Journal ArticleDOI
Polymer bulk heterojunction solar cells employing Förster resonance energy transfer
Jing-Shun Huang,Tenghooi Goh,Xiaokai Li,Matthew Y. Sfeir,Elizabeth A. Bielinski,Stephanie Tomasulo,Minjoo Larry Lee,Nilay Hazari,André D. Taylor +8 more
Reads0
Chats0
TLDR
Forster resonance energy transfer-based heterojunction polymer solar cells that incorporate squaraine dye have been proposed in this paper to increase the range of the spectral absorption of light and efficiently harvest photogenerated excitons.Abstract:
There are two crucial tasks for realizing high-efficiency polymer solar cells (PSCs): increasing the range of the spectral absorption of light and efficiently harvesting photogenerated excitons. Here, we describe Forster resonance energy transfer-based heterojunction polymer solar cells that incorporate squaraine dye. The high absorbance of squaraine in the near-infrared region broadens the spectral absorption of the solar cells and assists in developing an ordered nanomorphology for enhanced charge transport. Femtosecond spectroscopic studies reveal highly efficient (up to 96%) excitation energy transfer from poly(3-hexylthiophene) to squaraine occurring on a picosecond timescale. We demonstrate a 38% increase in power conversion efficiency to reach 4.5%, and suggest that this system has improved exciton migration over long distances. This architecture transcends traditional multiblend systems, allowing multiple donor materials with separate spectral responses to work synergistically, thereby enabling an improvement in light absorption and conversion. This opens up a new avenue for the development of high-efficiency polymer solar cells.read more
Citations
More filters
Journal ArticleDOI
Recent Advances in Bulk Heterojunction Polymer Solar Cells
Journal ArticleDOI
Organic Optoelectronic Materials: Mechanisms and Applications
TL;DR: The article reviews the current understanding of the physical mechanisms that determine the (opto)electronic properties of high-performance organic materials and highlights the capabilities of various experimental techniques for characterization, summarizes top-of-the-line device performance, and outlines recent trends in the further development of the field.
Journal ArticleDOI
Ternary blend polymer solar cells with enhanced power conversion efficiency
TL;DR: In this article, the use of two, rather than one, donor polymers in an organic solar cell was shown to enhance charge separation, transport and recombination, and two-layer solar cells were used.
Journal ArticleDOI
Versatile ternary organic solar cells: a critical review
TL;DR: In this paper, the authors summarize the recent progress of ternary solar cells and try to concise out the scientific issues in preparing high performance TSSs, which is the best candidate due to the cell with a high power conversion efficiency, easy fabrication and low cost.
Journal ArticleDOI
High-efficiency small-molecule ternary solar cells with a hierarchical morphology enabled by synergizing fullerene and non-fullerene acceptors
Zichun Zhou,Shengjie Xu,Jingnan Song,Yingzhi Jin,Qihui Yue,Yuhao Qian,Feng Liu,Fengling Zhang,Xiaozhang Zhu +8 more
TL;DR: Using combinatory photoactive blends is a promising approach to achieve high power conversion efficiency in ternary organic photovoltaics as discussed by the authors, however, the fundamental challenge of how to manipulate th
References
More filters
Book
Principles of fluorescence spectroscopy
TL;DR: This book describes the fundamental aspects of fluorescence, the biochemical applications of this methodology, and the instrumentation used in fluorescence spectroscopy.
Journal ArticleDOI
High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends
TL;DR: In this article, the authors report highly efficient polymer solar cells based on a bulk heterojunction of polymer poly(3-hexylthiophene) and methanofullerene.
Journal ArticleDOI
Thermally stable, efficient polymer solar cells with nanoscale control of the interpenetrating network morphology
TL;DR: By applying specific fabrication conditions summarized in the Experimental section and post-production annealing at 150°C, polymer solar cells with power-conversion efficiency approaching 5% were demonstrated.
Journal ArticleDOI
Bulk heterojunction solar cells with internal quantum efficiency approaching 100
Sung Heum Park,Sung Heum Park,Anshuman Roy,Serge Beaupré,Shinuk Cho,Shinuk Cho,Nelson E. Coates,Ji Sun Moon,Ji Sun Moon,Daniel Moses,Mario Leclerc,Kwanghee Lee,Kwanghee Lee,Alan J. Heeger,Alan J. Heeger +14 more
TL;DR: In this paper, 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.
Journal ArticleDOI
Polymer solar cells
TL;DR: In this article, a review summarizes recent progress in the development of polymer solar cells and provides a synopsis of major achievements in the field over the past few years, while potential future developments and the applications of this technology are also briefly discussed.