Bulk heterojunction solar cells with internal quantum efficiency approaching 100
A polymer solar-cell based on a bulk hetereojunction design with an internal quantum efficiency of over 90% across the visible spectrum (425 nm to 575 nm) is reported. The device exhibits a…
Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core
Toward a rational design of poly(2,7-carbazole) derivatives for solar cells.
- N. Blouin, A. Michaud, M. Leclerc
- Materials ScienceJournal of the American Chemical Society
- 16 January 2008
This study reveals that the alternating copolymer HOMO energy level is mainly fixed by the carbazole moiety, whereas the LUMO energylevel is mainly related to the nature of the electron-withdrawing comonomer.
A thieno[3,4-c]pyrrole-4,6-dione-based copolymer for efficient solar cells.
A new low-band-gap thieno[3,4-c]pyrrole-4,6-dione-based copolymer, PBDTTPD, has been designed and synthesized and demonstrated a power conversion efficiency of 5.5% in a bulk-heterojunction photovoltaic device having an active area of 1.0 cm(2).
Bulk heterojunction solar cells using thieno[3,4-c]pyrrole-4,6-dione and dithieno[3,2-b:2',3'-d]silole copolymer with a power conversion efficiency of 7.3%.
A new alternating copolymer of dithienosilole and thienopyrrole-4,6-dione (PDTSTPD) possesses both a low optical bandgap (1.73 eV) and a deep highest occupied molecular orbital energy level (5.57…
Exciton formation, relaxation, and decay in PCDTBT.
- N. Banerji, S. Cowan, M. Leclerc, E. Vauthey, A. Heeger
- Physics, ChemistryJournal of the American Chemical Society
- 18 November 2010
It is pointed out that exciton formation and migration in PCDTBT occur at times much longer than the ultrafast photoinduced electron transfer time in PC DTBT:fullerene blends, and alternative mechanisms that are consistent with ultrafast charge separation before localization of the primary excitation to form a bound exciton are discussed.
Colorimetric and fluorometric detection of nucleic acids using cationic polythiophene derivatives.
This is the first report on the use of singlemolecule atomic-force spectroscopy to study the reduction pathway of multiple disulfide bonds in proteins and to evaluate the distributions of intermediates obtained under different reducing conditions without separating them and without any blocking and fractionation steps.
High Efficiency Polymer Solar Cells with Long Operating Lifetimes
- Craig H. Peters, I. Sachs‐Quintana, John P. Kastrop, S. Beaupré, M. Leclerc, M. McGehee
- Materials Science
- 1 July 2011
To date there has been considerable work done in understanding and quantifying the lifetime and degradation of bulk heterojunction solar cells (BHJs) based on poly( para -phenylene vinylene) (PPV) […
Fluorescent polymeric transducer for the rapid, simple, and specific detection of nucleic acids at the zeptomole level.
This simple system is versatile enough to detect nucleic acids of various lengths, including a segment from the RNA genome of the Influenza virus, and can be done in less than 1 h, simply and affordably, and without any chemical reaction.
PCDTBT: en route for low cost plastic solar cells
Since its inception in 1995, significant advances in the field of bulk heterojunction (BHJ) solar cells have been made and polymeric semiconductors are now considered to be one of the most promising…