Relationship between the <i>V</i><sub>OC</sub> Tuning Effect and the Interface Activation Energy Due to the Third Component Concentration in Ternary Organic Solar Cells

Castro-Chacón, A.; Castro-Carranza, A.; Amargós-Reyes, Olivia; Maldonado, José‐Luis; Hernández-Cristóbal, Orlando; Guzmán-Caballero, D.E.; Mejía, I.; Vazquez, A.; Gutowski, J.; Nolasco, J. C.

doi:10.1021/acsaem.1c03888

Cited by 3 publications

(2 citation statements)

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“…Additionally, precisely controlling the concentration of the third component in the active-layer blend is crucial for achieving the desired effects. [37][38][39] Furthermore, physically added third components can increase the complexity of the nanoscale morphology of the blend and negatively affect phase stability over time, resulting in a reduction in the long-term stability of the device. [40][41][42][43] Incorporating a third component into the existing structures of host materials through chemical bonding is a promising but challenging strategy for overcoming these issues.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, precisely controlling the concentration of the third component in the active‐layer blend is crucial for achieving the desired effects. [ 37–39 ] Furthermore, physically added third components can increase the complexity of the nanoscale morphology of the blend and negatively affect phase stability over time, resulting in a reduction in the long‐term stability of the device. [ 40–43 ]…”

Section: Introductionmentioning

confidence: 99%

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Complementary Absorption Pseudo‐Ternary Blend Containing a Y‐Series Block Copolymer Acceptor for Indoor and Outdoor All‐Polymer Photovoltaics

Chau,

Park,

Park

et al. 2023

Solar RRL

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All‐polymer photovoltaics (all‐PPVs) that operate under both indoor and outdoor lighting conditions require active layers with appropriately adjusted optical‐absorption ranges. However, the optical absorption of a conventional donor–acceptor binary blend is restricted to the combined absorption bands of its components. Herein, a new conjugated block copolymer (CBC) acceptor, b‐PYT, is designed by integrating polymer acceptor blocks of wide and narrow bandgaps in a single structure. Such combination results in the wide absorption range (550–850 nm) of b‐PYT that matches the emission of both artificial and solar light. The b‐PYT CBC acceptor is more crystalline than the corresponding random terpolymer, r‐PYT, owing to improved interactions between its macromolecular acceptor units. Despite exhibiting slightly inferior outdoor performance compared to that of devices using the homopolymer BTTP‐T, the PM6:b‐PYT‐based devices deliver superior power conversion efficiency (PCE) under indoor light‐emitting diode (LED) light owing to better matched absorption and emission spectra of b‐PYT and a cold white LED, respectively. Additionally, it is worth highlighting that PM6:b‐PYT‐based all‐PPVs can maintain approximately 87% of the initial PCE even after 600 min of thermal aging at 150 °C, which demonstrates the superior thermal stability compared with those of all‐PPVs that use traditional binary active layers.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Complementary Absorption Pseudo‐Ternary Blend Containing a Y‐Series Block Copolymer Acceptor for Indoor and Outdoor All‐Polymer Photovoltaics

Chau,

Park,

Park

et al. 2023

Solar RRL

View full text Add to dashboard Cite

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Multicomponent organic blend systems: A review of quaternary organic photovoltaics

N'Konou,

Kim,

Doumon

2024

Carbon Energy

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Embedding a third and/or fourth component into a binary blend active layer of organic photovoltaics (OPVs) is a promising approach to achieve high‐performance photovoltaic cells and modules. This multicomponent strategy favors absorption broadening via additional components. Quaternary OPV (QOPV) blends have four components in three possible configurations: (i) a donor and three acceptors, (ii) two donors and two acceptors, or (iii) three donors and an acceptor. Although quaternary systems have only been relatively recently studied compared to other systems in OPVs, leveraging the synergistic effects of the four components leads to record power conversion efficiencies, currently approaching 20%. QOPVs provide ample material choices for compatibility and channels for charge transfer mechanisms, possibly leading to optimized morphology and orientation. Reviewing recent progress in advancing QOPVs is essential for understanding their contribution to the OPV field. The review mainly discusses research progress in QOPVs with a keen interest in their various configurations, semitransparency, and outdoor and indoor applications. It describes the not‐well‐understood QOPV's general working mechanism. This review explores high‐performance QOPVs based on the fourth component's contribution as a donor, acceptor, or dye molecule and beyond in photovoltaic applications. Finally, there is a discussion around QOPV's outlook and projected future research directions in this field. This review intends to provide an overview of the quaternary systems approach to OPVs and inform current and future researchers on investigating the full spectrum of OPVs.

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Extraction of charge transfer states dissociation probability and localised states parameters for PTB7-Th:PC71BM photovoltaic cells: using experimental J-V curves

Amir,

Singh

2024

Eng. Res. Express

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The efficient separation of bounded electron–hole pairs (excitons) through charge transfer states (CTS) is a fundamental process in organic photovoltaic cells (OPVs). Introduction of CTS dissociation probability CTS dis factor in the generation rate equations is a simple and effective method to estimate the number of dissociated CTS. In the present study, for a specified recombination coefficient (k), first we obtained the values of CTS dis and subsequently determined the localized states parameters, i.e., electron/hole trap densities, tail slopes, and trap cross sections within the active layer (PTB7-Th:PC71BM). In order to extract these values, the experimental data of dark/light J-V curves and the density of charge carriers at the electrodes are fitted using the downhill simplex algorithm. An iterative approach is used to obtain the converged values. Furthermore, we explored the effect of compositional variation on CTS dis and obtained values are 80%, 89%, 71%, and 57% for weight ratios of 1:1, 1:1.5, 1:2, and 1:2.5 respectively. All calculations and simulations are performed using OghmaNano.

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Relationship between the V_OC Tuning Effect and the Interface Activation Energy Due to the Third Component Concentration in Ternary Organic Solar Cells

Cited by 3 publications

References 55 publications

Complementary Absorption Pseudo‐Ternary Blend Containing a Y‐Series Block Copolymer Acceptor for Indoor and Outdoor All‐Polymer Photovoltaics

Complementary Absorption Pseudo‐Ternary Blend Containing a Y‐Series Block Copolymer Acceptor for Indoor and Outdoor All‐Polymer Photovoltaics

Multicomponent organic blend systems: A review of quaternary organic photovoltaics

Extraction of charge transfer states dissociation probability and localised states parameters for PTB7-Th:PC71BM photovoltaic cells: using experimental J-V curves

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Relationship between the VOC Tuning Effect and the Interface Activation Energy Due to the Third Component Concentration in Ternary Organic Solar Cells

Cited by 3 publications

References 55 publications

Complementary Absorption Pseudo‐Ternary Blend Containing a Y‐Series Block Copolymer Acceptor for Indoor and Outdoor All‐Polymer Photovoltaics

Complementary Absorption Pseudo‐Ternary Blend Containing a Y‐Series Block Copolymer Acceptor for Indoor and Outdoor All‐Polymer Photovoltaics

Multicomponent organic blend systems: A review of quaternary organic photovoltaics

Extraction of charge transfer states dissociation probability and localised states parameters for PTB7-Th:PC71BM photovoltaic cells: using experimental J-V curves

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Product

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Relationship between the V_OC Tuning Effect and the Interface Activation Energy Due to the Third Component Concentration in Ternary Organic Solar Cells