Molecular packing of non-fullerene acceptors for organic solar cells
Organic solar cells (OSCs) can be a promising solution for the delivery of clean and renewable energy in a number of applications [[1], [2], [3], [4]].The benefits of using organic materials have been widely discussed, which include lightweight, flexibility, desirable mechanical properties, and scalability [[1], [2], [3], [4]].The newer generations of OSCs are based on non
Electronic structure and photophysical properties of some
Context Three novel organic semiconductors (Fig. 1), which are molecule (a) and molecule (c) have the same wing unit molecules (b) and (c) have the same core unit were reported. Thus, the influence of wing units on solar cell device performance parameters such us the opto-electronics properties, non-linear optics (NLO), electronic properties, and natural
Efficient ternary organic solar cells with suppressed nonradiative
Organic solar cells (OSCs) have developed rapidly in recent years. However, the energy loss (E loss) remains a major obstacle to further improving the photovoltaic performance.To address this issue, a ternary strategy has been employed to precisely tune the E loss and boost the efficiency of OSCs. The B‒N-based polymer donor has been proved to
Efficient organic solar cells with superior
Here we report efficient normal structure organic solar cells delivering promising stability under different conditions, based on PM6:BTP-eC9 blend and AZO/Al
Regulation of molecular orientation in organic solar cells
The morphological characteristics of the active layer in organic solar cells (OSCs), encompassing phase separation structure, domain sizes, crystallinity and molecular
Rational molecular and device design enables organic solar cells
For organic solar cells to be competitive, the light-absorbing molecules should simultaneously satisfy multiple key requirements, including weak-absorption charge transfer state, high dielectric
Towards predicting the power conversion
In this study, we developed a multiscale simulation framework to estimate the power conversion efficiencies of bulk heterojunction organic solar cells based on the molecular structures of the donor and acceptor. Firstly, we proposed a
Molecular engineering and structure–property
The photoactive layer materials of organic solar cells (OSCs) play a critical role in achieving excellent performance. Chlorophyll derivatives are commonly used due to their environmental friendliness, low cost, and easy accessibility. However,
Progress in Organic Solar Cells: Materials, Physics and
Abstract Organic solar cells (OSCs) have been developed for few decades since the preparation of the first photovoltaic device, Beijing National Laboratory for Molecular, Sciences CAS Research/Education Center for
Recent progress of all-polymer solar cells – From chemical structure
Encouragingly, all-polymer solar cells largely address such problems in organic solar cells (OSCs) [31].All-polymer solar cells are a kind of OPV cells with a bulk heterojunction (BHJ) active layer of a polymeric electron donor and a polymeric electron acceptor.
Organic solar cell
An organic solar cell (OSC [1]) Recent research has shown that high-performing small molecular donor structures tend to have planar 2-D structures and can aggregate or self assemble. [121] Sine performance of these devices
Effect of molecular structure on the photochemical stability of
Effect of molecular structure on the photochemical stability of acceptor and donor polymers used in organic solar cells† Suraj Prasad, a Zewdneh Genene, b Cleber F. N. Marchiori, a Shivam Singh, a Leif K. E. Ericsson, a Ergang Wang, b C. Moyses Araujo a and Ellen Moons *a
Organic solar cells developments: What''s next?
The research of organic solar cells (OSCs) has made great progress, mainly attributed to the invention of new active layer materials and device engineering. In this comment, we focused on A–D–A type molecules and device engineering, and summarized the recent developments and future challenges from the view point of chemists, including power
Revealing the crystalline packing structure of Y6 in the active layer
The bulk heterojunction (BHJ) morphology of photovoltaic materials is crucial to the fundamental optoelectronic properties of organic solar cells (OSCs). However, in the photoactive layer, the intrinsic crystalline packing structure of Y6, currently the hallmark molecule among Y-series non-fullerene acceptor
Organic solar cell
An organic solar cell (OSC[1]) or plastic solar cell is a type of photovoltaic that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, [2] for light absorption and
Electronic structure and photophysical properties of some
The performance of organic solar cells depends on number of parameters such as energy levels of the frontier molecular orbitals, effective charge separation which signifies
Organic solar cells: Principles, materials, and working mechanism
Among the most rapidly developed solar cells belonging to the so-called third-generation photovoltaics, organic photovoltaics exhibit a variety of advantages including their lightweight,
Improving the efficiency of organic solar cells using non-fullerene
Solar energy plays a pivotal role in addressing energy challenges, and photovoltaic (PV) cells are among the most commonly utilized apparatus for converting solar energy [1].Recently, bulk heterojunction (BHJ) organic solar cells (OSCs) have escalated in popularity owing to their reduced production expenditures, straightforward production process, and inherent material
Accelerating the discovery of acceptor materials for organic solar
Organic solar cells (OSCs) have become a promising green energy technology due to their lightweight, low cost, and flexibility 1.The structure of OSCs is mainly made of bulk heterojunctions (BHJs
19.36% Efficiency Organic Solar Cells Based on
In view of this, developing highly-efficient organic photovoltaic molecules with simple chemical structure is one of the most effective countermeasures. Herein, three simple-structure terpolymers PTQ12-5,
Molecular engineering of Y‐series
The power conversion efficiencies (PCEs) of single-junction organic solar cells (OSCs) have surpassed 19%, owing to the emerging Y-series nonfullerene acceptors (NFAs).
Efficient screening framework for organic solar cells with deep
Our framework evaluates the chemical structure of the organic photovoltaic molecules directly and accurately. J. et al. 15.71% Efficiency all‐small‐molecule organic solar cells based on
Fundamentals of organic solar cells: A review on mobility issues
In the past few years, there have been impressive breakthroughs to enhance the structure of organic solar cells (OSCs) in order to improve the performance. Resulting in increment of the power conversion efficiency (PCE) from 5% to 18% in OSCs and up to 25% in OSCs module. and molecular structures are some of the variables could
Photophysical and Electrochemical Properties, and Molecular
Dye-sensitized solar cells (DSSCs) based on organic dyes adsorbed on oxide semiconductor electrodes, such as TiO 2, ZnO, or NiO, which have emerged as a new
OVERVIEW OF BASIC STRUCTURE AND ADVANCEMENTS OF ORGANIC SOLAR CELLS
Futuristic Trends in Chemical, Material Science and Nanotechnology e-ISBN: 978-93-5747-901-1 IIP Series, Volume 3, Book 20, Part 1, Chapter 7 POSSIBLE STRUCTURE OF ORGANIC SOLAR CELL 1. Single Layer: A single-layer OSCs, also known as a
Molecular interaction induced dual fibrils towards organic solar cells
A guest-assisted molecular-organization approach for >17% efficiency organic solar cells using environmentally friendly solvents. Nat. Energy 6, 1045–1053 (2021).
The evolution of small molecular acceptors for organic solar cells
Compared with the inorganic solar cells, OSCs have the following distinct characteristics: a) Organic materials are light in weight and flexible [[36], [37], [38]]; b) The structure of organic materials can be easily and finely tuned; c) The device preparation process is simple and can be prepared by solution processing with low cost, such as screen printing,
Rational molecular and device design enables organic solar cells
A systematic design of light-absorbing molecules is challenging for them to satisfy multiple key requirements for efficient solar cell application.
Semitransparent organic solar cells: from
Semitransparent organic solar cells: from molecular design to structure–performance relationships. Kanupriya Khandelwal a, Subhayan Biswas a, Amaresh Mishra * b and Ganesh D.
Introduction to Organic Solar Cells
Structure of Organic Solar Cell. For organic solar cells based on polymer: fullerene bulk heterojunctions, the magnitude of JSC, VOC, and FF depends on parameters such as: light intensity,
Photophysical and Electrochemical Properties, and Molecular Structures
Dye-sensitized solar cells (DSSCs) based on organic dyes adsorbed on oxide semiconductor electrodes, such as TiO 2, ZnO, or NiO, which have emerged as a new generation of sustainable photovoltaic devices, have attracted much attention from chemists, physicists, and engineers because of enormous scientific interest in not only their construction and operational
Molecular Understanding of Organic Solar Cells: The Challenges
First, we provide an overview of the optical and electronic processes that take place in a solid-state organic solar cell, which we define as a cell in which the semiconducting
Single‐Crystalline Structure Assisted
With the emergence of a new nonfullerene acceptor (NFA) Y6 and its various derivatives, the power conversion efficiencies (PCE) of polymer solar cells (PSCs) have reached beyond 18%. [1-7] Likewise, the PCEs of the
On the role of asymmetric molecular geometry in high
Gao, W. et al. Asymmetric acceptors enabling organic solar cells to achieve an over 17% efficiency: conformation effects on regulating molecular properties and suppressing
Advantages, challenges and molecular design of different
This Review summarizes the types of materials used in the photoactive layer of solution-processed organic solar cells, discusses the advantages and disadvantages of combinations of different...
6 FAQs about [Molecular structure of organic solar cells]
What is an organic solar cell (OSC)?
An organic solar cell (OSC) or plastic solar cell is a type of photovoltaic that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, for light absorption and charge transport to produce electricity from sunlight by the photovoltaic effect.
What are organic photovoltaic cells?
Most organic photovoltaic cells are polymer solar cells. Fig. 2. Organic Photovoltaic manufactured by the company Solarmer. The molecules used in organic solar cells are solution-processable at high throughput and are cheap, resulting in low production costs to fabricate a large volume.
What is a typical organic solar cell device structure & representative photoactive materials?
Fig. 1: Typical organic solar cell device structure and representative photoactive materials used in organic solar cells. a, A typical organic solar cell (OSC) comprises an electron-transport later (ETL), hole-transport layer (HTL), transparent conducting layer (TCL) and a photoactive layer.
How are organic solar cells made?
Organic materials for photoactive layer Typically, organic solar cells are fabricated using a blend active layer composed by a p-type conjugated polymer used as donor component, and a n-type organic semiconductor as an acceptor component.
Why is molecular orientation important in organic solar cells?
The regulation principle of optimizing molecular orientation is revealed. The morphological characteristics of the active layer in organic solar cells (OSCs), encompassing phase separation structure, domain sizes, crystallinity and molecular orientation play a pivotal role in governing the photoelectric conversion processes.
Which molecule is used in solution-processed organic solar cells?
Zhou, J. et al. Small molecules based on benzo [1,2-b:4,5-b′]dithiophene unit for high-performance solution-processed organic solar cells. J. Am. Chem. Soc. 134, 16345–16351 (2012). Kan, B. et al. Solution-processed organic solar cells based on dialkylthiol-substituted benzodithiophene unit with efficiency near 10%. J. Am. Chem.
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