Effect of Interface Modification on Mechanoluminescence-Inorganic Perovskite Impact Sensors

It is becoming increasingly important to develop innovative self-powered, low-cost, and flexible sensors with the potential for structural health monitoring (SHM) applications. The mechanoluminescence (ML)-perovskite sensor is a potential candidate that combines the light-emitting principles of mech...

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Main Authors: Lucas Braga Carani, Vincent Obiozo Eze, Okenwa Okoli
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/1/236
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author Lucas Braga Carani
Vincent Obiozo Eze
Okenwa Okoli
author_facet Lucas Braga Carani
Vincent Obiozo Eze
Okenwa Okoli
author_sort Lucas Braga Carani
collection DOAJ
description It is becoming increasingly important to develop innovative self-powered, low-cost, and flexible sensors with the potential for structural health monitoring (SHM) applications. The mechanoluminescence (ML)-perovskite sensor is a potential candidate that combines the light-emitting principles of mechanoluminescence with the light-absorbing properties of perovskite materials. Continuous in-situ SHM with embedded sensors necessitates long-term stability. A highly stable cesium lead bromide photodetector with a carbon-based electrode and a zinc sulfide (ZnS): copper (Cu) ML layer was described in this article. The addition of a magnesium iodide (MgI<sub>2</sub>) interfacial modifier layer between the electron transport layer (ETL) and the Perovskite interface improved the sensor’s performance. Devices with the modified structure outperformed devices without the addition of MgI<sub>2</sub> in terms of response time and impact-sensing applications.
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spelling doaj.art-949bfe3a22db4d628395dd29422341572023-12-02T00:54:33ZengMDPI AGSensors1424-82202022-12-0123123610.3390/s23010236Effect of Interface Modification on Mechanoluminescence-Inorganic Perovskite Impact SensorsLucas Braga Carani0Vincent Obiozo Eze1Okenwa Okoli2High-Performance Materials Institute, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL 32310, USAHigh-Performance Materials Institute, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL 32310, USAHigh-Performance Materials Institute, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL 32310, USAIt is becoming increasingly important to develop innovative self-powered, low-cost, and flexible sensors with the potential for structural health monitoring (SHM) applications. The mechanoluminescence (ML)-perovskite sensor is a potential candidate that combines the light-emitting principles of mechanoluminescence with the light-absorbing properties of perovskite materials. Continuous in-situ SHM with embedded sensors necessitates long-term stability. A highly stable cesium lead bromide photodetector with a carbon-based electrode and a zinc sulfide (ZnS): copper (Cu) ML layer was described in this article. The addition of a magnesium iodide (MgI<sub>2</sub>) interfacial modifier layer between the electron transport layer (ETL) and the Perovskite interface improved the sensor’s performance. Devices with the modified structure outperformed devices without the addition of MgI<sub>2</sub> in terms of response time and impact-sensing applications.https://www.mdpi.com/1424-8220/23/1/236structural health monitoringcompositesmechanoluminescenceinorganic perovskiteinterface modification
spellingShingle Lucas Braga Carani
Vincent Obiozo Eze
Okenwa Okoli
Effect of Interface Modification on Mechanoluminescence-Inorganic Perovskite Impact Sensors
Sensors
structural health monitoring
composites
mechanoluminescence
inorganic perovskite
interface modification
title Effect of Interface Modification on Mechanoluminescence-Inorganic Perovskite Impact Sensors
title_full Effect of Interface Modification on Mechanoluminescence-Inorganic Perovskite Impact Sensors
title_fullStr Effect of Interface Modification on Mechanoluminescence-Inorganic Perovskite Impact Sensors
title_full_unstemmed Effect of Interface Modification on Mechanoluminescence-Inorganic Perovskite Impact Sensors
title_short Effect of Interface Modification on Mechanoluminescence-Inorganic Perovskite Impact Sensors
title_sort effect of interface modification on mechanoluminescence inorganic perovskite impact sensors
topic structural health monitoring
composites
mechanoluminescence
inorganic perovskite
interface modification
url https://www.mdpi.com/1424-8220/23/1/236
work_keys_str_mv AT lucasbragacarani effectofinterfacemodificationonmechanoluminescenceinorganicperovskiteimpactsensors
AT vincentobiozoeze effectofinterfacemodificationonmechanoluminescenceinorganicperovskiteimpactsensors
AT okenwaokoli effectofinterfacemodificationonmechanoluminescenceinorganicperovskiteimpactsensors