Polymer solar cells with enhanced open-circuit voltage and efficiency
- Hsiang‐Yu Chen, Jianhui Hou, Gang Li
- Materials Science, Engineering
- 1 November 2009
Following the development of the bulk heterojunction1 structure, recent years have seen a dramatic improvement in the efficiency of polymer solar cells. Maximizing the open-circuit voltage in a…
Molecular Optimization Enables over 13% Efficiency in Organic Solar Cells.
- Wenchao Zhao, Sunsun Li, Jianhui Hou
- ChemistryJournal of the American Chemical Society
- 22 May 2017
The PBDB-T-SF:IT-4F-based OSC device showed a record high efficiency, and an efficiency of over 12% can be obtained with a thickness of 100-200 nm, suggesting the promise of fullerene-free OSCs in practical applications.
Fullerene‐Free Polymer Solar Cells with over 11% Efficiency and Excellent Thermal Stability
- Wenchao Zhao, Deping Qian, Jianhui Hou
- ChemistryAdvances in Materials
- 1 June 2016
A nonfullerene-based polymer solar cell (PSC) that significantly outperforms fullerene -based PSCs with respect to the power-conversion efficiency and excellent thermal stability is demonstrated for the first time.
Effects of Solvent Mixtures on the Nanoscale Phase Separation in Polymer Solar Cells
- Yan Yao, Jianhui Hou, Zheng Xu, Gang Li, Yang Yang
- Materials Science, Chemistry
- 24 June 2008
The mixed solvent approach has been demonstrated as a promising method to modify nanomorphology in polymer solar cells. This work aims to understand the unique role of the additive in the mixture…
Indene-C(60) bisadduct: a new acceptor for high-performance polymer solar cells.
- Youjun He, Hsiang‐Yu Chen, Jianhui Hou, Yongfang Li
- Materials Science, ChemistryJournal of the American Chemical Society
- 7 January 2010
A new soluble C(60) derivative, indene-C( 60) bisadduct (ICBA), with a LUMO energy level 0.17 eV higher than that of PCBM is synthesized and indicates that ICBA is an alternative high-performance acceptor and could be widely used in high- performance PSCs.
Efficient Polymer Solar Cells with Thin Active Layers Based on Alternating Polyfluorene Copolymer/Fullerene Bulk Heterojunctions
- Mei-Hsin Chen, Jianhui Hou, Yang Yang
- Materials Science, Chemistry
- 13 November 2009
Adv. Mater. 2009, 21, 1–5 2009 WILEY-VCH Verlag Gmb Polymer solar cells have evolved as a promising costeffective alternative to inorganic-based solar cells due to their potential to be low-cost,…
Energy‐Level Modulation of Small‐Molecule Electron Acceptors to Achieve over 12% Efficiency in Polymer Solar Cells
- Sunsun Li, L. Ye, Jianhui Hou
- Chemistry, PhysicsAdvances in Materials
- 1 November 2016
The two new SMAs (IT-M and IT-DM) end-capped by methyl-modified dicycanovinylindan-1-one exhibit upshifted lowest unoccupied molecular orbital (LUMO) levels, and hence higher open-circuit voltages can be observed in the corresponding devices.
Over 16% efficiency organic photovoltaic cells enabled by a chlorinated acceptor with increased open-circuit voltages
- Y. Cui, H. Yao, Jianhui Hou
- ChemistryNature Communications
- 7 June 2019
This study demonstrates that finely tuning the OPV materials to reduce the bandgap-voltage offset has great potential for boosting the efficiency and unexpectedly obtain higher open-circuit voltages and achieve a record high PCE of 16.5% by chlorination.
Bandgap and Molecular Energy Level Control of Conjugated Polymer Photovoltaic Materials Based on Benzo[1,2-b:4,5-b']dithiophene
- Jianhui Hou, Mi-Hyae Park, Yang Yang
- Chemistry, Materials Science
- 23 July 2008
Bandgap and molecular energy level control are of great importance in improving photovoltaic properties of conjugated polymers. A common approach to tuning these parameters is to modify the structure…
Synthesis, characterization, and photovoltaic properties of a low band gap polymer based on silole-containing polythiophenes and 2,1,3-benzothiadiazole.
- Jianhui Hou, Hsiang‐Yu Chen, Shaoqing Zhang, Gang Li, Yang Yang
- Materials Science, ChemistryJournal of the American Chemical Society
- 7 November 2008
Results indicate that PSBTBT is a promising polymer material for applications in polymer solar cells.
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