Morphology and Interface Engineering for Organic Metal Halide Perovskite–Based Photovoltaic Cells

Wei, Qi; Bi, Huan; Su, Yan; Wang, Shiwei

doi:10.1002/admi.201800248

Cited by 19 publications

(16 citation statements)

References 214 publications

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“…To understand the carrier dynamics in HOPs of type ABX 3 , detailed research into the atomic and electronic structures of these materials, which are always more complex than those of conventional optoelectronic devices, is required. [30] These perovskites form crystalline structures that contain organic Asite cations within the angular octahedral inorganic skeleton BX 3 (Figure 1a). Substitution at the sites of X (X = Cl − , Br − , I − ), B (B = Pb 2+ ), or = + + A (A CH NH , HC(NH ) 3 3 2 2 ) leads to a variety of different chemical and physical properties.…”

Section: Crystal Structures and Lattice Dynamicsmentioning

confidence: 99%

“…In 2016, a new prop erty of Fe based HOPs was found. [178] When [CH 3 NH 2 CH 3 ] [Fe(HCOO) 3 ] and [NH 3 OH][Fe(HCOO) 3 ] were considered, it was found that their spin states changed remarkably with changes in the environment. As Figure 12d shows, their mag netic moments shift as the pressure changes.…”

Section: Pressure Sensorsmentioning

confidence: 99%

“…It was not until 1978 that a hybrid organic‐inorganic perovskite (HOP) using methylamine first appeared and this material attracted widespread attention because of its excellent properties. HOPs combine the advantages of their organic and inorganic components, including the structural diversity, flexibility and machinability of organic materials and the high conductivity, thermal stability, tunable band structure, and unique magnetic and dielectric properties of inorganic materials, which has prompted further development and application of HOPs.…”

Section: Introductionmentioning

confidence: 99%

“…

and this material attracted widespread attention because of its excellent pro perties. HOPs combine the advantages of their organic and inorganic compo nents, including the structural diversity, flexibility [1,2] and machinability [3] of organic materials and the high conduc tivity, [4,5] thermal stability, [6] tunable band structure, [7] and unique magnetic and die lectric properties [8,9] of inorganic materials, which has prompted further development and application of HOPs.HOPs have demonstrated numerous attractive properties, including long car rier lifetimes, [10] high drift mobilities, [11] wavelengthtunable light absorption capabilities, [12] and low trap densities. [13] HOPs are thus promising candidate materials for use in traditional opto electronic devices, including photovol taic devices, [14][15][16] lightemitting diodes (LEDs), [17][18][19] and photodetectors, [20][21][22] with significant performance advantages.The field of HOP spintronics has only recently been established.

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mentioning

confidence: 99%

“…a) The structure of (HMTA)3 Pb 2 Br 7 (red: lead atoms; green: bromine atoms; blue: nitrogen atoms; gray: carbon atoms; purple polyhedra: PbBr 6 octahedra and Pb 2 Br 9 dimers; hydrogen atoms were hidden for clarity). b) SEM image of NWs prepared via doctor blading on SiO 2 substrate.…”

mentioning

confidence: 99%

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Spintronics of Hybrid Organic–Inorganic Perovskites: Miraculous Basis of Integrated Optoelectronic Devices

Liao

Cheng

et al. 2019

Advanced Optical Materials

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Hybrid organic–inorganic perovskite (HOP) spintronics aims to make full use of the properties of electron spin. HOP spintronics has recently emerged as a promising field of research because it provides a new precisely manipulable degree of freedom. The flourishing development activity in this field has benefited from the unique intrinsic spin‐related optoelectronic properties of HOPs, which include triplet formation, a large Stark effect, the magneto‐optical effect, polarized light‐related effects, and complex light emission characteristics, which offer the possibility of providing a new way to control the performance of integrated optoelectronic devices through spin interactions between photons and electrons. Along with the continuous improvements in the theoretical research into HOP spintronics, large numbers of novel optoelectronic devices have been proposed and demonstrated experimentally and have shown great potential for fabrication of next‐generation, high‐performance integrated optoelectronic chips. This review provides an overview of the fundamental principles, novel spin‐generated physical effects, and diverse structures of HOP spintronics systems, along with the applications of HOP spintronics in optoelectronic devices, while also undertaking a general review of the remaining challenges and proposing possible development directions that require further study for the application of HOP spintronics to integrated optoelectronic devices.

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Section: Crystal Structures and Lattice Dynamicsmentioning

confidence: 99%

Section: Pressure Sensorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…

…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Spintronics of Hybrid Organic–Inorganic Perovskites: Miraculous Basis of Integrated Optoelectronic Devices

Liao

Cheng

et al. 2019

Advanced Optical Materials

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On the Current–Voltage Hysteresis in Perovskite Solar Cells: Dependence on Perovskite Composition and Methods to Remove Hysteresis

2019

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Current‐density–voltage (J–V) hysteresis in perovskite solar cells (PSCs) is a critical issue because it is related to power conversion efficiency and stability. Although parameters affecting the hysteresis have been already reported and reviewed, little investigation is reported on scan‐direction‐dependent J–V curves depending on perovskite composition. This review investigates J–V hysteric behaviors depending on perovskite composition in normal mesoscopic and planar structure. In addition, methodologies toward hysteresis‐free PSCs are proposed. There is a specific trend in hysteresis in terms of J–V curve shape depending on composition. Ion migration combined with nonradiative recombination near interfaces plays a critical role in generating hysteresis. Interfacial engineering is found to be an effective method to reduce the hysteresis; however, bulk defect engineering is the most promising method to remove the hysteresis. Among the studied methods, KI doping is proved to be a universal approach toward hysteresis‐free PSCs regardless of perovskite composition. It is proposed from the current studies that engineering of perovskite film near the electron transporting layer (ETL) and the hole transporting layer (HTL) is of vital importance for achieving hysteresis‐free PSCs and extremely high efficiency.

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A Review of Inorganic Hole Transport Materials for Perovskite Solar Cells

Kung

Lin

et al. 2018

Adv Materials Inter

227

123

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IntroductionIn recent decades, the world has come to a consensus that new green energy sources are vital for sustainable development. Solar energy has been regarded as an alternative source of energy supply. Photovoltaic (PV) technology has progressed for decades with massive efforts devoted. Alternative technologies for photon to electron power conversion include, for instance, This review presents various hole transport layers (HTLs) employed in perovskite solar cells (PSCs) in pursuing high power conversion efficiency (PCE) and functional stability. The PSCs have achieved high PCE (over 23%, certified by NREL) and more efforts have been devoted into research for stability enhancement. Inorganic HTLs become a popular choice as selective contact materials because of their intrinsic chemical stability and low cost. HTLs and electron transport layers (ETLs) are critical components of PSCs due to the requirement to create charge collection selectivity. Herein the authors provide an overview on inorganic HTLs synthesis, properties, and their application in various PSCs for both mesoporous and planar architectures. InorganicHTLs with appropriate properties, such as proper energy level and high carrier mobility, can not only assist with charge transport, but also improve the stability of PSCs under ambient conditions. The importance of interfacial chemistry and interfacial charge transport is further addressed to understand the underlying mechanism of related degradation and carrier dynamic. It is expected that the success of the inorganic HTL in PSCs can stimulate further research and bring real impact for future photovoltaic technologies.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/admi.201800882. super-mesostructure Al 2 O 3 scaffold, achieving a PCE above 9% [6] and 10%, [7] respectively.

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Morphology and Interface Engineering for Organic Metal Halide Perovskite–Based Photovoltaic Cells

Cited by 19 publications

References 214 publications

Spintronics of Hybrid Organic–Inorganic Perovskites: Miraculous Basis of Integrated Optoelectronic Devices

Spintronics of Hybrid Organic–Inorganic Perovskites: Miraculous Basis of Integrated Optoelectronic Devices

On the Current–Voltage Hysteresis in Perovskite Solar Cells: Dependence on Perovskite Composition and Methods to Remove Hysteresis

A Review of Inorganic Hole Transport Materials for Perovskite Solar Cells

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