Journal Article10.1021/AR900041B
Molecular bulk heterojunctions: an emerging approach to organic solar cells.
707
TL;DR: Results show that soluble molecular donors can lead to BHJ cells that combine high conversion efficiency with the distinct advantages of working with single molecules, including structural definition, synthesis, purification, and reproducibility.
read more
Abstract: The predicted exhaustion of fossil energy resources and the pressure of environmental constraints are stimulating an intensification of research on renewable energy sources, in particular, on the photovoltaic conversion of solar energy. In this context, organic solar cells are attracting increasing interest that is motivated by the possibility of fabricating large-area, lightweight, and flexible devices using simple techniques with low environmental impact. Organic solar cells are based on a heterojunction resulting from the contact of a donor (D) and an acceptor (A) material. Absorption of solar photons creates excitons, Coulombically bound electron−hole pairs, which diffuse to the D/A interface, where they are dissociated into free holes and electrons by the electric field. D/A heterojunctions can be created with two types of architectures, namely, bilayer heterojunction and bulk heterojunction (BHJ) solar cells. BHJ cells combine the advantages of easier fabrication and higher conversion efficiency due...
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
An investigation of the role acceptor side chains play in the processibility and efficiency of organic solar cells fabricated from small molecular donors featuring 3,4-ethylenedioxythiophene cores
Natalie A. Mica,Sondos Abdullah J Almahmoud,L. Krishnan Jagadamma,Graeme Cooke,Ifor D. W. Samuel +4 more
TL;DR: In this article, the authors synthesized two small molecules based on an alternating A-D-A structure, utilizing a central EDOT donor moiety and either 2-ethylhexyl cyanoacetate (SAM-72) or N-(2-hexyl)cyanoacetamide (SAM)-80) units as acceptor termini.
Interpenetrating morphology based on highly crystalline small molecule and PCBM blends
TL;DR: In this paper, the morphological characterization of triisopropylsilylethynyl-dibenzochrysene (TIPS-DBC:PCBM) blends, a bulk heterojunction (BHJ) solar cell system based on a highly crystalline small molecule donor, was reported.
Microwave assisted synthesis of bithiophene based donor-acceptor-donor oligomers and their optoelectronic performances
TL;DR: In this article, the authors presented the synthesis of two novel bithiophene based symmetrical π conjugated oligomers with donor-acceptor-donor (D-A-D) structures by microwave assisted PdCl 2 (dppf) catalyzed Suzuki coupling reaction.
6
Interfacial modification of the working electrode of dye-sensitized solar cells to improve the charge transport properties
TL;DR: In this paper, self-assembled monolayers (SAMs) with multiple carboxylic acid functional groups were passivated on the FTO electrode surface prior to the fabrication of the TiO2 absorption layer.
6
Synthesis and photovoltaic response of a solution-processable dithienyldiketopyrrolopyrrole-based molecular semiconductor with thienylvinylthienyl endgroups
Chun-Hui Zhang,Wan-Yi Tan,Liping Wang,Qingduan Li,Rui Zhou,Ju Huang,Wei Xinfeng,Yan Xia,Yi-Feng He,Xu-Hui Zhu,Junbiao Peng,Yong Cao +11 more
TL;DR: In this article, the authors describe the synthesis and preliminary photovoltaic performance of a solution-processable organic small-molecule electron donor DT-DPPðTVTÞ.
5
References
•Book
Handbook of conducting polymers
Terje A. Skotheim,Ronald L. Elsenbaumer,John R. Reynolds +2 more
- 01 Jan 1986
TL;DR: In this paper, the authors presented the theory and properties of conjugated polymers, including transport, optical, and self-assembly properties of poly(3,4-Ethylenedioxythiophene)-polymers.
8.3K
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.
5.7K
Two‐layer organic photovoltaic cell
TL;DR: In this paper, a two-layer organic photovoltaic cell was fabricated from copper phthalocyanine and a perylene tetracarboxylic derivative, achieving a power conversion efficiency of about 1% under simulated AM2 illumination.
5.1K
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.
4.7K
Photoinduced electron transfer from a conducting polymer to buckminsterfullerene.
TL;DR: Because the photoluminescence in the conducting polymer is quenched by interaction with C60, the data imply that charge transfer from the excited state occurs on a picosecond time scale.
4.3K