On the chemically-assisted excitonic enhancement in environmentally-friendly solution dispersions of two-dimensional MoS2 and WS2
Current rectifying p-n junction devices are demonstrated from solution exfoliated two-dimensional (2D) molybdenum disulfide (MoS 2 ), and excitonic effects are elucidated for solution dispersions of not only MoS 2 , but also another refractory 2D sulfide, tungsten disulfide (WS 2 ). The excitonic en...
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| Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2017, Vol.5 (22), p.5323-5333 |
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| container_title | Journal of materials chemistry. C, Materials for optical and electronic devices |
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| creator | Fadil, Dalal Hossain, Ridwan F Saenz, Gustavo A Kaul, Anupama B |
| description | Current rectifying p-n junction devices are demonstrated from solution exfoliated two-dimensional (2D) molybdenum disulfide (MoS
2
), and excitonic effects are elucidated for solution dispersions of not only MoS
2
, but also another refractory 2D sulfide, tungsten disulfide (WS
2
). The excitonic enhancement effects are correlated to new solution chemistries using environmentally friendly terpineol. The role of sonication time and centrifugation are analyzed in the presence of terpineol with isopropyl alcohol and surfactant ethyl cellulose, where the red-shift in the excitonic peaks is correlated to the size distribution of the nanoparticles using optical interferometry. This was correlated to the data obtained using photoluminescence, Raman spectroscopy, scanning electron microscopy and particle size analysis which also yielded results that were consistent with this finding. The terpineol dispersion exhibits the least red-shift of 5 meV from the top to the bottom of the vial, in contrast to non-terpineol dispersions where the red-shift is calculated to be as high as 90 meV, indicating terpineol's effectiveness in exfoliating a larger population of mono-to few-layer nanomembranes. Analysis of the optical absorption spectra allows for the extraction of the energy band gap for MoS
2
and WS
2
. These results clearly show evidence of quantum confinement effects in solution dispersions of chemically exfoliated 2D MoS
2
and WS
2
which can be harnessed for a wide variety of optoelectronic devices that are amenable to scalable and high-throughput synthesis routes, using environmentally friendly solution chemistries.
Terpineol leads to effective exfoliation and excitonic enhancement in solution dispersions of MoS
2
and WS
2
, which also yields enhancement in electronic transport properties. Such dispersions are amenable to high-performance electronic and opto-electronic devices using manufacturable routes. |
| doi_str_mv | 10.1039/c7tc01001j |
| format | Article |
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2
), and excitonic effects are elucidated for solution dispersions of not only MoS
2
, but also another refractory 2D sulfide, tungsten disulfide (WS
2
). The excitonic enhancement effects are correlated to new solution chemistries using environmentally friendly terpineol. The role of sonication time and centrifugation are analyzed in the presence of terpineol with isopropyl alcohol and surfactant ethyl cellulose, where the red-shift in the excitonic peaks is correlated to the size distribution of the nanoparticles using optical interferometry. This was correlated to the data obtained using photoluminescence, Raman spectroscopy, scanning electron microscopy and particle size analysis which also yielded results that were consistent with this finding. The terpineol dispersion exhibits the least red-shift of 5 meV from the top to the bottom of the vial, in contrast to non-terpineol dispersions where the red-shift is calculated to be as high as 90 meV, indicating terpineol's effectiveness in exfoliating a larger population of mono-to few-layer nanomembranes. Analysis of the optical absorption spectra allows for the extraction of the energy band gap for MoS
2
and WS
2
. These results clearly show evidence of quantum confinement effects in solution dispersions of chemically exfoliated 2D MoS
2
and WS
2
which can be harnessed for a wide variety of optoelectronic devices that are amenable to scalable and high-throughput synthesis routes, using environmentally friendly solution chemistries.
Terpineol leads to effective exfoliation and excitonic enhancement in solution dispersions of MoS
2
and WS
2
, which also yields enhancement in electronic transport properties. Such dispersions are amenable to high-performance electronic and opto-electronic devices using manufacturable routes.</description><identifier>ISSN: 2050-7526</identifier><identifier>EISSN: 2050-7534</identifier><identifier>DOI: 10.1039/c7tc01001j</identifier><language>eng</language><subject>Correlation analysis ; Devices ; Dispersions ; Molybdenum disulfide ; Nanostructure ; Optoelectronic devices ; Terpineol ; Tungsten disulphide</subject><ispartof>Journal of materials chemistry. C, Materials for optical and electronic devices, 2017, Vol.5 (22), p.5323-5333</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4014,27914,27915,27916</link.rule.ids></links><search><creatorcontrib>Fadil, Dalal</creatorcontrib><creatorcontrib>Hossain, Ridwan F</creatorcontrib><creatorcontrib>Saenz, Gustavo A</creatorcontrib><creatorcontrib>Kaul, Anupama B</creatorcontrib><title>On the chemically-assisted excitonic enhancement in environmentally-friendly solution dispersions of two-dimensional MoS2 and WS2</title><title>Journal of materials chemistry. C, Materials for optical and electronic devices</title><description>Current rectifying p-n junction devices are demonstrated from solution exfoliated two-dimensional (2D) molybdenum disulfide (MoS
2
), and excitonic effects are elucidated for solution dispersions of not only MoS
2
, but also another refractory 2D sulfide, tungsten disulfide (WS
2
). The excitonic enhancement effects are correlated to new solution chemistries using environmentally friendly terpineol. The role of sonication time and centrifugation are analyzed in the presence of terpineol with isopropyl alcohol and surfactant ethyl cellulose, where the red-shift in the excitonic peaks is correlated to the size distribution of the nanoparticles using optical interferometry. This was correlated to the data obtained using photoluminescence, Raman spectroscopy, scanning electron microscopy and particle size analysis which also yielded results that were consistent with this finding. The terpineol dispersion exhibits the least red-shift of 5 meV from the top to the bottom of the vial, in contrast to non-terpineol dispersions where the red-shift is calculated to be as high as 90 meV, indicating terpineol's effectiveness in exfoliating a larger population of mono-to few-layer nanomembranes. Analysis of the optical absorption spectra allows for the extraction of the energy band gap for MoS
2
and WS
2
. These results clearly show evidence of quantum confinement effects in solution dispersions of chemically exfoliated 2D MoS
2
and WS
2
which can be harnessed for a wide variety of optoelectronic devices that are amenable to scalable and high-throughput synthesis routes, using environmentally friendly solution chemistries.
Terpineol leads to effective exfoliation and excitonic enhancement in solution dispersions of MoS
2
and WS
2
, which also yields enhancement in electronic transport properties. Such dispersions are amenable to high-performance electronic and opto-electronic devices using manufacturable routes.</description><subject>Correlation analysis</subject><subject>Devices</subject><subject>Dispersions</subject><subject>Molybdenum disulfide</subject><subject>Nanostructure</subject><subject>Optoelectronic devices</subject><subject>Terpineol</subject><subject>Tungsten disulphide</subject><issn>2050-7526</issn><issn>2050-7534</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kL1PwzAQxSMEElXpwo5kNpaAP-IkHlHFl1TUoSDGyLHP1JVjl9gFOvKfkwKCjVvee6ffveGy7Jjgc4KZuFBVUphgTFZ72YhijvOKs2L_19PyMJvEuMLD1KSsSzHKPuYepSUgtYTOKuncNpcx2phAI3hXNgVvFQK_lF5BBz4h64f4avvgd_HrwvQWvHZbFIPbJBs80jauoY-DjSgYlN5Cru3A7zbSofuwoEh6jZ4W9Cg7MNJFmPzoOHu8vnqY3uaz-c3d9HKWP9OKp1xVuiCyoEy3XFJtiFG0EEJBwaDVojCiVEBo3apCqLpmmBuFjWyhlUA4BTbOzr5713142UBMTWejAuekh7CJDRGEM8oYFwN6-o32UTXr3nay3zZ_323W2gzMyX8M-wQn2Xy6</recordid><startdate>2017</startdate><enddate>2017</enddate><creator>Fadil, Dalal</creator><creator>Hossain, Ridwan F</creator><creator>Saenz, Gustavo A</creator><creator>Kaul, Anupama B</creator><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>2017</creationdate><title>On the chemically-assisted excitonic enhancement in environmentally-friendly solution dispersions of two-dimensional MoS2 and WS2</title><author>Fadil, Dalal ; Hossain, Ridwan F ; Saenz, Gustavo A ; Kaul, Anupama B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g275t-c7d41a423db5a2df1fc2499ce43ebd94f96ce128bc49c88305fc0fabebae152e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Correlation analysis</topic><topic>Devices</topic><topic>Dispersions</topic><topic>Molybdenum disulfide</topic><topic>Nanostructure</topic><topic>Optoelectronic devices</topic><topic>Terpineol</topic><topic>Tungsten disulphide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fadil, Dalal</creatorcontrib><creatorcontrib>Hossain, Ridwan F</creatorcontrib><creatorcontrib>Saenz, Gustavo A</creatorcontrib><creatorcontrib>Kaul, Anupama B</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fadil, Dalal</au><au>Hossain, Ridwan F</au><au>Saenz, Gustavo A</au><au>Kaul, Anupama B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the chemically-assisted excitonic enhancement in environmentally-friendly solution dispersions of two-dimensional MoS2 and WS2</atitle><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle><date>2017</date><risdate>2017</risdate><volume>5</volume><issue>22</issue><spage>5323</spage><epage>5333</epage><pages>5323-5333</pages><issn>2050-7526</issn><eissn>2050-7534</eissn><abstract>Current rectifying p-n junction devices are demonstrated from solution exfoliated two-dimensional (2D) molybdenum disulfide (MoS
2
), and excitonic effects are elucidated for solution dispersions of not only MoS
2
, but also another refractory 2D sulfide, tungsten disulfide (WS
2
). The excitonic enhancement effects are correlated to new solution chemistries using environmentally friendly terpineol. The role of sonication time and centrifugation are analyzed in the presence of terpineol with isopropyl alcohol and surfactant ethyl cellulose, where the red-shift in the excitonic peaks is correlated to the size distribution of the nanoparticles using optical interferometry. This was correlated to the data obtained using photoluminescence, Raman spectroscopy, scanning electron microscopy and particle size analysis which also yielded results that were consistent with this finding. The terpineol dispersion exhibits the least red-shift of 5 meV from the top to the bottom of the vial, in contrast to non-terpineol dispersions where the red-shift is calculated to be as high as 90 meV, indicating terpineol's effectiveness in exfoliating a larger population of mono-to few-layer nanomembranes. Analysis of the optical absorption spectra allows for the extraction of the energy band gap for MoS
2
and WS
2
. These results clearly show evidence of quantum confinement effects in solution dispersions of chemically exfoliated 2D MoS
2
and WS
2
which can be harnessed for a wide variety of optoelectronic devices that are amenable to scalable and high-throughput synthesis routes, using environmentally friendly solution chemistries.
Terpineol leads to effective exfoliation and excitonic enhancement in solution dispersions of MoS
2
and WS
2
, which also yields enhancement in electronic transport properties. Such dispersions are amenable to high-performance electronic and opto-electronic devices using manufacturable routes.</abstract><doi>10.1039/c7tc01001j</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2050-7526 |
| ispartof | Journal of materials chemistry. C, Materials for optical and electronic devices, 2017, Vol.5 (22), p.5323-5333 |
| issn | 2050-7526 2050-7534 |
| language | eng |
| recordid | cdi_rsc_primary_c7tc01001j |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Correlation analysis Devices Dispersions Molybdenum disulfide Nanostructure Optoelectronic devices Terpineol Tungsten disulphide |
| title | On the chemically-assisted excitonic enhancement in environmentally-friendly solution dispersions of two-dimensional MoS2 and WS2 |
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