skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Simple extrapolation method to predict the electronic structure of conjugated polymers from calculations on oligomers

Journal Article · · Journal of Physical Chemistry. C
 [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)

In this study, we introduce two simple tight-binding models, which we call fragment frontier orbital extrapolations (FFOE), to extrapolate important electronic properties to the polymer limit using electronic structure calculations on only a few small oligomers. In particular, we demonstrate by comparison to explicit density functional theory calculations that for long oligomers the energies of the highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO), and of the first electronic excited state are accurately described as a function of number of repeat units by a simple effective Hamiltonian parameterized from electronic structure calculations on monomers, dimers and, optionally, tetramers. For the alternating copolymer materials that currently comprise some of the most efficient polymer organic photovoltaic devices one can use these simple but rigorous models to extrapolate computed properties to the polymer limit based on calculations on a small number of low-molecular-weight oligomers.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1253911
Report Number(s):
NREL/JA-2C00-65033
Journal Information:
Journal of Physical Chemistry. C, Vol. 120, Issue 18; Related Information: Journal of Physical Chemistry C; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

References (53)

The path to ubiquitous and low-cost organic electronic appliances on plastic journal April 2004
Highly Phosphorescent Bis-Cyclometalated Iridium Complexes:  Synthesis, Photophysical Characterization, and Use in Organic Light Emitting Diodes journal May 2001
White Organic Light-Emitting Devices for Solid-State Lighting journal September 2004
Realization of a blue-light-emitting device using poly(p-phenylene) journal January 1992
Electroluminescence from oligothiophene-based light-emitting devices journal December 1993
Charge Transport in Organic Semiconductors journal April 2007
Thienothiophenes, Dithienothiophenes, and Thienoacenes: Syntheses, Oligomers, Polymers, and Properties journal April 2015
Electron and Ambipolar Transport in Organic Field-Effect Transistors journal April 2007
Thieno[3,4- c ]pyrrole-4,6-dione Containing Copolymers for High Performance Field-Effect Transistors journal May 2013
Temperature and gate voltage dependence of hole mobility in polycrystalline oligothiophene thin film transistors journal May 2000
All-organic optoelectronic sensor for pulse oximetry journal December 2014
Rational Design of High Performance Conjugated Polymers for Organic Solar Cells journal January 2012
Polymer solar cells journal February 2012
25th Anniversary Article: A Decade of Organic/Polymeric Photovoltaic Research journal September 2013
Plastic photovoltaic devices journal September 2004
Recyclable organic solar cells on cellulose nanocrystal substrates journal March 2013
Solar cell efficiency tables (Version 45): Solar cell efficiency tables journal December 2014
Design Rules for Donors in Bulk-Heterojunction Solar Cells—Towards 10 % Energy-Conversion Efficiency journal March 2006
The Next Breakthrough for Organic Photovoltaics? journal December 2014
Recent Advances in Bulk Heterojunction Polymer Solar Cells journal August 2015
Charge-Transfer and Energy-Transfer Processes in π-Conjugated Oligomers and Polymers:  A Molecular Picture journal November 2004
Why Holes and Electrons Separate So Well in Polymer/Fullerene Photovoltaic Cells journal October 2011
Integrating theory, synthesis, spectroscopy and device efficiency to design and characterize donor materials for organic photovoltaics: a case study including 12 donors journal January 2015
Imide/amide based π-conjugated polymers for organic electronics journal December 2013
The Harvard Clean Energy Project: Large-Scale Computational Screening and Design of Organic Photovoltaics on the World Community Grid journal August 2011
Efficient Computational Screening of Organic Polymer Photovoltaics journal April 2013
Electronic structure of conducting polymers: Limitations of oligomer extrapolation approximations and effects of heteroatoms journal July 2003
Optical Bandgaps of π-Conjugated Organic Materials at the Polymer Limit: Experiment and Theory journal January 2007
Electronic Properties of Vinylene-Linked Heterocyclic Conducting Polymers: Predictive Design and Rational Guidance from DFT Calculations journal August 2011
Bandgap calculations for conjugated polymers journal March 2004
From Oligomers to Polymer:  Convergence in the HOMO−LUMO Gaps of Conjugated Oligomers journal November 2006
A combined semiempirical-DFT study of oligomers within the finite-chain approximation, evolution from oligomers to polymers journal June 2009
Theoretical Investigations on Donor–Acceptor Conjugated Copolymers Based on Naphtho[1,2-c:5,6-c]bis[1,2,5]thiadiazole for Organic Solar Cell Applications journal December 2012
Theoretical investigations on the electronic and optical characteristics of fused-ring homopolymers: Comparison of oligomer method and PBC−DFT method journal May 2013
Computational engineering of low bandgap copolymers journal January 2013
Benzodithiophene and Imide-Based Copolymers for Photovoltaic Applications journal March 2012
What I like about Hückel theory journal January 2006
Reviewing Extrapolation Procedures of the Electronic Properties on the π-Conjugated Polymer Limit journal July 2012
New insights on the nature of two-dimensional polarons in semiconducting polymers: Infrared absorption in poly(3-hexylthiophene) journal June 2014
An ad hoc tight binding method to study the electronic structure of semiconducting polymers journal October 2009
Density of States and Wave Function Localization in Disordered Conjugated Polymers: A Large Scale Computational Study journal March 2011
Parameter free calculation of the subgap density of states in poly(3-hexylthiophene) journal January 2014
Carbazole-Based Copolymers: Effects of Conjugation Breaks and Steric Hindrance journal April 2011
5,10-Dihydroindolo[3,2- b ]indole-Based Copolymers with Alternating Donor and Acceptor Moieties for Organic Photovoltaics journal February 2013
Ethynylene-Linked Donor–Acceptor Alternating Copolymers journal April 2013
Cyclopenta[c]thiophene-4,6-dione-Based Copolymers as Organic Photovoltaic Donor Materials journal April 2014
A survey of Hammett substituent constants and resonance and field parameters journal March 1991
Transport Properties in the Rubrene Crystal: Electronic Coupling and Vibrational Reorganization Energy journal April 2005
Absolute Rate of Charge Separation and Recombination in a Molecular Model of the P3HT/PCBM Interface journal December 2010
Relationship between Molecular Structure and Electron Transfer in a Polymeric Nitroxyl-Radical Energy Storage Material journal July 2014
Synthesis and Characterization of 5-Octylthieno[3,4- c ]pyrrole-4,6-dione Derivatives As New Monomers for Conjugated Copolymers journal January 2011
Understanding Low Bandgap Polymer PTB7 and Optimizing Polymer Solar Cells Based on It journal March 2014
Structural and Conformational Dispersion in the Rational Design of Conjugated Polymers journal January 2014

Cited By (6)

Electronic Structure Trumps Planarity: Unexpected Narrow Exciton Delocalization in PNDIT2 Revealed by Time-Resolved Electron Paramagnetic Resonance (EPR) Spectroscopy journal January 2018
On the Design of Host–Guest Light‐Emitting Electrochemical Cells: Should the Guest be Physically Blended or Chemically Incorporated into the Host for Efficient Emission? journal May 2019
Message-passing neural networks for high-throughput polymer screening journal June 2019
Influence of conjugation length on ultrafast electronic tunneling in organic semiconductor thin films journal January 2018
Machine learning-based screening of complex molecules for polymer solar cells journal June 2018
Structure–Function Relationship of Organic Semiconductors: Detailed Insights From Time-Resolved EPR Spectroscopy journal February 2019