Low temperature processed inverted planar perovskite solar cells by r-GO/CuSCN hole-transport bilayer with improved stability

Chowdhury, Towhid H.; Akhtaruzzaman, Md.; Kayesh, Md. Emrul; Kaneko, Ryuji; Noda, Takeshi; Lee, Jae‐Joon; Islam, Ashraful

doi:10.1016/j.solener.2018.07.022

Cited by 58 publications

(43 citation statements)

References 23 publications

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“…Besides, it showed a significant improvement in the durability by maintaining 67% of its original PCE even after 30 d in the unencapsulated state. Chowdhury et al reported reduced graphene oxide (r‐GO)/copper (I) thiocyanate (CuSCN) as an efficient bilayer HTL for low temperature processed inverted planar PSCs, showed PCE of up to 14.28% with an improved light soaking stability up to 100 h . Yang et al proposed thermal rGO as one of the most promising materials for application in planar inverted PSCs .…”

Section: Structural Influence On the Stability Of Pscsmentioning

confidence: 99%

A Review of Perovskites Solar Cell Stability

Wang

Mujahid

Duan

et al. 2019

Adv Funct Materials

958

849

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the perovskite material onto transparent substrates covered with a compact TiO 2 layer and an optional mesoporous TiO 2 (or Al 2 O 3 ) scaffold layer. [34] The p-i-n structure, which involves depositing the perovskite material onto transparent substrates which are covered with an HTL, such as the poly(3,4-ethylene dioxythiophene):polystyrene sulfonic acid (PEDOT:PSS). [35] So far, PSCs based on both mesoporous and planar structure exhibit high performance and stability, however, the comparison of the advantages of two different strucutres in stability is still under debate. [36] Mesoporous Perovskite Solar CellsRecently, a new generation of photovoltaic converters, mesoporous solar cell [37] has attracted more consideration due to their low material cost, simple fabrication process, high energy conversion efficiencies, [38] like dye-sensitized solar cell, [38c] and mesoporous perovskite solar cell. [5a,21,39] PCE up to 9.7% has been achieved by using CH 3 NH 3 PbI 3 (MAPbI 3 ) perovskite nanocrystals as the light absorber to fabricate a solid-state MPSC. [21] After that the research focuses on solid-state MSCs began to transfer from DSSCs to MPSCs. [32a,40] In an MPSC, a compact layer is usually deposited on fluorine doped tin oxide (FTO) layer, which usually extracts electrons and block holes. Three strategies are broadly used for depositing the TiO 2 layer: 1) Spin-coating the colloidal dispersion of TiO 2 nanoparticles followed by a thermal treatment (titanium source: TiCl 4 , [41] titanium isopropoxide, [42] tetra-n-butyl-titanate; [43] 2) spin-coating titanium precursor solutions followed by a thermal treatment (titanium source: TiCl 4 , [44] titanium isopropoxide, [23] titanium diisopropoxide bis(acetylacetonate) 12 ); 3) spray pyrolysis deposition (titanium source: titanium diisopropoxide bis(acetylaceto nate) 18 ). [45] Low-temperature sintering approaches to prepare an

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Section: Structural Influence On the Stability Of Pscsmentioning

confidence: 99%

A Review of Perovskites Solar Cell Stability

Wang

Mujahid

Duan

et al. 2019

Adv Funct Materials

958

849

View full text Add to dashboard Cite

show abstract

“…Aer that, several researchers have used the same structures. [22][23][24][25] Several deposition methods were used in order to fabricate perovskite lms, such as one step spin coating by mixing the two precursors in the same solvent. Which is widely used coating method to form a perovskite thin lm on top of the mesoporous ETL, 26,27 due to the lack of suitable solvents that can dissolve both components, and the high reaction rate of the perovskite component.…”

Section: Introductionmentioning

confidence: 99%

MAPbBr₃ perovskite solar cells via a two-step deposition process

et al. 2019

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“…92 A stabilized PCE of 20.2% has been recorded with the triple cation CsFAMAPbI 3Àx Br x (FA = CH(NH 2 ) 2 + , MA = CH 3 NH 3 + ). A similar approach has been successfully applied in the inverted structure by Chowdhury et al 93 An ultrathin layer of CuSCN HTL has been introduced as an interlayer in low temperature processed r-GO based inverted planar PSCs (Fig. 7 In 2019 Park et al have proposed the post-treatment of CuSCN films with a second -SCN containing layer, as a way to further increase the PCE of inverted PSCs.…”

Section: Cyanates (Cuscn and Cusecn)mentioning

confidence: 99%

“…(a) Transmittance spectra of ITO, ITO/r-GO, ITO/CuSCN, ITO/ r-GO/CuSCN; (b) schematic diagram of the fabricated PSC; (c) energy level diagram of the fabricated PSC; and (d) light soaking stability of the unsealed PSCs fabricated by r-GO, CuSCN and r-GO/CuSCN HTLs 93. …”

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confidence: 99%