Nickel oxide nanoparticles for efficient hole transport in p-i-n and n-i-p perovskite solar cells

Liu, Zonghao; Zhu, Aili; Cai, Fensha; Lei, Tao; Zhou, Yinhua; Zhao, Zhixin; Chen, Qi; Cheng, Yi‐Bing; Zhou, Huanping

doi:10.1039/c7ta01593c

Cited by 201 publications

(136 citation statements)

References 56 publications

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“…[16a] As shown in the energy diagram of Figure 1a, the energy level of PEDOT:PSS is well aligned with spiro-OMeTAD for efficient charge extraction. [8,17] The as-resulted absorber layer of CH 3 NH 3 PbI 3 (Cl) has been shown to improve carrier transport across the heterojunction interfaces. Cross-sectional SEM images of Device A and Device C are shown in Figure S2 (Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Rationally Induced Interfacial Dipole in Planar Heterojunction Perovskite Solar Cells for Reduced J–V Hysteresis

Liu

Chen

Lee

et al. 2018

Advanced Energy Materials

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With the rapid progress in developing hybrid perovskite solar cells, the allure of current density–voltage ( J–V) hysteresis has attracted quite a lot of interest in the research community. It requires feasible approaches that further deepen the fundamental understanding of device physics in specific device architecture in order to solve this problem eventually. Here, perovskite solar cells configured with different counter electrodes are systematically investigated with the focus on charge accumulation within the devices responsible for J–V hysteresis. The results indicate that J–V hysteresis is affected by charge accumulation which can be modulated by carrier extraction efficiency of the electrodes. Through a rationally induced interfacial dipole, the devices have shown improvement in carrier extraction, which thus reduces J–V hysteresis significantly. It provides solid evidence for the proposition that interface charge plays an important role in J–V hysteresis, and demonstrates an applicable strategy that effectively alleviates J–V hysteresis in perovskite solar cells.

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Section: Resultsmentioning

confidence: 99%

Rationally Induced Interfacial Dipole in Planar Heterojunction Perovskite Solar Cells for Reduced J–V Hysteresis

Liu

Chen

Lee

et al. 2018

Advanced Energy Materials

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“…[10] After thermal selenization process, new XRD peaks emerge accompanied with the complete disappearance of the typical NiCH and NiFe-PBA peaks, suggesting complete transformation of the NiFe-PBA@NiCH@CC into a new crystal phase. [12] The same diffraction peaks are also detected in the XRD pattern of the NiSe|O@CC, which suggests the formation of the oxide phase mostly in the support carbonate hydroxide derived selenide structure. [11] Slight peak shift and peak intensity change are observed in the XRD pattern of NiFeSe@NiSe|O@CC compared to that of NiSe|O@CC prepared by direct selenization of NiCH@CC ( Figure S13, Supporting Information).…”

Section: Resultsmentioning

confidence: 55%

Pseudomorphic Transformation of Interpenetrated Prussian Blue Analogs into Defective Nickel Iron Selenides for Enhanced Electrochemical and Photo‐Electrochemical Water Splitting

Yilmaz

Tan

Lim

et al. 2018

Advanced Energy Materials

158

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A significant methodology gap remains in the construction of advanced electrocatalysts, which has collaborative defective functionalities and structural coherence that maximizes electrochemical redox activity, electrical conductivity, and mass transport characteristics. Here, a coordinative self‐templated pseudomorphic transformation of an interpenetrated metal organic compound network is conceptualized into a defect‐rich porous framework that delivers highly reactive and durable photo(electro)chemical energy conversion functionalities. The coordinative‐template approach enables previously inaccessible synthesis routes to rationally accomplish an interconnected porous conductive network at the microscopic level, while exposing copious unsaturated reactive sites at the atomic level without electronic or structural integrity trade‐offs. Consequently, porous framework, interconnected motifs, and engineered defects endow remarkable electrocatalytic hydrogen evolution reaction and oxygen evolution reaction activity due to intrinsically improved turnover frequency, electrochemical surface area, and charge transfer. Moreover, when the hybrid is coupled with a silicon photocathode for solar‐driven water splitting, it enables photon assisted redox reactions, improved charge separation, and enhanced carrier transport via the built‐in heterojunction and additive co‐catalyst functionality, leading to a promising photo(electro)chemical hydrogen generation performance. This work signifies a viable and generic approach to prepare other functional interconnected metal organic coordinated compounds, which can be exploited for diverse energy storage, conversion, or environmental applications.

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“…[164] Allerdings wird Perowskit durch tBP korrodiert und durch feuchtigkeitsempfindliches TFSI abgebaut. [132] Einige stabile Lochtransportmaterialien, die bei niedrigen Te mperaturen hergestellt werden, wie NiO,C uI und Poly(3-hexylthiophen) (P3HT), [167][168][169][170] wurden als Ersatz fürd ie häufig verwendeten HTLs entwickelt. [132] Einige stabile Lochtransportmaterialien, die bei niedrigen Te mperaturen hergestellt werden, wie NiO,C uI und Poly(3-hexylthiophen) (P3HT), [167][168][169][170] wurden als Ersatz fürd ie häufig verwendeten HTLs entwickelt.…”

Section: Ito-freiunclassified

Flexible Perowskit‐Solarzellen: Herstellung und Anwendungen

Yang

Priya

et al. 2019

Angewandte Chemie

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Flexible Perowskit‐Solarzellen werden aufgrund ihres vielversprechenden Potentials in der tragbaren Elektronik intensiv erforscht. Verschiedene Niedertemperatur‐Herstellungsmethoden für Perowskitfilme und große Fortschritte bei der gezielten Abstimmung der Schnittstellen und Elektrodenmaterialien haben zu Effizienzen von über 18 % geführt. Dieser Aufsatz diskutiert die jüngsten Entwicklungen bei flexiblen Perowskit‐Solarzellen mit Schwerpunkt auf: 1) Niedertemperatur‐Herstellungsmethoden zur Verbesserung der Eigenschaften von Perowskitfilmen, wie vollständige Bedeckung, einheitliche Morphologie und gute Kristallinität; 2) Schnittstellen/Grenzflächen in flexiblen Perowskit‐Solarzellen, einschließlich Kennzahlen wie Transmissionsgrad, Ladungsträgerbeweglichkeit, Bandlückenabstand; 3) mechanische und Umgebungsstabilität flexibler Perowskit‐Solarzellen; 4) Ausblick auf flexible Perowskit‐Solarzellen in tragbaren Elektronikgeräten und deren Kosten; 5) Perspektiven zur Kommerzialisierung flexibler Perowskit‐Solarzellen.

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Nickel oxide nanoparticles for efficient hole transport in p-i-n and n-i-p perovskite solar cells

Abstract: Here, a low-temperature solution-processed nickel oxide (NiOx) thin film was first employed as a hole transport layer in both inverted (p-i-n) planar and regular (n-i-p) mesoscopic organic–inorganic hybrid perovskite solar cells (PVSCs).

Cited by 201 publications

References 56 publications

Rationally Induced Interfacial Dipole in Planar Heterojunction Perovskite Solar Cells for Reduced J–V Hysteresis

Rationally Induced Interfacial Dipole in Planar Heterojunction Perovskite Solar Cells for Reduced J–V Hysteresis

Pseudomorphic Transformation of Interpenetrated Prussian Blue Analogs into Defective Nickel Iron Selenides for Enhanced Electrochemical and Photo‐Electrochemical Water Splitting

Flexible Perowskit‐Solarzellen: Herstellung und Anwendungen

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