Molecular Materials for Organic Photovoltaics: Small is Beautiful
- 31 March 2014
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 26 (23), 3821-3838
- https://doi.org/10.1002/adma.201305999
Abstract
An overview of some recent developments of the chemistry of molecular donor materials for organic photovoltaics (OPV) is presented. Although molecular materials have been used for the fabrication of OPV cells from the very beginning of the field, the design of molecular donors specifically designed for OPV is a relatively recent research area. In the past few years, molecular donors have been used in both vacuum-deposited and solution-processed OPV cells and both fields have witnessed impressive progress with power conversion efficiencies crossing the symbolic limit of 10 %. However, this progress has been achieved at the price of an increasing complexity of the chemistry of active materials and of the technology of device fabrication. This evolution probably inherent to the progress of research is difficult to reconcile with the necessity for OPV to demonstrate a decisive economic advantage over existing silicon technology. In this short review various classes of molecular donors are discussed with the aim of defining possible basic molecular structures that can combine structural simplicity, low molecular weight, synthetic accessibility, scalability and that can represent possible starting points for the development of simple and cost-effective OPV materials.This publication has 131 references indexed in Scilit:
- Tuning of the Photovoltaic Parameters of Molecular Donors by Covalent BridgingAdvanced Functional Materials, 2013
- MoO3/CuI hybrid buffer layer for the optimization of organic solar cells based on a donor–acceptor triphenylamineSolar Energy Materials and Solar Cells, 2013
- Effect of synthetic accessibility on the commercial viability of organic photovoltaicsEnergy & Environmental Science, 2013
- Solution-processed organic photovoltaic cells based on a squaraine dyePhysical Chemistry Chemical Physics, 2012
- A simple merocyanine tandem solar cell with extraordinarily high open-circuit voltageApplied Physics Letters, 2011
- Reduction of Collection Efficiency of Charge Carriers with Increasing Cell Size in Polymer Bulk Heterojunction Solar CellsAdvanced Functional Materials, 2010
- High efficiency organic photovoltaic cells based on a vapor deposited squaraine donorApplied Physics Letters, 2009
- Organic photovoltaic cells with high open circuit voltages based on pentacene derivativesOrganic Electronics, 2008
- 3D π‐Conjugated Oligothiophenes Based on Sterically Twisted Bithiophene NodesAdvanced Functional Materials, 2007
- Photoelectric properties of heterojunctions formed from di-(pyridyl)-perylenetetracarboxylic diimide and copper phthalocyanine or pentaceneSynthetic Metals, 1998