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Title: A solution-processed high performance organic solar cell using a small molecule with the thieno[3,2-b]thiophene central unit

Journal Article · · ChemComm
DOI:https://doi.org/10.1039/c5cc06009e· OSTI ID:1370249
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  1. Nankai Univ., Tianjin (China)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of Massachusetts, Amherst, MA (United States)
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A solution processed acceptor–donor–acceptor (A–D–A) small molecule with thieno[3,2-b]thiophene as the central building block and 2-(1,1-dicyanomethylene)-rhodanine as the terminal unit, DRCN8TT, was designed and synthesized. The optimized power conversion efficiency (PCE) of 8.11% was achieved, which is much higher than that of its analogue molecule DRCN8T. In this work, the improved performance was ascribed to the morphology which consisted of small, highly crystalline domains that were nearly commensurate with the exiton diffusion length.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Polymer-Based Materials for Harvesting Solar Energy (PHaSE)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Ministry of Science and Technology of the People’s Republic of China (MOST); National Natural Science Foundation of China (NSFC); Tianjin City
Grant/Contract Number:
SC0001087
OSTI ID:
1370249
Journal Information:
ChemComm, Vol. 51, Issue 83; Related Information: PHaSE partners with University of Massachusetts, Amherst (lead) and Lowell; Oak Ridge National Laboratory; Pennsylvania State University; Renssalaer Polytechnic Institute; University of Pittsburgh; ISSN 1359-7345
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 44 works
Citation information provided by
Web of Science

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Cited By (10)

Improved Molecular Stacking and Data-Storage Performance of Pyridine- and Pyrimidine-Substituted Small Molecules journal April 2018
Small is Powerful: Recent Progress in Solution-Processed Small Molecule Solar Cells journal January 2017
Highly Emissive Far Red/Near-IR Fluorophores Based on Borylated Fluorene-Benzothiadiazole Donor-Acceptor Materials journal July 2016
Synthesis of 3 H -Benzo[e]indoline and Its Application to Small-Molecule Organic Solar Cells journal May 2018
A-π-D-π-A Electron-Donating Small Molecules for Solution-Processed Organic Solar Cells: A Review journal October 2017
Branched 2-Ethylhexyl Substituted Indacenodithieno[3,2-b]Thiophene Core Enabling Wide-Bandgap Small Molecule for Fullerene-Based Organic Solar Cells with 9.15% Efficiency: Effect of Length and Position of Fused Polycyclic Aromatic Units journal June 2018
Hyperbranched small-molecule electrolyte as cathode interfacial layers for improving the efficiency of organic photovoltaics journal February 2018
Rhodanine-based light-harvesting sensitizers: a rational comparison between 2-(1,1-dicyanomethylene)rhodanine and rhodanine-3-acetic acid journal January 2019
Small isomeric push–pull chromophores based on thienothiophenes with tunable optical (non)linearities journal January 2019
An A 2 –π–A 1 –π–A 2 -type small molecule donor for high-performance organic solar cells journal January 2019

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