Kesterite Cu<sub>2</sub>ZnSnS<sub>4</sub> as a Low-Cost Inorganic Hole-Transporting Material for High-Efficiency Perovskite Solar Cells

Wu, Qiliang; Xue, Cong; Li, Yang; Zhou, Pengcheng; Liu, Weifeng; Zhu, Jun; Dai, Songyuan; Zhu, Chen; Yang, Shangfeng

doi:10.1021/acsami.5b09572

Cited by 149 publications

(93 citation statements)

References 57 publications

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“…Wu et al have applied Kesterite‐structured quaternary semiconductor Cu 2 ZnSnS 4 (CZTS) nanoparticles as an inorganic HTM for PSCs for the first time, and a PCE of 12.75% has been achieved under the optimized conditions (size of CZTS nanoparticles is 20 ± 2 nm, the thickness of CZTS HTM layer is ca. 200 nm) . Koo et al employed octadecylamine‐capped pyrite nanoparticles (ODA‐FeS 2 NPs) as a bi‐functional layer (charge extraction layer and moisture‐proof layer) for PSCs and the best‐performing device shows a power conversion efficiency of 12.6% and maintains stable photovoltaic performance in 50% relative humidity for 1000 h .…”

Section: Dopant‐free Hole Transporting Materials For Pscsmentioning

confidence: 99%

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Rezaee

Liu

et al. 2018

Solar RRL

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This article reviews various dopant-free hole transporting materials (HTMs) used in perovskite solar cells (PSCs) in three main categories including inorganic, polymeric, and small molecule HTMs. PSCs have undergone rapid progress, achieving power conversion efficiencies (PCEs) above 22%. With their low production cost and high efficiencies, PSCs are considered promising next-generation solar cell technology. In all developed architectures for PSCs, including planar and mesoscopic with conventional and inverted structures, HTMs play a significant role in determining the photovoltaic performance of PSCs. Using p-type dopants, however, is considered a common strategy to increase the hole conductivity of HTM, which is usually compensated by a more complicated fabrication procedure, higher production costs, and lower stability of PSC. Although several reviews on HTMs have been published, progress on dopant free HTMs needs to be reviewed and analyzed. Here, a review covering most of the published reports on dopantfree HTMs is presented, and the device structure and fabrication method, HTM layer deposition techniques, and the efficiency and the stability of PSCs are addressed during discussions in each main category. Finally, an outlook on stability and PCE growth in PSCs based on dopant-free HTMs is presented.

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Section: Dopant‐free Hole Transporting Materials For Pscsmentioning

confidence: 99%

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Rezaee

Liu

et al. 2018

Solar RRL

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“…Thus, this material acts as inorganic HTM for organo‐lead halide PSCs. Wu et al., developed the PSCs using Cu 2 ZnSnS 4 as a HTM and their energy levels well matched with perovskite, thereby PCE achieved nearly 13 % (Figure a) . In this report, nanoparticles were synthesized with different sizes such as CZTS‐20, CZTS‐30, and CZTS‐40 with different reaction times of 20, 30 and 40 min and their optical absorption compared with commonly used organic HTM as spiro‐OMeTAD.…”

Section: Inorganic Htm Based Pscsmentioning

confidence: 81%

Emerging of Inorganic Hole Transporting Materials For Perovskite Solar Cells

Rajeswari

Mrinalini

Prasanthkumar

et al. 2017

The Chemical Record

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Hole transporting material (HTM) is a significant component to achieve the high performance perovskite solar cells (PSCs). Over the years, inorganic, organic and hybrid (organic-inorganic) material based HTMs have been developed and investigated successfully. Today, perovskite solar cells achieved the efficiency of 22.1 % with with 2,2',7,7'-tetrakis(N,Ndi-p-methoxyphenyl-amine) 9,9-spirobifluorene (spiro-OMeTAD) as HTM. Nevertheless, synthesis and cost of organic HTMs is a major challenging issue and therefore alternative materials are required. From the past few years, inorganic HTMs showed large improvement in power conversion efficiency (PCE) and stability. Recently CuO x reached the PCE of 19.0% with better stability. These developments affirms that inorganic HTMs are better alternativesto the organic HTMs for next generation PSCs. In this report, we mainly focussed on the recent advances of inorganic and hybrid HTMs for PSCs and highlighted the efficiency and stability of PSCs improved by changing metal oxides as HTMs. Consequently, we expect that energy levels of these inorganic HTMs matches very well with the valence band of perovskites and improved efficiency helps in future practical deployment of low cost PSCs.

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“…When the CZTS NP layer was introduced into the solar cell, the hystersis of the PCE of 16.3 % was obtained, indicating a better effect on the hole transporting, a dramatic improvement in the charge extraction and reduced recombination. 13,17 Therefore, the CZTS NP layer is proved to be a suitable HTM for the use in perovskite solar cells. …”

Section: Resultsmentioning

confidence: 99%

High-efficiency perovskite solar cells improved with low-cost orthorhombic Cu2ZnSnS4 as the hole-transporting layer

Zuo¹,

Chen²,

Jiang³

et al. 2018

Mater. Tehnol.

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Quaternary copper chalcogenide Cu2ZnSnS4 (CZTS) nanoparticles (NPs) were synthesized with the sol-gel technique and used as the hole-transporting layer (HTL), achieving a power-conversion efficiency (PCE) of 13.41 %, which is the highest PCE for Cu-based inorganic HTLs. The effects of the CZTS HTL on the optical absorption, crystallinity, crystal plane orientation and hysteresis of the J-V curve for the devices with a perovskite film were investigated and compared with spiro-OMeTAD, revealing the role of CZTS in efficient hole transporting in perovskite solar cells. In addition to the traditional use of the light absorber, this study reveals a new role of CZTS in photovoltaics, acting as an HTL, providing a completely different insight into the CZTS development. Keywords: Cu 2 ZnSnS 4 , perovskite, solar cells, hole-transporting layer Avtorji prispevka so sintetizirali nanodelce (NPs; angl.: Nano-Particles) kvaternarnega bakrovega halkogenida Cu2ZnSnS4 (CZTS) s sol-gel tehniko in jih uporabili kot transportno plast za praznine (HTL; angl.: hole transporting layer). S tem so dosegli 13,41 % u~inkovitost pretvorbe mo~i (PCE; angl.: Power Conversion Efficiency), kar je do sedaj najvi{ja dose`ena PCE z anorganskimi HTL-ji na osnovi Cu. Avtoriji so raziskali vpliv CZTS HTL na opti~no absorpcijo, kristalini~nost, orientacijo kristalne ravnine in histerezo J-V krivulje za naprave s perovskitnim filmom in ga primerjali s spiro-OMeTAD ter odkrili vlogo CZTS pri u~inkovitosti transporta praznin v perovskitnih son~nih celicah. Ta {tudija, dodatno k tradicionalni uporabi svetlobnih absorberjev, odkriva nov pomen CZTS v fotovoltaiki kot HTL, kar omogo~a popolnoma nov pogled v razvoju CZTS.

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Kesterite Cu₂ZnSnS₄ as a Low-Cost Inorganic Hole-Transporting Material for High-Efficiency Perovskite Solar Cells

Cited by 149 publications

References 57 publications

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Emerging of Inorganic Hole Transporting Materials For Perovskite Solar Cells

High-efficiency perovskite solar cells improved with low-cost orthorhombic Cu2ZnSnS4 as the hole-transporting layer

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Kesterite Cu2ZnSnS4 as a Low-Cost Inorganic Hole-Transporting Material for High-Efficiency Perovskite Solar Cells

Cited by 149 publications

References 57 publications

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Dopant‐Free Hole Transporting Materials for Perovskite Solar Cells

Emerging of Inorganic Hole Transporting Materials For Perovskite Solar Cells

High-efficiency perovskite solar cells improved with low-cost orthorhombic Cu2ZnSnS4 as the hole-transporting layer

Contact Info

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Kesterite Cu₂ZnSnS₄ as a Low-Cost Inorganic Hole-Transporting Material for High-Efficiency Perovskite Solar Cells