Wettability Improvement of a Carbazole-Based Hole-Selective Monolayer for Reproducible Perovskite Solar Cells

Al‐Ashouri, Amran; Marčinskas, Mantas; Kasparavičius, Ernestas; Malinauskas, Tadas; Palmstrom, Axel F.; Getautis, Vytautas; Albrecht, Steve; McGehee, Michael D.; Magomedov, Artiom

doi:10.1021/acsenergylett.2c02629

Cited by 52 publications

(51 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…First, the device fabrication was optimized. The self-assembled monolayer (SAM) Me-4PACz {[4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid} was used as HTL for the top cell, together with a wetting-improving additive ( 7 , 31 ). In contrast to our previous work ( 7 ), in this study this HTL mainly improved median V OC values from ~1.92 V (2PACz) to 1.94 V (Me-4PACz) (fig.…”

Section: Perovskite-silicon Tandem Solar Cellsmentioning

confidence: 99%

Interface engineering for high-performance, triple-halide perovskite–silicon tandem solar cells

Mariotti,

Köhnen,

Scheler

et al. 2023

Science

Self Cite

185

View full text Add to dashboard Cite

Improved stability and efficiency of two-terminal monolithic perovskite-silicon tandem solar cells will require reductions in recombination losses. By combining a triple-halide perovskite (1.68 electron volt bandgap) with a piperazinium iodide interfacial modification, we improved the band alignment, reduced nonradiative recombination losses, and enhanced charge extraction at the electron-selective contact. Solar cells showed open-circuit voltages of up to 1.28 volts in p-i-n single junctions and 2.00 volts in perovskite-silicon tandem solar cells. The tandem cells achieve certified power conversion efficiencies of up to 32.5%.

show abstract

Section: Perovskite-silicon Tandem Solar Cellsmentioning

confidence: 99%

Interface engineering for high-performance, triple-halide perovskite–silicon tandem solar cells

Mariotti,

Köhnen,

Scheler

et al. 2023

Science

Self Cite

185

View full text Add to dashboard Cite

show abstract

“…48,49 Recently, various solutions have been proposed to this problem. Improved wettability was demonstrated by texturing the Si surface, 49 by combining Me-4PACz with 1,6-hexylenediphosphonic acid, 48 and by incorporating N-methyl-2-pyrrolidone (NMP) in the perovskite precursor solvent system as an addition to dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO). 50 The use of Al2O3 nanoplate islands was demonstrated to improve the PCE of inverted perovskite devices, in which case a partial contact mechanism, similar to that used in passivated emitter and rear contact (PERC) Si cells, was described.…”

Section: Sio2 Nanoparticles For Enhanced Wettability and Perovskite F...mentioning

confidence: 99%

High-efficiency (>30%) monolithic perovskite-Si tandem solar cells with flat front-side wafers

Türkay

Artuk

Chin³

et al. 2023

Preprint

View full text Add to dashboard Cite

Perovskite-Si tandem solar cells are the most prominent contenders to succeed commercial single-junction Si cells that dominate the market today. Yet, to justify the added cost of inserting a perovskite cell on top of Si, the tandem devices should first exhibit sufficiently high power conversion efficiencies (PCEs). Here, we present two key developments with a synergetic effect that boost the PCEs of our tandem devices with front-side flat Si wafers - the use of 2,3,4,5,6-pentafluorobenzylphosphonic acid (pFBPA) in the perovskite precursor ink that suppresses non-radiative recombination near the perovskite/C60 interface, and the use of SiO2 nanoparticles under the perovskite film that suppresses the enhanced number of pinholes and shunts introduced by pFBPA, while also allowing the use of [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid as a hole transport layer. Integrating a perovskite cell featuring these developments with a Si cell, reproducible PCEs of 30±1% and a certified maximum of 30.9% are achieved for an active area of 1cm2.

show abstract

“…[ 5 ] Furthermore, due to the strong hydrophobicity, it is hard to fabricate a uniform and pinhole‐free perovskite film directly on the surface of PTAA and SAM, [2a,6] which limits the practical fabrication of large‐area devices. [ 7 ] Inserted layers [ 8 ] and dopants [ 9 ] are always needed to enhance their surface wettability. Therefore, designing novel HTMs with low cost and excellent surface wettability is still an urgent problem for the industrial fabrication of inverted PSCs.…”

Section: Introductionmentioning

confidence: 99%

Regulating the Solvent Resistance of Hole Transport Layer for High‐Performance Inverted Perovskite Solar Cells

Chen

Yang

et al. 2023

Solar RRL

View full text Add to dashboard Cite

The hole transport materials (HTMs) play important roles in transporting holes and regulating perovskite crystallization in inverted perovskite solar cells (PSCs). Concerning the solubility of small‐molecule‐type HTMs in perovskite precursor solution during fabrication, the strategies including tailoring and crosslinking have been developed. However, how these strategies will influence the solvent resistance of the resultant hole transport layers (HTLs) and the corresponding device performance have not been systematically evaluated. Herein, upon incorporating tailoring and crosslinking groups into diazafluorene backbones, AFL‐COOH and AFL‐ENE are designed. Compared to the control HTM (AFL‐3) with poor solvent resistance and AFL‐COOH, the best solvent resistance of crosslinked AFL‐ENE (AFL‐ENE‐CL) film leads to an HTL with the highest quality covered on electrode, which thus results in the lowest trap density, best surface contact, and hole extraction for devices involving the AFL‐ENE‐CL type HTL and the best power conversion efficiency of 20.8% (20.0% for AFL‐COOH, 18.1% for AFL‐3). Furthermore, high reproducibility and stabilities also realize for the AFL‐ENE‐CL‐based PSC.

show abstract

Wettability Improvement of a Carbazole-Based Hole-Selective Monolayer for Reproducible Perovskite Solar Cells

Abstract: The wettability issue associated with the Me-4PACz hole-selective monolayer is solved by the introduction of the second component to the precursor solution. This results in a similar performance while simultaneously significantly improving the yield of the devices.

Cited by 52 publications

References 10 publications

Interface engineering for high-performance, triple-halide perovskite–silicon tandem solar cells

Interface engineering for high-performance, triple-halide perovskite–silicon tandem solar cells

High-efficiency (>30%) monolithic perovskite-Si tandem solar cells with flat front-side wafers

Regulating the Solvent Resistance of Hole Transport Layer for High‐Performance Inverted Perovskite Solar Cells

Contact Info

Product

Resources

About

Wettability Improvement of a Carbazole-Based Hole-Selective Monolayer for Reproducible Perovskite Solar Cells

Abstract: The wettability issue associated with the Me-4PACz hole-selective monolayer is solved by the introduction of the second component to the precursor solution. This results in a similar performance while simultaneously significantly improving the yield of the devices.

Cited by 52 publications

References 10 publications

Interface engineering for high-performance, triple-halide perovskite–silicon tandem solar cells

Interface engineering for high-performance, triple-halide perovskite–silicon tandem solar cells

High-efficiency (&gt;30%) monolithic perovskite-Si tandem solar cells with flat front-side wafers

Regulating the Solvent Resistance of Hole Transport Layer for High‐Performance Inverted Perovskite Solar Cells

Contact Info

Product

Resources

About

High-efficiency (>30%) monolithic perovskite-Si tandem solar cells with flat front-side wafers