new characterization techniques, and tools related to photophysical processes in organic photovoltaic devices. Examples include but are not limited to the following:

  1. Development and characterization of novel organic light-harvesting and charge-transport materials
  2. Efficient photoelectron conversion processes in novel organic light-harvesting and charge transport materials
  3. Exciton dissociation, charge transfer, and recombination in OPVs
  4. Development of new characterization techniques and tools to identify competing and various photophysical processes in OPV devices
  5. Ultrafast spectroscopy and steady-state spectroscopy
  6. Optical and electronic modeling of organic photovoltaic devices
  7. Energy loss at organic donor/acceptor heterojunctions
  8. Impact of molecular packing on photovoltaic processes.

All submissions will be peer reviewed. Peer review will commence immediately upon manuscript submission, with a goal of making a first decision within 6 weeks of manuscript submission. Special sections are opened online once a minimum of four papers have been accepted. Each paper is published as soon as the copyedited and typeset proofs are approved by the author. Submissions should follow the guidelines of JPE. Manuscripts should be submitted online at https://jpe.msubmit.net. A cover letter indicating that the submission is intended for this special section should be included.

Photophysics OPV
Previously Published Special Sections

Solar Fuels Photocatalysis (January-March 2017)
Guest Editors: Jeremy Pietron and Roland Marschall

Hot Carrier Energy Harvesting and Conversion (October-December 2016)
Guest Editors: Jeremy Munday and Qiaoqiang Gan

Solid-State Lighting: Photonics and Technologies (2015)
Guest Editors: Nelson Tansu and Franky So

Hybrid Organic-Inorganic Solar Cells (2015)
Guest Editors: Ana Flavia Nogueira and Garry Rumbles

Nanophotonics and Plasmonics for Solar Energy Harvesting and Conversion (2015)
Guest Editor: Deirdre O'Carroll

Solution-Processable Organic Solar Cells (2015)
Guest Editors: Christoph J. Brabec and Tayebeh Ameri

Organic Photovoltaics (2012)
Guest Editors: Christoph Brabec, Paul Lane, and Zakya H. Kafafi

Organic Light-Emitting Materials and Devices (2012)
Guest Editors: Franky So and Chihaya Adachi

High and Low Concentrator Systems for Solar Electric Applications (2012)
Guest Editor: Kaitlyn VanSant

Reliability of Photovoltaic Cells, Modules, Components, and Systems (2012)
Guest Editors: Neelkanth G. Dhere, John H. Wohlgemuth, and Kevin Lynn

Organic Light-Emitting Materials and Devices (2011)
Guest Editors: Franky So and Chihaya Adachi

Organic Photovoltaics (2011)
Guest Editors: Christoph Brabec, Paul Lane, and Zakya H. Kafafi

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