An Innovative Anode Interface Combination for Perovskite Solar Cells with Improved Efficiency, Stability, and Reproducibility

Meng, Wei; Xu, Jianguo; Dong, Lirong; Zhang, Jiyun; Xie, Zhiqiang; Luo, Junsheng; Zhao, Biying; Zhang, Kaicheng; Osvet, Andres; Heumüller, Thomas; Forberich, Karen; Halik, Marcus; Li, Ning; Brabec, Christoph J.

doi:10.1002/solr.202200378

Cited by 4 publications

(6 citation statements)

References 55 publications

(80 reference statements)

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“…Several materials were reported as buffer layers between perovskite and P3HT HTL. [8,115,[122][123][124][125] Organic compounds such as PolyTPD, P3CT-BN, and BTCIC-4Cl were inserted as buffer layers at the perovskite/P3HT interface. [8,115,123] These inserted layers were able to coordinate with the uncoordinated Pb 2þ atoms at the perovskite surface, which increased hole extraction and decreased interfacial trap states and charge-carrier recombination, with the highest recorded performance attributed to P3CT-BN-based devices, achieving a 19.23% PCE while retaining 80% of its initial PCE under 40% relative humidity for 1800 h. [115] Another combination was reported based on P3HT NPs and trioctylphosphine oxide (TOPO) interlayer for carbon electrodebased PSCs.…”

Section: Other Passivating Materialsmentioning

confidence: 99%

“…The introduced combination preserved a significantly improved performance of 18.4% PCE with thermal stability under thermal stress for 1000 h, while with Au electrode recorded a high 19.8% PCE. [124] Further improvements were presented by Gu et al by introducing 1-hexyl-2,5-dimethyl-1Hpyrrole-3-carboxylic acid (HPCA) interlayer with overall improved performance achieving a 20.8% PCE and showing significant stability under a relative humidity of 60%, heat at 80 °C, or under continuous light illumination. [125] Peng et al developed a double-side passivation approach incorporating ultrathin PMMA:PC 61 BM layer at the perovskite/ETL interface and PMMA ultrathin buffer at the perovskite/P3HT:copper phthalocyanine HTL interface.…”

Section: Other Passivating Materialsmentioning

confidence: 99%

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Recent Advances in Poly(3‐hexylthiophene) and Its Applications in Perovskite Solar Cells

Kassem,

Salehi,

Kahrizi

2024

Energy Tech

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2,2',7,7'‐Tetrakis(N,N‐di‐p‐methoxyphenylamine)‐9,9'‐spirobifluorene (Spiro‐OMeTAD) is considered the backbone of high performance in perovskite solar cells (PSCs) with the highest recorded power conversion efficiency near 26%. Devices with Spiro‐OMeTAD as a hole‐transport material (HTM) inherit very low stability due to the use of ionic‐based and unstable hygroscopic dopants to boost their hole mobility, hindering their stability. Poly(3‐hexylthiophene) (P3HT) is considered one of the promising HTM candidates, due to its formidable physical and electronic properties including higher hole mobility and thermal and moisture‐resisting nature. Despite these advantages, pristine P3HT‐based PSCs suffer low photovoltaic performances owing to unmatched perovskite/hole‐transport layer (HTL) interface and low mobility compared to doped HTMs. Today, studies are focusing on how to manage the interface between perovskite and P3HT and improve its hole mobility to achieve significant performance records in n–i–p PSCs. Herein, the advances of P3HT HTL are reviewed and light is shed on its different related approaches. Doping strategies and structural and molecular modifications to boost the hole mobility are reviewed. Interface engineering approaches to enhance the contact between perovskite and P3HT are discussed in detail. Moreover, incorporation in future PSC applications is investigated. Finally, a summary and a short outlook are provided.

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Section: Other Passivating Materialsmentioning

confidence: 99%

Section: Other Passivating Materialsmentioning

confidence: 99%

Recent Advances in Poly(3‐hexylthiophene) and Its Applications in Perovskite Solar Cells

Kassem,

Salehi,

Kahrizi

2024

Energy Tech

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“…[ 29,30 ] And the PCE of PC‐PSCs with P3HT as HTL has exceeded 18.0%. [ 28 ] Although great progress has been made, further investigation is still required for preparing high‐efficiency and large‐area PC‐PSCs comparing the metal electrode‐based counterparts.…”

Section: Introductionmentioning

confidence: 99%

“…[24] Besides, the solvents in carbon paste may lead to the dissolution of the spiro-OMeTAD layer underneath the carbon electrode. To overcome these problems, some novel dopantfree HTL has been successfully employed in PC-PSCs, such as CuSCN [25] CuPC, [26] SnPC, [27] poly(3-hexylthiophene) (P3HT), [28] etc. Among them, low-cost and stable P3HT exhibits higher hole mobility, which is favorable to prepare high-efficiency PC-PSCs.…”

Section: Introductionmentioning

confidence: 99%

Organic Bromide Salts Interface Modification for High‐Efficiency Perovskite Solar Cells with Printed Carbon Electrode

et al. 2023

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Perovskite solar cells (PSCs) using carbon as the counter electrode fabricated through a low‐temperature full solution‐process method can significantly simplify the preparation process and reduce production cost. Herein, a high‐performance PSC is presented with printed carbon electrode and dopant‐free poly(3‐hexylthiophene) (P3HT) is employed as hole transport materials. Different organic bromide salts are employed to modify the perovskite/P3HT interface to further enhance the performance. As a result, methylammonium bromide (MABr) modification significantly enhances the device open‐voltage (Voc) and fill factor (FF) by reducing interface defects and facilitates charge transport. A champion power conversion efficiency (PCE) of 19.22% (Voc of 1.118 V, FF of 0.765, and short‐circuit current of 22.48 mA cm−2) is achieved with MABr modification. The unencapsulated devices maintain 96% of the initial efficiency after storage for 3600 h and 88% after thermal treatment at 70 °C for 1200 h. Additionally, perovskite solar modules are also prepared based on printing and interface passivation route with PCE reaches 13.20%. These results represent an important progress in the enhancement of device PCE and up‐scaling of PSCs with cost‐effective, stable, and printed carbon electrode.

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“…As shown in Figure b, uniform thin films were produced by solution drop-casting via an in-house developed robot-based platform . The automated platform has previously been employed in our laboratory to successfully synthesize and characterize metal-halide perovskites with high precision, reproducibility, and reliability. − …”

mentioning

confidence: 99%

Revealing the Crystallization and Thermal-Induced Phase Evolution in Aromatic-Based Quasi-2D Perovskites Using a Robot-Based Platform

Zhang,

Wu,

Zhao

et al. 2023

ACS Energy Lett.

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Introducing large organic cations to form reduced-dimensional (quasi-2D) perovskites has proven to be effective in stabilizing three-dimensional perovskites. In this study, we synthesized 28 Ruddlesden–Popper-type quasi-2D perovskites using four aromatic-based cations (phenylmethylammonium (PMA), phenethylammonium (PEA), phenylpropylammonium (PPA), and phenylbutanammonium (PBA)) and systematically investigated their optoelectronic and structural properties and thermal stability. A counterintuitive finding that longer-chain PPA-based films exhibited relatively poorer stability compared to films with shorter-chain cations has been found. This instability in PPA-based samples is attributed to significant lattice distortion and a mismatched phase between face-sharing trimers, causing intense configurational strain. On the other hand, PBA-containing films maintained robust structural stability due to distinctive crystallization kinetics and a gradual phase-transformation process (from larger-n to lower-n phases) induced by a stronger steric-hindrance effect. Our study sheds light on the complex impact of aromatic-based cations on optoelectronic properties and stability of perovskites, providing guidelines for the rational compositional design engineering of highly stable perovskite materials.

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An Innovative Anode Interface Combination for Perovskite Solar Cells with Improved Efficiency, Stability, and Reproducibility

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/solr.202200378.

Cited by 4 publications

References 55 publications

Recent Advances in Poly(3‐hexylthiophene) and Its Applications in Perovskite Solar Cells

Recent Advances in Poly(3‐hexylthiophene) and Its Applications in Perovskite Solar Cells

Organic Bromide Salts Interface Modification for High‐Efficiency Perovskite Solar Cells with Printed Carbon Electrode

Revealing the Crystallization and Thermal-Induced Phase Evolution in Aromatic-Based Quasi-2D Perovskites Using a Robot-Based Platform

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