The intense developments concerning solar energy have boosted the investigations to optimize the efficiency and stability of emerging photovoltaic technology, such as dye-sensitized solar cells, organic solar cells (OSCs), perovskite solar cells, quantum dot solar cells, and so on, of which OSCs are one of the most promising technologies [8,9,10,11,12,13,14].
Provided by the Springer Nature SharedIt content-sharing initiative In organic solar cells, the charge-transfer (CT) electronic states that form at the interface between the electron-donor (D) and electron-acceptor (A) materials have a crucial role in exciton-dissociation, charge-separation and charge-recombination processes.
The review provides an outlook of organic charge transport materials to enhance device efficiency and stability in terms of materials, engineering, and architecture for the realization of the commercialization of perovskite solar cells. 1. Introduction
See all authors Efficient exciton diffusion and charge transport play a vital role in advancing the power conversion efficiency (PCE) of organic solar cells (OSCs).
Fig. 1: Charge-carrier formation in organic solar cells. Electronic-state diagram illustrating the processes involved in photoinduced charge-carrier formation in an organic solar cell. LE is the lowest-energy local-exciton singlet or triplet excited state (mainly localized on either the electron-donor (D) or electron-acceptor (A) component).
For charge transport to take place in organic solids, there must be a charge on the molecular unit. This may either be an additional electron that is accommodated in an antibonding orbital, or one that is removed from bonding orbital. The molecule is then no longer in the ground state but rather in a charged excited state.
This reveals a transport mechanism where mobile charge carriers are temporarily captured in a localized state, akin to multiple capture and release processes, which aligns with the applicable conditions for the PF model , . Additionally, the arrangement of transport pathways also governs carrier transport modes.
The intense developments concerning solar energy have boosted the investigations to optimize the efficiency and stability of emerging photovoltaic technology, such as dye-sensitized solar cells, organic solar cells (OSCs), perovskite solar cells, quantum dot solar cells, and so on, of which OSCs are one of the most promising technologies [8,9,10,11,12,13,14].
We proposed a simple yet effective principle to accurately extract charge carrier mobility values using the standard space-charge-limited current (SCLC) measurement, while critically assessing theoretical and experimental deficiencies through the drift-diffusion analysis.
organic solar cells through three-dimensional charge transport Fan et al. report the introduction of a liquid crystal donor into a typical non-fullerene blending system to significantly improve their crystallinity and molecular ordering, enabling an efficient three-dimensional charge transport in …
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 charge transport to produce electricity from sunlight by the photovoltaic effect. Most organic photovoltaic cells are polymer solar cells. Fig. 2. Organic ...
Abstract The charge carrier dynamics in organic solar cells and organic–inorganic hybrid metal halide perovskite solar cells, two leading technologies in thin-film photovoltaics, are compared. The ... Skip to Article Content; Skip to Article Information; Search within. Search term. Advanced Search Citation Search. Search term. Advanced Search Citation Search. Login / Register. …
Efficient exciton diffusion and charge transport play a vital role in advancing the power conversion efficiency (PCE) of organic solar cells (OSCs). Here, a facile strategy is presented to simultaneously enhance exciton/charge transport of the widely studied PM6:Y6-based OSCs by employing highly emissive trans -bis(dimesitylboron ...
2 · Perovskite/organic tandem solar cells (PO-TSCs) have recently attracted increasing attention due to their high efficiency and excellent stability. The interconnecting layer (ICL) is …
Lee, D. et al. Charge recycling mechanism through a triplet charge-transfer state in ternary-blend organic solar cells containing a nonfullerene acceptor. ACS Energy Lett 6, 2610–2618 (2021).
This study investigates the crucial role of charge transport layers in enhancing the performance of inverted organic photovoltaic cells (OPVs) through advanced numerical …
Molecular design and charge transport dynamics play an important role in achieving highly efficient organic solar cells (OSCs). In this work, non-fullerene acceptor Y6, …
Molecular design and charge transport dynamics play an important role in achieving highly efficient organic solar cells (OSCs). In this work, non-fullerene acceptor Y6, its alkyl chain modified derivative N3 and halogen-replaced derivative BTP-BO-4Cl are selected to fabricate OSCs. The OSCs obtain a high power conversion efficiency ...
2 · Nonfullerene acceptors are critical in advancing the performance of organic solar cells. However, unfavorable morphology and low photon-to-electron conversion in the acceptor …
2 · Perovskite/organic tandem solar cells (PO-TSCs) have recently attracted increasing attention due to their high efficiency and excellent stability. The interconnecting layer (ICL) is of great importance for the performance of PO-TSCs. The charge transport layer (CTL) and the charge recombination layer (CRL) that form the ICL should be carefully designed to enhance …
Organic solar cells combine both p-type and n-type semiconductors with the p-type material showing higher electron affinity and ionization potential than the n-type. In this …
Film-depth-dependent crystallinity for light transmission and charge transport in semitransparent organic solar cells ... deteriorating the charge transport and degrading the photovoltaic performance. Upon optimizing the film-depth-dependent optical and electronic properties by manipulating the crystallinity and its spatial distribution, a high power conversion efficiency of …
Fan et al. report the introduction of a liquid crystal donor into a typical non-fullerene blending system to significantly improve their crystallinity and molecular ordering, enabling an efficient three-dimensional charge transport in …
Efficient exciton diffusion and charge transport play a vital role in advancing the power conversion efficiency (PCE) of organic solar cells (OSCs). Here, a facile strategy is presented to simultaneously enhance exciton/charge …
This study investigates the crucial role of charge transport layers in enhancing the performance of inverted organic photovoltaic cells (OPVs) through advanced numerical simulations using OghmaNano software. OPVs offer distinct advantages, including lightweight, flexibility, and potential cost-effectiveness compared to traditional silicon-based ...
Especially an impressive efficiency over 10% has been achieved in dilute donor solar cells with 10 wt % PM6 enabled by efficient charge generation, electron/hole transport, slow charge recombination, and field …
Charge transporting materials are essential for fabricating stable and efficient perovskite solar cells. The high-temperature processing, surface defects, and low mobility are common issues in inorganic charge transport materials which can hinder the fabrication of low-cost, efficient, and stable perovskite solar cells.
We proposed a simple yet effective principle to accurately extract charge carrier mobility values using the standard space-charge-limited current (SCLC) measurement, while …
Especially an impressive efficiency over 10% has been achieved in dilute donor solar cells with 10 wt % PM6 enabled by efficient charge generation, electron/hole transport, slow charge recombination, and field-insensitive extraction. This raises the question about the origin of efficient hole transport in such dilute donor structure. By ...
We investigate dipolar donor materials mixed with a ${mathrm{C}}_{70}$ acceptor in an organic photovoltaic (OPV) cell. Dipolar donors that have donor-acceptor-acceptor (d-a-aensuremath{''}) structure result in high conductivity pathways due to close coupling between neighboring molecules in the mixed films. We analyze the charge transfer properties …
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 ...
2 · Nonfullerene acceptors are critical in advancing the performance of organic solar cells. However, unfavorable morphology and low photon-to-electron conversion in the acceptor range continue to limit the photocurrent generation and overall device performance. Herein, benzoic anhydride, a low-cost polar molecule with excellent synergistic properties, is introduced in …
Organic solar cells combine both p-type and n-type semiconductors with the p-type material showing higher electron affinity and ionization potential than the n-type. In this regard, the photoexcited exciton needs to be dissociated at …
Zhu, L. et al. Efficient organic solar cell with 16.88% efficiency enabled by refined acceptor crystallization and morphology with improved charge transfer and transport properties. Adv. Energy ...
In organic solar cells, the charge-transfer (CT) electronic states that form at the interface between the electron-donor (D) and electron-acceptor (A) materials have a crucial role in...
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