Host-guest synergy of CH3NH3PbBr3@Ln-MOFs enabling tunable green luminescence and switchable memory - Details

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Abstract：

Metal　organic　frameworks　(MOFs)　contain　ordered　pores　capable　of　encapsulating　varied　types　of　guests　and　provide　a　platform　to　expand　the　flexibility　and　versatility　of　the　host-guest　composites.　Herein,　by　encapsulating　CH3NH3PbBr3　NPS　into　Ln-MOFs　(Ln　=　La,　Nd,　Pr,　Sm),　four　CH3NH3PbBr3@Ln-MOFs　host-guest　composites　were　fabricated　and　served　as　a　bifunctional　platform.　The　temperature-dependent　luminescence　properties　of　the　CH3NH3PbBr3@Ln-MOFs　were　explored　and　the　results　revealed　their　tuneable　green　luminescence　performance.　In　particular,　the　CH3NH3PbBr3@Sm-MOF　exhibits　a　variety　of　colours　from　green　to　blue　to　purple　and　an　excellent　quantum　yield　of　0.98.　The　photocurrent　responses　and　theoretical　calculations　reveal　the　enhancement　mechanism　of　CH3NH3PbBr3　on　charge-hole　separation　owing　to　its　unique　host-guest　synergy.　Moreover,　the　CH3NH3PbBr3@Sm-MOF　exhibits　the　excellent　electrical　bi-stability　with　a　high　ON/OFF　ratio　of　104.　Hence,　the　CH3NH3PbBr3@Ln-MOFs　host-guest　composites　are　promising　candidates　for　a　new　generation　of　photovoltaic,　light-emitting,　and　switching　memories　devices.　©　2022　Elsevier　B.V.

Keyword：

Electrical bistability Host-guest composites Lanthanide metal-organic framework Perovskite nanoparticles Switching memories devices

Community：

[ 1 ] [Zhao, L.]College of Standardization, China Jiliang University, Hangzhou, 310018, China
[ 2 ] [Redshaw, C.]Department of Chemistry & Biochemistry, University of Hull, Hull, HU6 7RX, United Kingdom
[ 3 ] [Ding, K.]College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
[ 4 ] [Zhang, P.]College of Standardization, China Jiliang University, Hangzhou, 310018, China
[ 5 ] [Chen, B.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
[ 6 ] [Chen, Z.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
[ 7 ] [Hu, J.]College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
[ 8 ] [Li, H.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China

Reprint 's Address：

[Zhang, P.]College of Standardization, China

Email：

zhang_pengyue@cjlu.edu.cn

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Source ：

Applied Surface Science

ISSN： 0169-4332

Year： 2023

Volume： 614

6 . 3

JCR@2023

6 . 3 0 0

JCR@2023

ESI HC Threshold：49

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count： 3

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 0

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