High‐Performance Hole‐Extraction Layer of Sol–Gel‐Processed NiO Nanocrystals for Inverted Planar Perovskite Solar Cells

Zhu, Zonglong; Yang, Bai; Zhang, Teng; Liu, Zhike; Long, Xia; Wei, Zhanhua; Wang, Zilong; Zhang, Lixia; Wang, Jiannong; Yan, Feng; Yang, Shihe

doi:10.1002/ange.201405176

Cited by 218 publications

(166 citation statements)

References 24 publications

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“…Exploring low cost and effective inorganic HTMs has attracted extensive attention. With the thin NiO nanocrystalline film as the HTM layer, a PCE of 9.11% has been achieved by Yang' group 133 . CuI, as the HTM layer, rendered the PV devices with higher FF compared with spiro-OMeTAD because of higher electrical conductivity.…”

Section: Progress In Htmmentioning

confidence: 99%

Organic–inorganic halide perovskite based solar cells – revolutionary progress in photovoltaics

Liu

Zhao

Cui

et al. 2015

Inorg. Chem. Front.

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The photovoltaic technology has been endowed with a huge chance, owing to the latest unprecedentedly rapid progress as a new-type solar cell based on organic-inorganic halide perovskite. The power conversion efficiency () has surpassed 19% since the first pervoskite-based solar cell (=3.8%) was reported in 2009. Moreover, that performance seems to be still far from fully optimized because of its versatile fabrication techniques and device configurations. In this review, the history of perovskites for photovoltaic application and the landmark achievements to date were briefly outlined. Focusing on this new solar absorber of halide perovskites, crystal structure, electronic structure, and intrinsic physical properties are systematically described, attempting to unravel the origin of superior solar cell performance. From the requirements of high-efficiency photovoltaics, the unique solar perovskite absorbers and electron and hole transport materials are discussed, as well as some opening questions and challenges facing their further development and commercialization. Xiangye Liu is currently a 4 th year PhD student in the College of Chemistry and Molecular Engineering, Peking University, under the guidance of Prof. Fuqiang Huang. He received his BS degree in chemistry from Hebei University, China in 2011. His thesis research focuses on design and synthesis of nanomaterials for solar energy applications.

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Section: Progress In Htmmentioning

confidence: 99%

Organic–inorganic halide perovskite based solar cells – revolutionary progress in photovoltaics

Liu

Zhao

Cui

et al. 2015

Inorg. Chem. Front.

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“…[90][91][92][93] Nonetheless, recent researches are moving toward dopant-free HTMs, such as NiO, as deliquescent nature of dopant may readily aggravate device performance. [94][95][96] …”

Section: Energy-level Alignmentmentioning

confidence: 99%

Hybrid Perovskites: Effective Crystal Growth for Optoelectronic Applications

Jeon

Kim

Yoon

et al. 2017

Advanced Energy Materials

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Outstanding material properties of organic-inorganic hybrid perovskites have triggered a new research insight into the next-generation solar cells. Moreover, a wide range of controllable properties of hybrid perovskites particularly depending on crystal growth conditions enables versatile high performance optoelectronic devices such as light-emitting diodes, photodetectors and lasers beyond solar cells. This invited review article highlights recent progress of the crystallization strategies of organic-inorganic hybrid perovskites for effective light harvester or light emitter. In the first part, fundamental background on the perovskite crystalline structures and relevant optoelectronic properties such as optical band-gap, electron-hole behavior and energy band alignment are introduced. In the second part, detailed overview of the effective crystallization methods for perovskites, including thermal treatment, additives, solvent mediator, laser irradiation, nanostructure, crystal dimensionality and so on, is described to offer a comprehensive correlation among perovskite processing conditions, crystalline morphology and relevant device performances. Finally, future research direction is proposed to overcome current practical bottlenecks and move towards reliable high performance perovskite optoelectronic applications.3

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“…[6] In a planar PSC, hole-and/or electron-transporting layers are always introduced to manipulate the carrier behavior in the device. [1,[7][8][9][10][11][12][13][14][15][16][17][18][19] It can serve as an efficient hole-blocking layer at the interface between [6,6]-phenyl-C61-butyric acid methyl ester) (PCBM) and metal contact by its wide bandgap. [3][4][5] In addition to the tailoring role of the energy levels, the upper interfacial film can also act as a significant protecting layer for the perovskite layer.…”

Section: Introductionmentioning

confidence: 99%

“…Particularly, a suitable interfacial layer can boost the indoor photovoltaic performance by improving the carrier extraction and reducing the sheet resistance effectively. [17][18][19][20] Particularly, alteration of the anions or the length of alkyl groups allows a fine tuning of the physicochemical properties of ILs, which enable them deliver wide application in batteries, [20][21][22] capacitors, [23][24][25] fuel cells, [26,27] and photovoltaics. With a suitable upper interfacial layer, it is prone to retard the infiltration of moisture and oxygen, resulting in a slowdown of the perovskite decomposition.…”

Section: Introductionmentioning

confidence: 99%

Interface Modification by Ionic Liquid: A Promising Candidate for Indoor Light Harvesting and Stability Improvement of Planar Perovskite Solar Cells

Zhao

Wang

et al. 2018

Advanced Energy Materials

191

105

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Organic–inorganic hybrid perovskite solar cells (PSCs) are currently attracting significant interest owing to their promising outdoor performance. However, the ability of indoor light harvesting of the perovskites and corresponding device performance are rarely reported. Here, the potential of planar PSCs in harvesting indoor light for low‐power consumption devices is investigated. Ionic liquid of 1‐butyl‐3‐methylimidazolium tetrafluoroborate ([BMIM]BF4) is employed as a modification layer of [6,6]‐phenyl‐C61‐butyric acid methyl ester) (PCBM) in the inverted PSCs. The incorporation of [BMIM]BF4 not only paves the interface contact between PCBM and electrode, but also facilitates the electron transport and extraction owing to the efficient passivation of the surface trap states. Moreover, [BMIM]BF4 with excellent thermal stability can act as a protective layer by preventing the erosion of moisture and oxygen into the perovskite layer. The resulting devices present a record indoor power conversion efficiency (PCE) of 35.20% under fluorescent lamps of 1000 lux, and an impressive PCE of 19.30% under 1 sun illumination. The finding in this work verifies the excellent indoor performance of PSCs to meet the requirements of eco‐friendly economy.

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High‐Performance Hole‐Extraction Layer of Sol–Gel‐Processed NiO Nanocrystals for Inverted Planar Perovskite Solar Cells

Cited by 218 publications

References 24 publications

Organic–inorganic halide perovskite based solar cells – revolutionary progress in photovoltaics

Organic–inorganic halide perovskite based solar cells – revolutionary progress in photovoltaics

Hybrid Perovskites: Effective Crystal Growth for Optoelectronic Applications

Interface Modification by Ionic Liquid: A Promising Candidate for Indoor Light Harvesting and Stability Improvement of Planar Perovskite Solar Cells

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