Enhanced photovoltaic performance and stability of perovskite solar cells by interface engineering with poly(4-vinylpyridine) and Cu2ZnSnS4&amp;CNT

Shadrokh, Z.; Sousani, Shima; Gholipour, Somayeh; Abdi, Yaser

doi:10.1016/j.solener.2020.03.093

Cited by 17 publications

(10 citation statements)

References 56 publications

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“…embedded SWCNTs into inorganic Cu 2 ZnSnS 4 HTL in mesoscopic n–i–p structured PSCs, resulting in an increased J sc from 18.3 to 20.5 mA cm −2 . [ 172 ] The incorporation of high conductive CNTs into Cu 2 ZnSnS 4 decreased the hole transport resistance and increased the charge recombination resistance, leading to improved J sc and FF. By inserting an interlayer of poly(4‐vinylpyridine) (PVP) to the interface between perovskite and SWCNT‐Cu 2 ZnSnS 4 HTL, the resulting PSC achieved an increased PCE of 15.2% because of the passivating effect of PVP on the surface trap states of perovskite.…”

Section: Carbon Nanotubes As Hole Transport Materialsmentioning

confidence: 99%

Recent Advances in Carbon Nanotube Utilizations in Perovskite Solar Cells

Luo

et al. 2020

Adv Funct Materials

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Metal halide perovskite solar cells (PSCs) have emerged as promising next‐generation photovoltaic devices with the maximum output efficiency exceeding 25%. Despite significant advances, there are many challenges to achieve high efficiency, stability, and low‐cost simultaneously. Combating these challenges depends on developing novel materials and modifying conventional device components. Carbon nanotubes (CNTs) have attracted considerable attention for fabricating efficient PSCs owing to their remarkable electrical, optical, and mechanical properties. With their multifunctional features, CNTs can play a wide range of roles and offer unique benefits in various components in PSCs to improve device performance and durability. Here, recent progress concerning the utilizations of CNTs as transparent conductive electrodes, charge‐transporter, perovskite additives, interlayers, hole‐transporting materials, and back electrodes in PSCs is comprehensively reviewed. The application of CNTs toward the development of 1D and 2D flexible PSCs is also discussed. A summary of current challenges and prospective on future research directions of employing CNTs to realize high‐performance PSCs is presented.

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Section: Carbon Nanotubes As Hole Transport Materialsmentioning

confidence: 99%

Recent Advances in Carbon Nanotube Utilizations in Perovskite Solar Cells

Luo

et al. 2020

Adv Funct Materials

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“…The nontoxic earth-abundant CZTS semiconductor featured by suitable optoelectrical properties, thermal stability, facile and low-cost synthesis, and band-gap tunability has also been investigated as an HTM in n–i–p and p–i–n structured PSCs, as well as in common applications as a light absorber. − Figure c illustrates the body of these research by different groups in the literature (more details in the Supporting Information, Table S1 and Figure S1). OLAM-capped NPs and OLAM-free NPs are two categorizations for CZTS-based HTMs that have been used in PSCs by different methods of synthesis.…”

Section: Introductionmentioning

confidence: 99%

“…It is worth noting that all of these investigations have been mostly performed for the MAPbI 3 single cation absorber layer. Different morphologies and sizes (QDs, NPs, and macroporous), , different anionic ratios (S/Se), , ligand-engineered CZTS NPs, ligand-free CZTS NPs dispersed in 1-hexanethiol, different crystalline phases, and CZTS-based composites ,,, were applied as HTMs in PSCs. The highest efficiency of 17.71% was reported by Cao et al in 2020 for the n–i–p structure using ligand-free CZTS NP HTM and the FAPbI 3 absorber layer with a small active area of 0.04 cm 2 .…”

Section: Introductionmentioning

confidence: 99%

Effect of Zn/Sn Ratio on Perovskite Solar Cell Performance Applying Off-Stoichiometric Cu₂ZnSnS₄/Carbon Hole-Collecting Electrodes

Heidariramsheh

Forouzandeh

Taghavinia

et al. 2022

ACS Appl. Mater. Interfaces

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Low-cost inorganic hole-transporting materials (HTMs) accompanied by a printable carbon electrode is an efficient approach to address the limitation of material cost of perovskite solar cells (PSCs) and get this technology closer to commercialization. The present work is focused on optimizing the Zn/Sn ratio of Cu 2 ZnSnS 4 /carbon hole collectors in n−i− p structured PSCs, where CuInS 2 /carbon is applied as the reference hole collector. This composition regulation is a solution to address the challenge of composition-related defects of the Cu 2 ZnSnS 4 (CZTS) material. The Zn/ Sn ratio was tuned by the initial proportion of the zinc precursor during the nanoparticle (NP) synthesis using a heating-up procedure. It was found that the enhancement of the Zn/Sn ratio leads to a gradual increase of the optical band gap. More importantly, an increased density of B-type defect clusters [2Zn Cu + Zn Sn ] is confirmed using Raman results. Additionally, results from the cyclic voltammetry measurement show that by increasing the Zn/Sn value, the highest occupied molecular orbital (HOMO) of HTM is pulled down. These data match the upward trend of photovoltage. CZTS HTM with an optimal Zn/Sn ratio of 1.5 has a compatible energy level, along with the features of uniform and smooth coverage. The best efficiency of about 14.86% was obtained for optimal CZTS/carbon-based PSCs, which reaches from 14.86 to 15.49% after 25 days of aging.

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“…The PSCs have exceptional optoelectronic properties due to low cost [3], rapid extraction, the transportability of the electron transport layer (ETL), and the electron blocking properties of the hole transport layer (HTL) [4][5][6]. Studies have shown that the engineering of interfaces and contact layers leads to the enhanced photovoltaic performance of PSCs [7]. Therefore, in addition to the high-quality absorber layer such as the wide bandgap [8], the performance of PSCs significantly depends on the choice of ETL, HTL materials, and electrical contacts [9].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Calcium-Doped Titania (TiO2) as an Effective Electron Transport Layer (ETL) for Perovskite Solar Cells

et al. 2022

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Ca-doped TiO2 films were synthesized by the modified sol-gel method and employed as the electron transport material of perovskite solar cells (PSCs). Morphological, optoelectronic, thermal, and electrical studies of thin films were investigated through XRD, RAMAN, SEM, AFM, UV- Vis, FTIR, and IV characteristics. Ca doping was detected with the help of structural properties while morphological analysis revealed that thin films based on Ca-doped titania are crack-free, homogenous, and uniformly distributed. Further optoelectronic properties have shown a promising conversion efficiency of 9.79% for 2% Ca-doped titania followed by 1% Ca-doped titania, while 3% have shown the lowest conversion efficiency among these prepared samples. The 2% an optimized doping of Ca has shown an almost two-fold increase in conversion efficiency in comparison to pristine TiO2, along with an increase in current density from 15 mA cm−2 to 19.3 mA⋅cm−2. Improved energy efficiency and higher current density are attributed to faster electron transportation; moreover, the optimized percentage of Ca doping seems to be an effective approach to improve the PSCs’ performance.

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Enhanced photovoltaic performance and stability of perovskite solar cells by interface engineering with poly(4-vinylpyridine) and Cu2ZnSnS4&CNT

Cited by 17 publications

References 56 publications

Recent Advances in Carbon Nanotube Utilizations in Perovskite Solar Cells

Recent Advances in Carbon Nanotube Utilizations in Perovskite Solar Cells

Effect of Zn/Sn Ratio on Perovskite Solar Cell Performance Applying Off-Stoichiometric Cu₂ZnSnS₄/Carbon Hole-Collecting Electrodes

Performance Analysis of Calcium-Doped Titania (TiO2) as an Effective Electron Transport Layer (ETL) for Perovskite Solar Cells

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Enhanced photovoltaic performance and stability of perovskite solar cells by interface engineering with poly(4-vinylpyridine) and Cu2ZnSnS4&CNT

Cited by 17 publications

References 56 publications

Recent Advances in Carbon Nanotube Utilizations in Perovskite Solar Cells

Recent Advances in Carbon Nanotube Utilizations in Perovskite Solar Cells

Effect of Zn/Sn Ratio on Perovskite Solar Cell Performance Applying Off-Stoichiometric Cu2ZnSnS4/Carbon Hole-Collecting Electrodes

Performance Analysis of Calcium-Doped Titania (TiO2) as an Effective Electron Transport Layer (ETL) for Perovskite Solar Cells

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Effect of Zn/Sn Ratio on Perovskite Solar Cell Performance Applying Off-Stoichiometric Cu₂ZnSnS₄/Carbon Hole-Collecting Electrodes