1
|
Ma X, Zhou J, Liu Y, Xu S, Cao S. Supramolecular Framework Constructed by Dendritic Nanopolymer for Stable Flexible Perovskite Resistive Random-Access Memory. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206852. [PMID: 36526587 DOI: 10.1002/smll.202206852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/30/2022] [Indexed: 06/17/2023]
Abstract
The 3D supramolecular framework (3D-SF) is constructed in this work through the hydrogen bond assisted self-assembly of spherical dendritic nanopolymer to regulate the flexibility, stability, and resistive switching (RS) performance of perovskite resistive random-access memory (RRAM). Herein, the 3D-SF network acts as the perovskite crystallization template to regulate the perovskite crystallization process due to its coordination interaction of functional groups with the perovskite grains, presenting the uniform, pinhole-free, and compact perovskite morphology for stable flexible RRAM. The 3D-SF network in situ stays at the perovskite intergranular boundaries to crosslink the perovskite grains. The RS performance of 3D-SF-modified perovskite RRAM device is evidently improved to the ON/OFF ratio of 105 , the cycle number of 500 times, and the data retention time of 104 s. The 50-days exposure of unencapsulated RRAM device at ambient environment still makes the ON/OFF ratio to be kept at ≈104 , indicating the potential of long-term stable multilevel storage in the high-density data storage. The bending action under different radius also does not change the RS performance due to the excellent bending-resistant ability of 3D-SF-modified perovskite film. This work explores a novel polymer additive strategy to construct the 3D supramolecular framework for stable flexible perovskite optoelectronic devices.
Collapse
Affiliation(s)
- Xueqing Ma
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Jianjun Zhou
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Yingliang Liu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Shengang Xu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Shaokui Cao
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
- Henan Key Laboratory of Advanced Nylon Materials and Application, Zhengzhou University, Zhengzhou, 450001, P. R. China
| |
Collapse
|
2
|
Sardar S, Jana A, Mukherjee A, Dhara A, Bandyopadhyay A. Bottom-up synthesis of bright fluorescent, moisture-resistant methylammonium lead bromide@poly(3-bromothiophene). NEW J CHEM 2020. [DOI: 10.1039/c9nj04734d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bottom-up in situ synthesis of a bright green fluorescent nanocomposite, methylammonium lead bromide@poly(3-bromothiophene) is reported and the composite exhibits excellent moisture-resistivity.
Collapse
Affiliation(s)
- Soumen Sardar
- Department of Polymer Science and Technology
- University of Calcutta
- Calcutta 700009
- India
| | - Atanu Jana
- Center for Superfunctional Materials
- Department of Chemistry, School of Natural Science
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan 44919
- South Korea
| | - Avik Mukherjee
- Department of Polymer Science and Technology
- University of Calcutta
- Calcutta 700009
- India
| | - Anamika Dhara
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Abhijit Bandyopadhyay
- Department of Polymer Science and Technology
- University of Calcutta
- Calcutta 700009
- India
| |
Collapse
|
3
|
Liu Y, Xu Q, Chang S, Lv Z, Huang S, Jiang F, Zhang X, Yang G, Tong X, Hao S, Ren Y. Brightly luminescent and color-tunable green-violet-emitting halide perovskite CH 3NH 3PbBr 3 colloidal quantum dots: an alternative to lighting and display technology. Phys Chem Chem Phys 2018; 20:19950-19957. [PMID: 30022197 DOI: 10.1039/c8cp02776e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Organic-inorganic hybrid perovskite (CH3NH3PbX3, X = Cl, Br, or I) quantum dots have become one of the most promising materials for optoelectronic applications. We controllably synthesized CH3NH3PbBr3 quantum dots with a tunable spectrum with the emission peaks covering the range from green (523.6 nm), blue and eventually to deep violet (409.4 nm), which is wider than that of quantum dots obtained without changing the halide component. The mechanism of the blueshift was investigated. The purified quantum dots have allowed the fabrication of efficient electroluminescence devices having a simple glass/ITO/PEDOT:PSS/TFB/CH3NH3PbBr3 quantum dot/TPBi/LiF/Al structure. CH3NH3PbBr3 quantum dots with 5-30 μL n-octylamine showed an ideal color-saturated green emission with Commission Internationale de l'Eclairage color coordinates of (0.123, 0.744) and a narrow full width at half-maximum of 19-24 nm. The photoluminescence quantum yield was up to 90.2%. In addition, it is also worth noting that the chromaticity coordinates (x, y) of CH3NH3PbBr3 quantum dots with 50-100 μL n-octylamine are (0.300, 0.344), (0.305, 0.314) and (0.323, 0.318) in the white region. All these properties indicate that these MAPbBr3 quantum dots can provide effective data support for the application of white LEDs, and may potentially be used as single-component multicolor-emitting materials, which can be applied to lighting and display technology.
Collapse
Affiliation(s)
- Yonghao Liu
- School of physics and Electrical Information Engineering, Daqing Normal University, 163000, Daqing, China.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|