Effect of the Side Chain Functionality of the Conjugated Polyelectrolytes as a Cathode Interlayer Material on the Photovoltaic Performances

Salma, Sabrina Aufar; Kim, Joo Hyun

doi:10.1007/s13233-022-0011-2

Cited by 19 publications

(4 citation statements)

References 63 publications

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“…The value of α is associated with the bimolecular recombination in the photoactive layer and is close to 1, designating a low probability of bimolecular recombination. 48,49 The α values of PM6:BTP-eC11, PBTPttBD-25:BTP-eC11, PBTPttBD-50:BTP-eC11, PBTPttBD-75:BTP-eC11, and PBTPttBD-100:BTP-eC11-based PSCs were 0.98, 0.98, 0.97, 0.96, and 0.95, respectively, indicating that all PSCs exhibited negligible bimolecular recombination.…”

Section: Polymermentioning

confidence: 99%

Achieving an excellent efficiency of 11.57% in a polymer solar cell submodule with a 55 cm² active area using 1D/2A terpolymers and environmentally friendly nonhalogenated solvents

Jung,

Kim,

Park

et al. 2023

EcoMat

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The transition of polymer solar cells (PSCs) from laboratory‐scale unit cells to industrial‐scale modules requires the development of new p‐type polymers for high‐performance large‐area PSC modules based on environmentally friendly processes. Herein, a series of 1D/2A terpolymers (PBTPttBD) composed of benzo[1,2‐b:4,5‐b’]dithiophene (BDT‐F), thieno[3,4‐c]pyrrole‐4,6(5H)‐dione (TPD‐TT), and benzo‐[1,2‐c:4,5‐c’]dithiophene‐4,8‐dione (BDD) is synthesized for nonhalogenated solvent processed PSC submodules. The optical, electrochemical, charge‐transport, and nano‐morphological properties of the PBTPttBD terpolymers are modulated by adjusting the molar ratio of the TPD‐TT and BDD components. PBTPttBD‐75:BTP‐eC11‐based PSC submodules, processed with o‐xylene, achieve a notable PCE of 11.57% over a 55 cm2 active area. This PCE value is among the highest reported using a nonhalogenated solvent over a 55 cm2 active area module. The optimized PSC submodule exhibits minimal cell‐to‐module loss, which can be attributed to the optimized crystallinity of the PBTPttBD‐75:BTP‐eC11 photoactive layer system and favorable film formation kinetics.image

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Section: Polymermentioning

confidence: 99%

Achieving an excellent efficiency of 11.57% in a polymer solar cell submodule with a 55 cm² active area using 1D/2A terpolymers and environmentally friendly nonhalogenated solvents

Jung,

Kim,

Park

et al. 2023

EcoMat

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“…Conjugated polyelectrolytes (CPEs) exhibit an intriguing structure featuring a π-delocalized main backbone along with ionic side chains, rendering them amphiphilic. − This unique configuration not only imparts intrinsic semiconducting properties, stemming from the π-conjugated backbone but also grants them excellent wetting characteristics and compatibility with hydrophilic perovskites. Notably, CPEs possess pH-neutrality, ionic defect passivation capabilities, and facile tunability of their optical and electrical properties.…”

Section: Introductionmentioning

confidence: 99%

Anionic Conjugated Polyelectrolyte as a Semiconducting Additive for Efficient and Stable Perovskite Solar Cells

Park,

Noh,

et al. 2023

ACS Appl. Mater. Interfaces

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Perovskite defects are a major hurdle in the efficiency and stability of perovskite solar cells (PSCs). While various defect passivation materials have been explored, most are insulators that hinder charge transport. This study investigates the potential of two different π-conjugated polyelectrolytes (CPEs), MPS2-TEA and PCPDTBT2-TMA, as semiconducting additives in PSCs. The CPEs differ in electrical conductivity, offering a unique approach to bridge defect mitigation and charge carrier transport. Unlike previous uses of CPEs mainly as interlayers or charge transport layers, we explore their direct effect on defect passivation within a perovskite layer. Secondary ion microscopy reveals the even distribution of CPEs within the perovskite layer and their efficient defect passivation potential is studied through various spectroscopic analyses. Comparing MPS2-TEA and PCPDTBT2-TMA, we find MPS2-TEA to be superior in defect passivation. The highly conductive nature of PCPDTBT2-TMA due to self-doping diminishes its defect passivation ability. The negative sulfonate groups in the side chains of PCPDTBT2-TMA stabilize polarons, reducing defect passivation capability. Finally, the PSCs with MPS2-TEA achieve remarkable power conversion efficiencies (PCEs) of 22.7% for 0.135 cm 2 and 20.0% for large-area (1 cm 2 ) cells. Furthermore, the device with MPS2-TEA maintained over 87.3% of initial PCE after 960 h at continuous 1-sun illumination and 89% of PCE after 850 h at 85 °C in a nitrogen glovebox without encapsulation. This highlights CPEs as promising defect passivation additives, unlocking potential for improved efficiency and stability not only in PSCs but also in wider applications.

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“…Polymer solar cells (PSCs) are increasingly acknowledged as a potential renewable energy technology, owing to their light weight, cost-effectiveness, and flexibility [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. As a result, the power conversion efficiency (PCE) of PSCs has increased by more than 20% [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Polyelectrolytes Based on Naphthalene Diimide with Different Counteranions for Cathode Interlayers in Polymer Solar Cells

Nasrun,

Son,

Kim

2023

IJMS

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We synthesized novel polyelectrolytes based on naphthalene diimide with quaternary amine featuring hydroxyl groups at the side chain, along with different counteranions (PF-NDIN-Br-OH and PF-NDIN-I-OH) for polymer solar cell (PSC) application as the interlayer. The polyelectrolytes establish a beneficial interface dipole through the ionic moieties and synergistic effects arising from the hydroxyl groups located at the side chain. Incorporating polyelectrolytes as the cathode interlayer resulted in an enhancement of the power conversion efficiency (PCE). The PCE of the device with PF-NDIN-Br-OH increased from 8.96% to 9.51% compared to the ZnO-only device. The best PCE was obtained with the device based on PF-NDIN-I-OH, up to 9.59% resulting from the Jsc enhancement. This outcome implies a correlation between the performance of the device and the synergistic effects observed in polyelectrolytes containing hydroxyl groups in the side chain, along with larger anions when employed in PSCs.

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Effect of the Side Chain Functionality of the Conjugated Polyelectrolytes as a Cathode Interlayer Material on the Photovoltaic Performances

Cited by 19 publications

References 63 publications

Achieving an excellent efficiency of 11.57% in a polymer solar cell submodule with a 55 cm² active area using 1D/2A terpolymers and environmentally friendly nonhalogenated solvents

Achieving an excellent efficiency of 11.57% in a polymer solar cell submodule with a 55 cm² active area using 1D/2A terpolymers and environmentally friendly nonhalogenated solvents

Anionic Conjugated Polyelectrolyte as a Semiconducting Additive for Efficient and Stable Perovskite Solar Cells

Novel Polyelectrolytes Based on Naphthalene Diimide with Different Counteranions for Cathode Interlayers in Polymer Solar Cells

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Effect of the Side Chain Functionality of the Conjugated Polyelectrolytes as a Cathode Interlayer Material on the Photovoltaic Performances

Cited by 19 publications

References 63 publications

Achieving an excellent efficiency of 11.57% in a polymer solar cell submodule with a 55 cm2 active area using 1D/2A terpolymers and environmentally friendly nonhalogenated solvents

Achieving an excellent efficiency of 11.57% in a polymer solar cell submodule with a 55 cm2 active area using 1D/2A terpolymers and environmentally friendly nonhalogenated solvents

Anionic Conjugated Polyelectrolyte as a Semiconducting Additive for Efficient and Stable Perovskite Solar Cells

Novel Polyelectrolytes Based on Naphthalene Diimide with Different Counteranions for Cathode Interlayers in Polymer Solar Cells

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Product

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Achieving an excellent efficiency of 11.57% in a polymer solar cell submodule with a 55 cm² active area using 1D/2A terpolymers and environmentally friendly nonhalogenated solvents

Achieving an excellent efficiency of 11.57% in a polymer solar cell submodule with a 55 cm² active area using 1D/2A terpolymers and environmentally friendly nonhalogenated solvents