High‐Performance Perovskite Solar Cells with Enhanced Environmental Stability Based on Amphiphile‐Modified CH3NH3PbI3

Bi, Dongqin; Gao, Peng; Scopelliti, Rosario; Oveisi, Emad; Luo, Jingshan; Grätzel, Michaël; Hagfeldt, Anders; Nazeeruddin, Mohammad Khaja

doi:10.1002/adma.201505255

Cited by 274 publications

(212 citation statements)

References 41 publications

Supporting

Mentioning

202

Contrasting

Unclassified

Order By: Relevance

“…It is thus urgent to explore a method to gain high-quality films and improve perovskite crystallization. In previous studies on the MAPbI 3 perovskite, the additive method was an effective way to control perovskite crystallization and growth in simple solution chemistry [22][23][24][25][26][27][28][29][30][31][32][33][34][35]. In general, additives can be divided into several types: Organic molecules [25,[27][28][29]36,37], inorganic or ammonium salts [23,[30][31][32][33][34][35], polymers [26] and ionic liquids [22].…”

Section: Introductionmentioning

confidence: 99%

CH3NH3Cl Assisted Solvent Engineering for Highly Crystallized and Large Grain Size Mixed-Composition (FAPbI3)0.85(MAPbBr3)0.15 Perovskites

Zhang

et al. 2017

Crystals

View full text Add to dashboard Cite

High-quality mixed-cation lead mixed-halide (FAPbI 3 ) 0.85 (MAPbBr 3 ) 0.15 perovskite films have been prepared using CH 3 NH 3 Cl additives via the solvent engineering method. The UV/Vis result shows that the addition of additives leads to enhanced absorptions. XRD and SEM characterizations suggest that compact, pinhole-free and uniform films can be obtained. This is attributable to the crystallization improvement caused by the CH 3 NH 3 Cl additives. The power conversion efficiency (PCE) of the F-doped SnO 2 (FTO)/compact-TiO 2 /perovskite/Spiro-OMeTAD/Ag device increases from 15.3% to 16.8% with the help of CH 3 NH 3 Cl additive.

show abstract

Section: Introductionmentioning

confidence: 99%

CH3NH3Cl Assisted Solvent Engineering for Highly Crystallized and Large Grain Size Mixed-Composition (FAPbI3)0.85(MAPbBr3)0.15 Perovskites

Zhang

et al. 2017

Crystals

View full text Add to dashboard Cite

show abstract

“…32 Targeting commercialization of perovskite solar cells, we treat the stability as seriously as the photovoltaic 13 efficiency. 33 We test the stability of the sealed devices stored in dry and dark conditions. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Morphology Engineering: A Route to Highly Reproducible and High Efficiency Perovskite Solar Cells

Luo

Wang

et al. 2017

ChemSusChem

Self Cite

View full text Add to dashboard Cite

Despite the rapid increase in the performance of perovskite solar cells, they still suffer from low lab-to-lab or people-to-people reproducibility. Aiming for a universal condition to high performance devices, we investigated the morphology evolution of the composite perovskite by tuning annealing temperature and precursor concentration of the perovskite film. Here we introduce thermal annealing as a powerful tool to generate a well controlled excess of PbI 2 in the perovskite formulation and show that this benefits the photovoltaic performance. We demonstrated the correlation between the film microstructure and electronic property and device performance. An optimized average grain size/thickness aspect ratio of the perovskite crystallite is identified, which brings about a highly 2 reproducible power conversion efficiency (PCE) of 19.5%, with a certified value of 19.08%.Negligible hysteresis and outstanding morphology stability are observed with these devices. These findings lay the foundation for further boosting the PCE of PSC and can be very instructive in fabrication high quality perovskite films for a variety of applications, such as light-emitting diodes, field-effect transistors and photo-detectors, etc.

show abstract

“…CsPbBr 3 showed much higher onset temperature of evaporation/deposition (∼580°C) than did MAPbBr 3 (∼220°C) (12); thus, Cs-based perovskites can be an important research topic for achieving high stability in PeLEDs. Introduction of a quasi-2D perovskite structure (13,14) and a fluorinated ammonium cations (15), cross-linking of perovskite crystals (16), and Lewis base treatment of perovskite layers (73) can be also effective ways to improve device stability.…”

Section: Future Directionsmentioning

confidence: 99%

mentioning

confidence: 94%

“…Especially, perovskites with high color purity, easy wavelength tuning, and efficient charge injection/ transport property have been intensively studied as promising candidates for future light emitters (8-10). Furthermore, stable and environmentally benign perovskites, which were recently reported, further raise the possibility of perovskites as future emitters in display technology (11)(12)(13)(14)(15)(16)(17)(18)(19).However, early works on layer-type (i.e., 2D) perovskite emitters, in the 1990s, did not gain much attention (1-5). The layer-type perovskite emitters incorporating longchain organic ammoniums can generate stable excitons at low temperature, but the photoluminescence (PL) intensity dramatically decreased as temperature increased, so the perovskite light-emitting diodes (PeLEDs) exhibited electroluminescence (EL) only at low temperature (<110 K) (1-5).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Metal halide perovskite light emitters

Kim

Cho

Lee

2016

Proc. Natl. Acad. Sci. U.S.A.

499

441

View full text Add to dashboard Cite

Twenty years after layer-type metal halide perovskites were successfully developed, 3D metal halide perovskites (shortly, perovskites) were recently rediscovered and are attracting multidisciplinary interest from physicists, chemists, and material engineers. Perovskites have a crystal structure composed of five atoms per unit cell (ABX 3 ) with cation A positioned at a corner, metal cation B at the center, and halide anion X at the center of six planes and unique optoelectronic properties determined by the crystal structure. Because of very narrow spectra (full width at half-maximum ≤20 nm), which are insensitive to the crystallite/grain/particle dimension and wide wavelength range (400 nm ≤ λ ≤ 780 nm), perovskites are expected to be promising high-color purity light emitters that overcome inherent problems of conventional organic and inorganic quantum dot emitters. Within the last 2 y, perovskites have already demonstrated their great potential in light-emitting diodes by showing high electroluminescence efficiency comparable to those of organic and quantum dot light-emitting diodes. This article reviews the progress of perovskite emitters in two directions of bulk perovskite polycrystalline films and perovskite nanoparticles, describes current challenges, and suggests future research directions for researchers to encourage them to collaborate and to make a synergetic effect in this rapidly emerging multidisciplinary field.As human civilization went through the information revolution, display technology has been designated as a core technology to increase convenience in daily human life. In an information society, the desire of humans to see the materials more vividly in displays has significantly increased. In this aspect, major trend of the display technology is changing from high resolution and high efficiency to high color purity for realizing vivid natural colors (Fig. 1). Therefore, research on new emitting materials that can emit light with narrow full width at halfmaximum (FWHM) have been attempted. Inorganic quantum dot (QD) emitters with narrow spectra (FWHM ∼30 nm) have been significantly studied following organic emitters (FWHM >40 nm); however, size-sensitive color purity, difficult size uniformity control, and expensive material costs of inorganic QD emitters retard the progress for wide use in industry. Therefore, new emitters with size-insensitively high color purity (FWHM <20 nm) and low material cost should be developed. Among many candidates, metal halide perovskites (hereafter, "perovskites") have gained great attentions and shown the possibility for future high-color purity emitters.The first perovskites were layer-type thin films (A 2 MX 4 ) (A = organic cation; M = divalent metal; X = Cl, Br, I) (1-6).They were expected to be novel hybrid materials that had both advantages of organic materials (e.g., solution processability and low material costs) and inorganic materials (e.g., high charge carrier mobility) (7). Especially, perovskites with high color purity, easy wavelength tuning, and ...

show abstract

High‐Performance Perovskite Solar Cells with Enhanced Environmental Stability Based on Amphiphile‐Modified CH₃NH₃PbI₃

Cited by 274 publications

References 41 publications

CH3NH3Cl Assisted Solvent Engineering for Highly Crystallized and Large Grain Size Mixed-Composition (FAPbI3)0.85(MAPbBr3)0.15 Perovskites

CH3NH3Cl Assisted Solvent Engineering for Highly Crystallized and Large Grain Size Mixed-Composition (FAPbI3)0.85(MAPbBr3)0.15 Perovskites

Morphology Engineering: A Route to Highly Reproducible and High Efficiency Perovskite Solar Cells

Metal halide perovskite light emitters

Contact Info

Product

Resources

About