Block copolymer micelles enable facile synthesis of organic–inorganic perovskite nanostructures with tailored architecture

Nah, Yoonseo; Jang, Dohyub; Kim, Dong Ha

doi:10.1039/d0cc06935c

Cited by 7 publications

(7 citation statements)

References 26 publications

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“…Nah et al reported the production of organic-inorganic hybrid perovskite nanostructure by using block copolymer micelles as scaffolds. [62] The block copolymer used as a template was PSb-P2VP which when dissolved in toluene formed a reverse micelle nanoreactor. The block copolymer micelle acted as a perovskite precursor reservoir for storing crystallization reagents.…”

Section: Miscellaneous Examples Of Copolymer Engineeringmentioning

confidence: 99%

Copolymer Mediated Engineering of Halide Perovskites and Associated Devices: Current State and Future

Mathur

Khamgaonkar

Maheshwari

2023

Advanced Physics Research

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The field of halide perovskites has advanced significantly within a decade, as engineering strategies are addressing many of the challenges and as a result improved environmental stability and electro‐optical properties have been achieved. The use of the copolymer additive strategy has received significant attention in recent years as a variety of polymers with significant differences in properties such as water affinity, polarity, elastic modulus, ion conductivity and basis for interaction with perovskite can be selected and combined with halide perovskite. As a result, there has been a rapid increase in publications reporting the effectiveness of the inexpensive and readily available copolymer additives in altering the physicochemical, mechanical, and electro‐optical properties of the halide perovskites‐based high‐performance devices. This article is an effort to provide insight into the current state of copolymer‐mediated engineering of halide perovskites with a perspective on the reported improvements in the properties and performance of the perovskite‐based devices. Critical analysis is done on the potential of the copolymer–perovskite materials toward realizing commercial applications.

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Section: Miscellaneous Examples Of Copolymer Engineeringmentioning

confidence: 99%

Copolymer Mediated Engineering of Halide Perovskites and Associated Devices: Current State and Future

Mathur

Khamgaonkar

Maheshwari

2023

Advanced Physics Research

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“…The BCP template strategies successfully produced PQDs with good optical properties, including high PLQY ranging from 50% to 90% as well as narrow emission with full width at half-maximum (FWHM) typically less than 20 nm. 15,16,43,45,47 As described by Quan and co-workers, the optical properties of BCP-templated perovskites are related to the reaction temperature and precursor ratio. 41 The PLQY increased first then decreased with the temperature ranging from −15 °C to 40 °C, with the best PLQY of 51% achieved at around 20 °C.…”

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confidence: 98%

“…41 A similar method was used for preparing MAPbBr 3 QDs in a PS-b-P2VP template, and various nanostructures were obtained by controlling the stirring rate and reaction temperature. 47 Yang and co-workers showed a facile strategy for the preparation of stable PS-b-PEO-templated MAPbBr 3 PQDs. 42 The precursor solution with PbBr 2 , CsBr and oleic acid (OA) dissolved in DMF was added dropwise into a solution of PEO-b-PS-NH 2 in toluene.…”

mentioning

confidence: 99%

“…Varying the reaction temperature and molar ratio between CsBr and PbBr 2 could modulate the BCP-templated PQDs’ sizes . A similar method was used for preparing MAPbBr 3 QDs in a PS- b -P2VP template, and various nanostructures were obtained by controlling the stirring rate and reaction temperature . Yang and co-workers showed a facile strategy for the preparation of stable PS- b -PEO-templated MAPbBr 3 PQDs .…”

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confidence: 99%

“…In addition, the stirring speed and reaction temperature are crucial for structural control of the BCP-templated perovskite. As Kim and co-workers reported, different structures such as encapsulated nanocrystals, diffusion-limited products, anisotropic nanostructures and micron-sized nanoplates were prepared by controlling the stirring speed and reaction temperature. Quan and co-workers also proved that the grain size is sensitive to the stirring speed.…”

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confidence: 99%

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Synergy of Block Copolymers and Perovskites: Template Growth through Self-Assembly

Rafique

Zhan

2022

J. Phys. Chem. Lett.

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Block copolymers (BCPs) have been widely used as templates to prepare nanostructures over the past few decades. Ordered nanostructures can be formed after microphase segregation of BCPs. In this context, the newly emerging BCP-templated perovskites, in which the perovskite crystal growth has been confined within a self-assembled BCP nanostructure due to the interaction between the polymer block and the cation of the perovskite, have shown profound optical performance and environmental stability. Considering the promising performance of BCP-templated perovskites, this Perspective comprehensively reviews recent works in which BCPs are used as templates with three-dimensional perovskites and perovskite quantum dots, and their performance and stability are thoroughly discussed. Lastly, their potential applications in optoelectronics and biology are discussed.

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Phase‐Purified Ruddlesden–Popper Perovskites Vertically Oriented in Block Copolymer Nanostructures for Environmentally Stable Light Conversion and Charge Trapping

Kim

Lee

Han

et al. 2023

Advanced Optical Materials

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Abstract2D Ruddlesden–Popper perovskites (RPPs) with 2D layer‐tunable optoelectronic properties suffer from randomly oriented multiple phases. Herein, an efficient method for developing RPP films with controlled phase purity and crystal orientation via a one‐step synthesis of RPPs in a self‐assembled block copolymer (BCP) film is demonstrated. RPP crystals with a target phase <n = 2 or 3> are preferentially embedded in the poly(ethylene oxide) domains of a polystyrene‐block‐poly(ethylene oxide) nanostructured film. Interestingly, rapid self‐assembly with the BCP results in phase‐purified n = 2 and 3 targeted RPPs with a target phase percentage two and four times higher, respectively, than that of pristine RPP. Furthermore, RPP crystals synthesized within BCP are preferentially oriented with their b‐axis parallel to the surface normal. The photoluminescence of the composite film is significantly enhanced, allowing environmentally stable ultraviolet‐to‐blue color conversion. Moreover, semiconducting RPP crystals nanopatterned in the BCP are successfully used as charge‐trapping floating nanogates, resulting in a non‐volatile field‐effect transistor memory.

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Block copolymer micelles enable facile synthesis of organic–inorganic perovskite nanostructures with tailored architecture

Abstract: We report a distinct method for the production of organic–inorganic hybrid perovskite (OIHP) nanostructures using block copolymer micelles as scaffolds.

Cited by 7 publications

References 26 publications

Copolymer Mediated Engineering of Halide Perovskites and Associated Devices: Current State and Future

Copolymer Mediated Engineering of Halide Perovskites and Associated Devices: Current State and Future

Synergy of Block Copolymers and Perovskites: Template Growth through Self-Assembly

Phase‐Purified Ruddlesden–Popper Perovskites Vertically Oriented in Block Copolymer Nanostructures for Environmentally Stable Light Conversion and Charge Trapping

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