The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters

Abdulkhaleq Almansaf; Manas R. Parida; Tabot M.D. Besong; Partha Maity; Megalamane Siddaramappa Bootharaju; Osman Bakr; Omar F. Mohammed

doi:10.1016/j.cplett.2017.01.075

The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters

Abdulkhaleq Almansaf, Manas R. Parida, Tabot M.D. Besong, Partha Maity, Megalamane Siddaramappa Bootharaju, Osman Bakr, Omar F. Mohammed

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We explore the impact of Au doping on the charge transfer dynamics between the positively charged porphyrin (TMPyP) and negatively charged silver nanoclusters (Ag29 NCs). Our transient absorption (TA) spectroscopic results demonstrate that the interfacial charge transfer, the intersystem crossing and the triplet state lifetime of porphyrin can be tuned by the doping of Au atoms in Ag29 NCs. Additionally, we found that the electrostatic interaction between the negative charge of the cluster and the positive charge on the TMPyP is the driving force that brings them close to each other for complex formation and subsequently facilitates the transfer process.

Original language	English (US)
Pages (from-to)	393-397
Number of pages	5
Journal	Chemical Physics Letters
Volume	683
DOIs	https://doi.org/10.1016/j.cplett.2017.01.075
State	Published - Feb 4 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by King Abdullah University of Science and Technology (KAUST). Additionally, part of this work was supported by Saudi Arabia Basic Industries Corporation (SABIC) grant RGC/3/2470-01.

Access to Document

10.1016/j.cplett.2017.01.075

https://repository.kaust.edu.sa/bitstream/10754/622849/1/1-s2.0-S000926141730091X-main.pdf

Cite this

@article{ca79db432c474cf8975f41a61d5afe32,

title = "The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters",

abstract = "We explore the impact of Au doping on the charge transfer dynamics between the positively charged porphyrin (TMPyP) and negatively charged silver nanoclusters (Ag29 NCs). Our transient absorption (TA) spectroscopic results demonstrate that the interfacial charge transfer, the intersystem crossing and the triplet state lifetime of porphyrin can be tuned by the doping of Au atoms in Ag29 NCs. Additionally, we found that the electrostatic interaction between the negative charge of the cluster and the positive charge on the TMPyP is the driving force that brings them close to each other for complex formation and subsequently facilitates the transfer process.",

author = "Abdulkhaleq Almansaf and Parida, {Manas R.} and Besong, {Tabot M.D.} and Partha Maity and Bootharaju, {Megalamane Siddaramappa} and Osman Bakr and Mohammed, {Omar F.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by King Abdullah University of Science and Technology (KAUST). Additionally, part of this work was supported by Saudi Arabia Basic Industries Corporation (SABIC) grant RGC/3/2470-01.",

year = "2017",

month = feb,

day = "4",

doi = "10.1016/j.cplett.2017.01.075",

language = "English (US)",

volume = "683",

pages = "393--397",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters

AU - Almansaf, Abdulkhaleq

AU - Parida, Manas R.

AU - Besong, Tabot M.D.

AU - Maity, Partha

AU - Bootharaju, Megalamane Siddaramappa

AU - Bakr, Osman

AU - Mohammed, Omar F.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by King Abdullah University of Science and Technology (KAUST). Additionally, part of this work was supported by Saudi Arabia Basic Industries Corporation (SABIC) grant RGC/3/2470-01.

PY - 2017/2/4

Y1 - 2017/2/4

N2 - We explore the impact of Au doping on the charge transfer dynamics between the positively charged porphyrin (TMPyP) and negatively charged silver nanoclusters (Ag29 NCs). Our transient absorption (TA) spectroscopic results demonstrate that the interfacial charge transfer, the intersystem crossing and the triplet state lifetime of porphyrin can be tuned by the doping of Au atoms in Ag29 NCs. Additionally, we found that the electrostatic interaction between the negative charge of the cluster and the positive charge on the TMPyP is the driving force that brings them close to each other for complex formation and subsequently facilitates the transfer process.

AB - We explore the impact of Au doping on the charge transfer dynamics between the positively charged porphyrin (TMPyP) and negatively charged silver nanoclusters (Ag29 NCs). Our transient absorption (TA) spectroscopic results demonstrate that the interfacial charge transfer, the intersystem crossing and the triplet state lifetime of porphyrin can be tuned by the doping of Au atoms in Ag29 NCs. Additionally, we found that the electrostatic interaction between the negative charge of the cluster and the positive charge on the TMPyP is the driving force that brings them close to each other for complex formation and subsequently facilitates the transfer process.

UR - http://hdl.handle.net/10754/622849

UR - http://www.sciencedirect.com/science/article/pii/S000926141730091X

UR - http://www.scopus.com/inward/record.url?scp=85011977308&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2017.01.075

DO - 10.1016/j.cplett.2017.01.075

M3 - Article

SN - 0009-2614

VL - 683

SP - 393

EP - 397

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this