Single-Component Organic Solar Cells with over 14% Efficiency
Single-component organic solar cells (SCOSCs), with covalently linked donor and acceptor, attract considerable attention for their improved thermodynamic stability over …
Effect of ZnO ETL and MoO3 HTL with PCDTBT:PC70BM-based BHJ organic solar cells
In this work, the authors fabricated and characterized efficient inverted organic solar cells by modifying them with a highly transparent sol–gel-derived zinc oxide (ZnO) film as an electron transport layer and optimized molybdenum trioxide (MoO3) as a hole transport layer with a very low-bandgap polymer, poly[N-900-hepta-decanyl-2,7 …
Organic solar cells: A new look at traditional models
Traditional inorganic solar cell models, originating with the work of Shockley, are widely used in understanding bulk heterojunction (BHJ) organic solar cell response (organic …
Towards Efficient Integrated Perovskite/Organic Bulk Heterojunction Solar Cells: Interfacial Energetic …
Integrated perovskite/organic bulk heterojunction (BHJ) solar cells have the potential to enhance the efficiency of perovskite solar cells by a simple one-step deposition of an organic BHJ blend photoactive layer on top of the perovskite absorber. It is found that inverted ...
Stable Organic Solar Cells Enabled by Simultaneous Hole and …
The development of high-performance organic solar cells (OSCs) with high operational stability is essential to accelerate their commercialization. Unfortunately, our understanding of the origin of instabilities in state-of-the-art OSCs based on bulk heterojunction (BHJ) featuring non-fullerene acceptors (NFAs) remains limited.
Machine learning empowers efficient design of ternary organic solar cells …
2 · We collected 14,000 data points on PM6-based ternary organic solar cells (TOSCs), used machine learning (ML) techniques for analysis, and achieved a validated efficiency of 17.21%, offering a potential solution for ML-guided efficient TOSCs. Download: Download high-res image (92KB) ...
Industrial viability of single-component organic solar cells
in microstructure-related performance losses.9–14 BHJ organic solar cells (OSCs) may suffer from severe morphological degradation, the fast burn-in decay either at the beginning of continuous decay or during the whole operation process.15 Apart from the
Organic Planar Heterojunction Solar Cells and Photodetectors …
Most organic semiconductors exhibit exciton diffusion lengths much shorter than their light absorption depths, causing PHJ photodiodes and solar cells to be inefficient. [] The absorption depth, the distance into the IT4F film at which the light dropped by a factor of 1/e, was estimated by the absorption coefficient of IT4F films based on the …
Role of interface properties in organic solar cells: from substrate …
The performance of organic solar cells (OSCs) depends on a fine, carefully optimized bulk-heterojunction (BHJ) microstructure. The understanding and manipulation of BHJ morphology have been the focus of research in optoelectronic devices. In this article, recent advances in understanding and controlling the
Organic solar cells: A new look at traditional models
Traditional inorganic solar cell models, originating with the work of Shockley, are widely used in understanding bulk heterojunction (BHJ) organic solar cell response (organic solar cells are also referred to as organic photovoltaics, or OPVs). While these models can be useful, there are several key points o
A Review on the Efficiency of Graphene‐Based BHJ Organic Solar Cells …
Organic solar cell research and device development still have a long way to go to compete with inorganic solar cells. The efficiency of inorganic devices can top 20% and the development of inorganic thin-layer and multijunction instruments will likely lead to even better performance.
Enhancing Reproducibility in Organic Solar Cell Fabrication via …
The key to developing highly efficient organic solar cells (OSCs) hinges on crafting a photoactive layer with a bulk heterojunction (BHJ) structure. In this study, we fabricated a BHJ via sequential deposition (SqD), employing a PM6 polymer and Y6 small molecules as the donor and acceptor materials, respectively. Renowned for their pivotal …
Fundamentals of bulk heterojunction organic solar cells: An …
In the last few years, the performance of organic solar cells (OSCs) based on bulk heterojunction (BHJ) structure has remarkably improved. However, for a large …
Probing the pathways of free charge generation in organic bulk …
Recent efforts in materials and device architecture optimization have pushed the power conversion efficiency of bulk heterojunction organic solar cells (BHJ …
Organic photovoltaics for simultaneous energy harvesting and high-speed MIMO optical wireless communications …
The characteristics of these solar cells were tested under both solar spectrum and indoor lighting illumination. The results are presented in the following subsections. The emission spectra of ...
Molecular interaction induced dual fibrils towards organic solar cells …
Organic solar cells (OSCs), as a type of lightweight, flexible, and solution-processable photovoltaics, have shown promising prospects in integrating with wearable clothes, smart electronics and ...
Formation of Crystalline Bulk Heterojunctions in Organic Solar Cells…
The performance of organic solar cells strongly depends on the bulk-heterojunction (BHJ) morphology of the photoactive layer. This BHJ forms during the drying of the wet-deposited solution, because of physical processes such as crystallization and/or liquid-liquid phase separation (LLPS). However, the process-structure relationship …
Effect of ZnO ETL and MoO3 HTL with PCDTBT:PC70BM-based BHJ organic solar cells
In this work, the authors fabricated and characterized efficient inverted organic solar cells by modifying them with a highly transparent sol–gel-derived zinc oxide (ZnO) film as an electron transport layer and optimized molybdenum trioxide (MoO 3) as a hole transport layer with a very low-bandgap polymer, poly[N-900-hepta-decanyl-2,7 …
In this communication, we have incorporated this structure into both bulk-heterojunction (BHJ) and single-component organic solar cells (SCOSCs). Surprisingly, mesoporous OSCs (M-OSCs) demonstrate a deteriorative efficiency in BHJ-type cells, whereas this configuration succeeds in SCOSCs, exhibiting competitive performance with planar OSCs …
Energies | Free Full-Text | Recent Advances and Challenges toward Efficient Perovskite/Organic Integrated Solar Cells …
Recently, emerging third-generation photovoltaic technologies have shown rapid progress in device performance; the power conversion efficiencies (PCEs) of organic bulk heterojunction (BHJ) and perovskite solar cells (PSCs) are now surpassing 19% and 25%, respectively. Despite this dramatic enhancement, their efficiencies are …
Graded bulk-heterojunction enables 17% binary organic solar …
Abstract. Graded bulk-heterojunction (G-BHJ) with well-defined vertical phase separation has potential to surpass classical BHJ in organic solar cells (OSCs). In …
In this communication, we have incorporated this structure into both bulk-heterojunction (BHJ) and single-component organic solar cells (SCOSCs). Surprisingly, mesoporous …
Industrial viability of single-component organic solar cells
For industrial applications, cost, stability, and efficiency should all be considered. Bulk heterojunction (BHJ) organic solar cells still suffer from stability issues despite approaching 20% efficiency. Single …
Numerical study of organic graded bulk heterojunction solar cell …
1. Introduction Organic solar cells (OSCs) have attracted more interest due to their rapid developments of power conversion efficiencies, their various cheap and low-temperature fabrication techniques (Hoppe and Sariciftci, 2004, Li et al., 2012, Heeger, 2014, Ameri et al., 2019, Ameri et al., 2020, Ameri et al., 2019).).
Why ultrafast charge separation occurs in bulk-heterojunction organic solar cells…
Bulk-heterojunction (BHJ) organic solar cells (OSCs) exhibit ultrafast charge separation (UCS) which enables lower geminate charge recombination and high internal quantum efficiency. Unravelling why UCS occurs in BHJ-OSCs is important for the exploration of devices in future, however it is still far from cle
Fundamentals of bulk heterojunction organic solar cells: An overview of stability/degradation issues and strategies …
In the last few years, the performance of organic solar cells (OSCs) based on bulk heterojunction (BHJ) structure has remarkably improved. However, for a large scale roll to roll ...
Efficient Integrated Perovskite/Organic Solar Cells via …
The architecture of integrated perovskite/organic solar cells (IPOSCs) is a promising strategy to further enhance the power conversion efficiency (PCE) by extending their photoresponse to the near-infrared range. To maximize the potential benefits of the system, it is crucial to optimize the perovskite crystallinity and intimate morphology of the …
Random vs regularized OPV: Limits of performance gain of organic bulk heterojunction solar cells by morphology …
Inexpensive solution processing of bulk heterojunction (BHJ) type organic photovoltaic (OPV) cells offers an attractive option for the low cost solar energy conversion. Solution processing creates a disordered morphology consisting of two organic semiconductors, intermixed randomly within the light-absorbing layer of the cell.
Improved performance of small molecule organic solar …
BHJ is the most popular device structure in the field of organic photovoltaic device, and almost all high efficiency organic solar cells adopt this structure. In small molecule solar...
