Organic Solar Cells Based on Vacuum Processed Small Molecules
Author : Stefan Schäfer
Publisher :
Page : 207 pages
File Size : 18,55 MB
Release : 2011
Category :
ISBN :
Organic Solar Cells Based on Vacuum Processed Small Molecules
Author : Sarah Röttinger
Publisher :
Page : pages
File Size : 10,36 MB
Release : 2017
Category :
ISBN :
Book Description
Correlating structure and function in small molecule organic solar cells by means of scanning probe and electron microscopy
Author : Michael Scherer
Publisher : BoD – Books on Demand
Page : 202 pages
File Size : 27,97 MB
Release : 2016-07-20
Category : Science
ISBN : 3741251526
Book Description
In this work nanoscale properties in active layers of small molecule organic solar cells are studied regarding their impact on device performance. For this, the effect of variations in stack design and process conditions is examined both electrically and with high resolution imaging techniques. Two topics are addressed: (i) the visualization of charge extraction/injection properties of solar cell contacts and (ii) the tailoring of structural properties of co-evaporated material blends for bulk heterojunction (BHJ) organic solar cells. (i) We study the impact of controlled contact manipulation on the internal electric potential distribution of fluorinated zincphtalocyanine (F4ZnPc)/fullerene (C60) organic solar cells under operating conditions. In a detailed analytical study using photoelectron spectroscopy and in-operando scanning Kelvin probe microscopy it is demonstrated that the electric field distribution of organic solar cells at the maximum power point depends in an overproportional manner on contact properties and ranges from bulk to contact dominated even for solar cells with decent device performance. (ii) The morphology of co-evaporated active layer blends depends on both substrate and substrate temperature. Here we study the morphology of F4ZnPc:C60 blends with analytical transmission electron microscopy. For all substrates used is found that co-evaporation of the materials at elevated substrate temperature (100° Cel) induces a distinct phase segregation of F4ZnPc and C60. However, only when using a C60 underlayer, as in inverted devices, also the crystallinity of the segregated C60 phase increases. There is only a slight increase in crystallinity when F4ZnPc acts as an underlayer, as typically for non-inverted devices. Solar cell characterization reveals that the crystalline C60 domains are the main driving force for enhanced free charge carrier generation and higher power conversion efficiencies. With this we could provide a novel explanation why record efficiencies of small molecule organic solar cells are realized in inverted device architecture only.
Small-Molecule Semiconductors for High-Efficiency Organic Solar Cells
Author : Chuanlang Zhan
Publisher : Frontiers Media SA
Page : 184 pages
File Size : 28,73 MB
Release : 2019-08-15
Category :
ISBN : 2889459802
Book Description
Organic Solar Cells
Author : Qiquan Qiao
Publisher : CRC Press
Page : 510 pages
File Size : 29,83 MB
Release : 2017-12-19
Category : Science
ISBN : 1351831216
Book Description
Current energy consumption mainly depends on fossil fuels that are limited and can cause environmental issues such as greenhouse gas emissions and global warming. These factors have stimulated the search for alternate, clean, and renewable energy sources. Solar cells are some of the most promising clean and readily available energy sources. Plus, the successful utilization of solar energy can help reduce the dependence on fossil fuels. Recently, organic solar cells have gained extensive attention as a next-generation photovoltaic technology due to their light weight, mechanical flexibility, and solution-based cost-effective processing. Organic Solar Cells: Materials, Devices, Interfaces, and Modeling provides an in-depth understanding of the current state of the art of organic solar cell technology. Encompassing the full spectrum of organic solar cell materials, modeling and simulation, and device physics and engineering, this comprehensive text: Discusses active layer, interfacial, and transparent electrode materials Explains how to relate synthesis parameters to morphology of the photoactive layer using molecular dynamics simulations Offers insight into coupling morphology and interfaces with charge transport in organic solar cells Explores photoexcited carrier dynamics, defect states, interface engineering, and nanophase separation Covers inorganic–organic hybrids, tandem structure, and graphene-based polymer solar cells Organic Solar Cells: Materials, Devices, Interfaces, and Modeling makes an ideal reference for scientists and engineers as well as researchers and students entering the field from broad disciplines including chemistry, material science and engineering, physics, nanotechnology, nanoscience, and electrical engineering.
Organic Solar Cells
Author : Liming Ding
Publisher : John Wiley & Sons
Page : 988 pages
File Size : 22,45 MB
Release : 2022-02-09
Category : Technology & Engineering
ISBN : 3527833668
Book Description
Organic Solar Cells A timely and singular resource on the latest advances in organic photovoltaics Organic photovoltaics are gaining widespread attention due to their solution processability, tunable electronic properties, low temperature manufacture, and cheap and light materials. Their wide range of potential applications may result in significant near-term commercialization of the technology. In Organic Solar Cells: Materials Design, Technology and Commercialization, renowned scientist Dr. Liming Ding delivers a comprehensive exploration of organic solar cells, including discussions of their key materials, mechanisms, molecular designs, stability features, and applications. The book presents the most state-of-the-art developments in the field alongside fulsome treatments of the commercialization potential of various organic solar cell technologies. The author also provides: Thorough introductions to fullerene acceptors, polymer donors, and non-fullerene small molecule acceptors Comprehensive explorations of p-type molecular photovoltaic materials and polymer-polymer solar cell materials, devices, and stability Practical discussions of electron donating ladder-type heteroacenes for photovoltaic applications In-depth examinations of chlorinated organic and single-component organic solar cells, as well as the morphological characterization and manipulation of organic solar cells Perfect for materials scientists, organic and solid-state chemists, and solid-state physicists, Organic Solar Cells: Materials Design, Technology and Commercialization will also earn a place in the libraries of surface chemists and physicists and electrical engineers.
Study of a Solution-processed Small Molecule Organic Solar Cell and Comparison with Its Corresponding Vacuum Evaporated Device
Author : Antonios Nanakoudis
Publisher :
Page : pages
File Size : 17,67 MB
Release : 2014
Category :
ISBN :
Book Description
Organic Solar Cells
Author : Barry P. Rand
Publisher : CRC Press
Page : 812 pages
File Size : 20,28 MB
Release : 2014-08-26
Category : Science
ISBN : 9814463655
Book Description
Organic photovoltaic (OPV) cells have the potential to make a significant contribution to the increasing energy needs of the future. In this book, 15 chapters written by selected experts explore the required characteristics of components present in an OPV device, such as transparent electrodes, electron- and hole-conducting layers, as well as electron donor and acceptor materials. Design, preparation, and evaluation of these materials targeting highest performance are discussed. This includes contributions on modeling down to the molecular level to device-level electrical and optical testing and modeling, as well as layer morphology control and characterization. The integration of the different components in device architectures suitable for mass production is described. Finally, the technical feasibility and economic viability of large-scale manufacturing using fast inexpensive roll-to-roll deposition technologies is assessed.
Organic Photovoltaics from Small Molecules
Author : Matthew Thomas Lloyd
Publisher :
Page : 246 pages
File Size : 40,15 MB
Release : 2007
Category :
ISBN :
Book Description
Organic and Hybrid Solar Cells
Author : Lukas Schmidt-Mende
Publisher : Walter de Gruyter GmbH & Co KG
Page : 304 pages
File Size : 41,36 MB
Release : 2016-05-24
Category : Technology & Engineering
ISBN : 3110283204
Book Description
With the increasing world-energy demand there is a growing necessity for clean and renewable energy. The sun being one of the most abundant potential sources accounts for less than 1% of the global energy supply. The market for solar cells is one of the most strongly increasing markets, even though the prize of conventional solar cells is still quite high. New emerging technologies, such as organic and hybrid solar cells have the potential to decrease the price of solar energy drastically. This book offers an introduction to these new types of solar cells and discusses fabrication, different architectures and their device physics on the bases of the author's teaching course on a master degree level. A comparison with conventional solar cells will be given and the specialties of organic solar cells emphasized.
