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Efficient and Layer‐Dependent Exciton Pumping across Atomically Thin Organic–Inorganic Type‐I Heterostructures

The fundamental light–matter interactions in monolayer transition metal dichalcogenides might be significantly engineered by hybridization with their organic counterparts, enabling intriguing optoelectronic applications. Here, atomically thin organic–inorganic (O–I) heterostructures, comprising mono... Full description

Journal Title: Advanced Materials October 2018, Vol.30(40), pp.n/a-n/a
Main Author: Zhang, Linglong
Other Authors: Sharma, Ankur , Zhu, Yi , Zhang, Yuhan , Wang, Bowen , Dong, Miheng , Nguyen, Hieu T. , Wang, Zhu , Wen, Bo , Cao, Yujie , Liu, Boqing , Sun, Xueqian , Yang, Jiong , Li, Ziyuan , Kar, Arara , Shi, Yi , Macdonald, Daniel , Yu, Zongfu , Wang, Xinran , Lu, Yuerui
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ID: ISSN: 0935-9648 ; E-ISSN: 1521-4095 ; DOI: 10.1002/adma.201803986
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recordid: wj10.1002/adma.201803986
title: Efficient and Layer‐Dependent Exciton Pumping across Atomically Thin Organic–Inorganic Type‐I Heterostructures
format: Article
creator:
  • Zhang, Linglong
  • Sharma, Ankur
  • Zhu, Yi
  • Zhang, Yuhan
  • Wang, Bowen
  • Dong, Miheng
  • Nguyen, Hieu T.
  • Wang, Zhu
  • Wen, Bo
  • Cao, Yujie
  • Liu, Boqing
  • Sun, Xueqian
  • Yang, Jiong
  • Li, Ziyuan
  • Kar, Arara
  • Shi, Yi
  • Macdonald, Daniel
  • Yu, Zongfu
  • Wang, Xinran
  • Lu, Yuerui
subjects:
  • 2d Materials
  • Binding Energy
  • Exciton Pumping
  • Organic–Inorganic
  • Type‐I Heterostructures
ispartof: Advanced Materials, October 2018, Vol.30(40), pp.n/a-n/a
description: The fundamental light–matter interactions in monolayer transition metal dichalcogenides might be significantly engineered by hybridization with their organic counterparts, enabling intriguing optoelectronic applications. Here, atomically thin organic–inorganic (O–I) heterostructures, comprising monolayer MoSe and mono‐/few‐layer single‐crystal pentacene samples, are fabricated. These heterostructures show type‐I band alignments, allowing efficient and layer‐dependent exciton pumping across the O–I interfaces. The interfacial exciton pumping has much higher efficiency (>86 times) than the photoexcitation process in MoSe, although the pentacene layer has much lower optical absorption than MoSe. This highly enhanced pumping efficiency is attributed to the high quantum yield in pentacene and the ultrafast energy transfer between the O–I interface. Furthermore, those organic counterparts significantly modulate the bindings of charged excitons in monolayer MoSe via their precise dielectric environment engineering. The results open new avenues for exploring fundamental phenomena and novel optoelectronic applications using atomically thin O–I heterostructures. are fabricated, which comprise monolayer MoSe and 2D limit pentacene. The heterostructures are observed to be of type‐I band alignment, showing efficient and layer‐dependent exciton pumping. In addition, substrate‐related and pentacene‐layer‐dependent modulation of the trion binding energies in monolayer transition metal dichalcogenides is also demonstrated.
language:
source:
identifier: ISSN: 0935-9648 ; E-ISSN: 1521-4095 ; DOI: 10.1002/adma.201803986
fulltext: fulltext
issn:
  • 0935-9648
  • 09359648
  • 1521-4095
  • 15214095
url: Link


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titleEfficient and Layer‐Dependent Exciton Pumping across Atomically Thin Organic–Inorganic Type‐I Heterostructures
creatorZhang, Linglong ; Sharma, Ankur ; Zhu, Yi ; Zhang, Yuhan ; Wang, Bowen ; Dong, Miheng ; Nguyen, Hieu T. ; Wang, Zhu ; Wen, Bo ; Cao, Yujie ; Liu, Boqing ; Sun, Xueqian ; Yang, Jiong ; Li, Ziyuan ; Kar, Arara ; Shi, Yi ; Macdonald, Daniel ; Yu, Zongfu ; Wang, Xinran ; Lu, Yuerui
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subject2d Materials ; Binding Energy ; Exciton Pumping ; Organic–Inorganic ; Type‐I Heterostructures
descriptionThe fundamental light–matter interactions in monolayer transition metal dichalcogenides might be significantly engineered by hybridization with their organic counterparts, enabling intriguing optoelectronic applications. Here, atomically thin organic–inorganic (O–I) heterostructures, comprising monolayer MoSe and mono‐/few‐layer single‐crystal pentacene samples, are fabricated. These heterostructures show type‐I band alignments, allowing efficient and layer‐dependent exciton pumping across the O–I interfaces. The interfacial exciton pumping has much higher efficiency (>86 times) than the photoexcitation process in MoSe, although the pentacene layer has much lower optical absorption than MoSe. This highly enhanced pumping efficiency is attributed to the high quantum yield in pentacene and the ultrafast energy transfer between the O–I interface. Furthermore, those organic counterparts significantly modulate the bindings of charged excitons in monolayer MoSe via their precise dielectric environment engineering. The results open new avenues for exploring fundamental phenomena and novel optoelectronic applications using atomically thin O–I heterostructures. are fabricated, which comprise monolayer MoSe and 2D limit pentacene. The heterostructures are observed to be of type‐I band alignment, showing efficient and layer‐dependent exciton pumping. In addition, substrate‐related and pentacene‐layer‐dependent modulation of the trion binding energies in monolayer transition metal dichalcogenides is also demonstrated.
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titleEfficient and Layer‐Dependent Exciton Pumping across Atomically Thin Organic–Inorganic Type‐I Heterostructures
descriptionThe fundamental light–matter interactions in monolayer transition metal dichalcogenides might be significantly engineered by hybridization with their organic counterparts, enabling intriguing optoelectronic applications. Here, atomically thin organic–inorganic (O–I) heterostructures, comprising monolayer MoSe and mono‐/few‐layer single‐crystal pentacene samples, are fabricated. These heterostructures show type‐I band alignments, allowing efficient and layer‐dependent exciton pumping across the O–I interfaces. The interfacial exciton pumping has much higher efficiency (>86 times) than the photoexcitation process in MoSe, although the pentacene layer has much lower optical absorption than MoSe. This highly enhanced pumping efficiency is attributed to the high quantum yield in pentacene and the ultrafast energy transfer between the O–I interface. Furthermore, those organic counterparts significantly modulate the bindings of charged excitons in monolayer MoSe via their precise dielectric environment engineering. The results open new avenues for exploring fundamental phenomena and novel optoelectronic applications using atomically thin O–I heterostructures. are fabricated, which comprise monolayer MoSe and 2D limit pentacene. The heterostructures are observed to be of type‐I band alignment, showing efficient and layer‐dependent exciton pumping. In addition, substrate‐related and pentacene‐layer‐dependent modulation of the trion binding energies in monolayer transition metal dichalcogenides is also demonstrated.
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02d Materials
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titleEfficient and Layer‐Dependent Exciton Pumping across Atomically Thin Organic–Inorganic Type‐I Heterostructures
authorZhang, Linglong ; Sharma, Ankur ; Zhu, Yi ; Zhang, Yuhan ; Wang, Bowen ; Dong, Miheng ; Nguyen, Hieu T. ; Wang, Zhu ; Wen, Bo ; Cao, Yujie ; Liu, Boqing ; Sun, Xueqian ; Yang, Jiong ; Li, Ziyuan ; Kar, Arara ; Shi, Yi ; Macdonald, Daniel ; Yu, Zongfu ; Wang, Xinran ; Lu, Yuerui
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abstractThe fundamental light–matter interactions in monolayer transition metal dichalcogenides might be significantly engineered by hybridization with their organic counterparts, enabling intriguing optoelectronic applications. Here, atomically thin organic–inorganic (O–I) heterostructures, comprising monolayer MoSe and mono‐/few‐layer single‐crystal pentacene samples, are fabricated. These heterostructures show type‐I band alignments, allowing efficient and layer‐dependent exciton pumping across the O–I interfaces. The interfacial exciton pumping has much higher efficiency (>86 times) than the photoexcitation process in MoSe, although the pentacene layer has much lower optical absorption than MoSe. This highly enhanced pumping efficiency is attributed to the high quantum yield in pentacene and the ultrafast energy transfer between the O–I interface. Furthermore, those organic counterparts significantly modulate the bindings of charged excitons in monolayer MoSe via their precise dielectric environment engineering. The results open new avenues for exploring fundamental phenomena and novel optoelectronic applications using atomically thin O–I heterostructures. are fabricated, which comprise monolayer MoSe and 2D limit pentacene. The heterostructures are observed to be of type‐I band alignment, showing efficient and layer‐dependent exciton pumping. In addition, substrate‐related and pentacene‐layer‐dependent modulation of the trion binding energies in monolayer transition metal dichalcogenides is also demonstrated.
doi10.1002/adma.201803986
pages1-8
date2018-10