Boosting charge transfer for α-Fe2O3 semiconductor with the coupling of chiral monolayer
•An easy-to-handle way to boost charge transfer for α-Fe2O3 rods by chiral monolayer.•Photocurrent density amplified up to 4 folds with the coupling of chiral monolayer.•Free charge carrier density enhanced by 61% with the coupling of chiral monolayer.•Charge transfer resistance reduced remarkably w...
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| Veröffentlicht in: | Materials letters 2022-02, Vol.308, p.131130, Article 131130 |
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| creator | Zhang, Wenyan Guan, Hangmin Kuang, Caiyuan Wang, Wei Hu, Yingfei Yang, Xiaoli |
| description | •An easy-to-handle way to boost charge transfer for α-Fe2O3 rods by chiral monolayer.•Photocurrent density amplified up to 4 folds with the coupling of chiral monolayer.•Free charge carrier density enhanced by 61% with the coupling of chiral monolayer.•Charge transfer resistance reduced remarkably with the coupling of chiral monolayer.
α-Fe2O3 is an attractive semiconductor for solar energy conversion because of its narrow band gap, robustness and low cost, while its solar energy conversion efficiency is restricted due to poor electrical conductivity and high charge transfer resistance. In this work, we show an easy-to-handle way to deal with the drawback by coupling α-Fe2O3 rods with chiral monolayer to facilitate charge transportation. It is found that with the coupling of chiral monolayer, charge migration resistance of α-Fe2O3 was remarkably reduced, visible-light-driven photocurrent density was amplified up to 4 folds, and the free charge carrier density was enhanced by 61%. These enhancement could be related to the Chiral Induced Spin Selectivity effect of chiral monolayer on spin alignment of charge carriers. |
| doi_str_mv | 10.1016/j.matlet.2021.131130 |
| format | Article |
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α-Fe2O3 is an attractive semiconductor for solar energy conversion because of its narrow band gap, robustness and low cost, while its solar energy conversion efficiency is restricted due to poor electrical conductivity and high charge transfer resistance. In this work, we show an easy-to-handle way to deal with the drawback by coupling α-Fe2O3 rods with chiral monolayer to facilitate charge transportation. It is found that with the coupling of chiral monolayer, charge migration resistance of α-Fe2O3 was remarkably reduced, visible-light-driven photocurrent density was amplified up to 4 folds, and the free charge carrier density was enhanced by 61%. These enhancement could be related to the Chiral Induced Spin Selectivity effect of chiral monolayer on spin alignment of charge carriers.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2021.131130</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Carrier density ; Charge density ; Charge transfer ; Chirality ; Coupling ; Current carriers ; Electrical properties ; Electrical resistivity ; Energy conversion efficiency ; Ferric oxide ; Materials science ; Monolayers ; Optical materials and properties ; Photoelectric effect ; Photovoltaic cells ; Selectivity ; Solar energy ; Solar energy conversion</subject><ispartof>Materials letters, 2022-02, Vol.308, p.131130, Article 131130</ispartof><rights>2021 Elsevier B.V.</rights><rights>Copyright Elsevier BV Feb 1, 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-7939dd8a462bbb612dd132e06c8662fb89738e9cb8a86815e619e51d7e12af733</citedby><cites>FETCH-LOGICAL-c334t-7939dd8a462bbb612dd132e06c8662fb89738e9cb8a86815e619e51d7e12af733</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0167577X21018280$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids></links><search><creatorcontrib>Zhang, Wenyan</creatorcontrib><creatorcontrib>Guan, Hangmin</creatorcontrib><creatorcontrib>Kuang, Caiyuan</creatorcontrib><creatorcontrib>Wang, Wei</creatorcontrib><creatorcontrib>Hu, Yingfei</creatorcontrib><creatorcontrib>Yang, Xiaoli</creatorcontrib><title>Boosting charge transfer for α-Fe2O3 semiconductor with the coupling of chiral monolayer</title><title>Materials letters</title><description>•An easy-to-handle way to boost charge transfer for α-Fe2O3 rods by chiral monolayer.•Photocurrent density amplified up to 4 folds with the coupling of chiral monolayer.•Free charge carrier density enhanced by 61% with the coupling of chiral monolayer.•Charge transfer resistance reduced remarkably with the coupling of chiral monolayer.
α-Fe2O3 is an attractive semiconductor for solar energy conversion because of its narrow band gap, robustness and low cost, while its solar energy conversion efficiency is restricted due to poor electrical conductivity and high charge transfer resistance. In this work, we show an easy-to-handle way to deal with the drawback by coupling α-Fe2O3 rods with chiral monolayer to facilitate charge transportation. It is found that with the coupling of chiral monolayer, charge migration resistance of α-Fe2O3 was remarkably reduced, visible-light-driven photocurrent density was amplified up to 4 folds, and the free charge carrier density was enhanced by 61%. These enhancement could be related to the Chiral Induced Spin Selectivity effect of chiral monolayer on spin alignment of charge carriers.</description><subject>Carrier density</subject><subject>Charge density</subject><subject>Charge transfer</subject><subject>Chirality</subject><subject>Coupling</subject><subject>Current carriers</subject><subject>Electrical properties</subject><subject>Electrical resistivity</subject><subject>Energy conversion efficiency</subject><subject>Ferric oxide</subject><subject>Materials science</subject><subject>Monolayers</subject><subject>Optical materials and properties</subject><subject>Photoelectric effect</subject><subject>Photovoltaic cells</subject><subject>Selectivity</subject><subject>Solar energy</subject><subject>Solar energy conversion</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKw0AUhgdRsFbfwEXAdepckrlsBC1WBaEbBV0Nk8lJOyHN1Jmp0sfyRXwmU-La1YHD__2H8yF0SfCMYMKv29nGpA7SjGJKZoQRwvARmhApWF4ooY7RZIiJvBTi7RSdxdhijAuFiwl6v_M-JtevMrs2YQVZCqaPDYSs8SH7-c4XQJcsi7Bx1vf1zqZh_eXSOktryKzfbbsD7JuBd8F02cb3vjN7COfopDFdhIu_OUWvi_uX-WP-vHx4mt8-55axIuVCMVXX0hScVlXFCa1rwihgbiXntKmkEkyCspU0kktSAicKSlILINQ0grEpuhp7t8F_7CAm3fpd6IeTmnJaKFkqdUgVY8oGH2OARm-D25iw1wTrg0Td6lGiPkjUo8QBuxkxGD74dBB0tA56C7ULYJOuvfu_4BfKXH0f</recordid><startdate>20220201</startdate><enddate>20220201</enddate><creator>Zhang, Wenyan</creator><creator>Guan, Hangmin</creator><creator>Kuang, Caiyuan</creator><creator>Wang, Wei</creator><creator>Hu, Yingfei</creator><creator>Yang, Xiaoli</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20220201</creationdate><title>Boosting charge transfer for α-Fe2O3 semiconductor with the coupling of chiral monolayer</title><author>Zhang, Wenyan ; Guan, Hangmin ; Kuang, Caiyuan ; Wang, Wei ; Hu, Yingfei ; Yang, Xiaoli</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-7939dd8a462bbb612dd132e06c8662fb89738e9cb8a86815e619e51d7e12af733</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Carrier density</topic><topic>Charge density</topic><topic>Charge transfer</topic><topic>Chirality</topic><topic>Coupling</topic><topic>Current carriers</topic><topic>Electrical properties</topic><topic>Electrical resistivity</topic><topic>Energy conversion efficiency</topic><topic>Ferric oxide</topic><topic>Materials science</topic><topic>Monolayers</topic><topic>Optical materials and properties</topic><topic>Photoelectric effect</topic><topic>Photovoltaic cells</topic><topic>Selectivity</topic><topic>Solar energy</topic><topic>Solar energy conversion</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Wenyan</creatorcontrib><creatorcontrib>Guan, Hangmin</creatorcontrib><creatorcontrib>Kuang, Caiyuan</creatorcontrib><creatorcontrib>Wang, Wei</creatorcontrib><creatorcontrib>Hu, Yingfei</creatorcontrib><creatorcontrib>Yang, Xiaoli</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Wenyan</au><au>Guan, Hangmin</au><au>Kuang, Caiyuan</au><au>Wang, Wei</au><au>Hu, Yingfei</au><au>Yang, Xiaoli</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Boosting charge transfer for α-Fe2O3 semiconductor with the coupling of chiral monolayer</atitle><jtitle>Materials letters</jtitle><date>2022-02-01</date><risdate>2022</risdate><volume>308</volume><spage>131130</spage><pages>131130-</pages><artnum>131130</artnum><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>•An easy-to-handle way to boost charge transfer for α-Fe2O3 rods by chiral monolayer.•Photocurrent density amplified up to 4 folds with the coupling of chiral monolayer.•Free charge carrier density enhanced by 61% with the coupling of chiral monolayer.•Charge transfer resistance reduced remarkably with the coupling of chiral monolayer.
α-Fe2O3 is an attractive semiconductor for solar energy conversion because of its narrow band gap, robustness and low cost, while its solar energy conversion efficiency is restricted due to poor electrical conductivity and high charge transfer resistance. In this work, we show an easy-to-handle way to deal with the drawback by coupling α-Fe2O3 rods with chiral monolayer to facilitate charge transportation. It is found that with the coupling of chiral monolayer, charge migration resistance of α-Fe2O3 was remarkably reduced, visible-light-driven photocurrent density was amplified up to 4 folds, and the free charge carrier density was enhanced by 61%. These enhancement could be related to the Chiral Induced Spin Selectivity effect of chiral monolayer on spin alignment of charge carriers.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2021.131130</doi></addata></record> |
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| subjects | Carrier density Charge density Charge transfer Chirality Coupling Current carriers Electrical properties Electrical resistivity Energy conversion efficiency Ferric oxide Materials science Monolayers Optical materials and properties Photoelectric effect Photovoltaic cells Selectivity Solar energy Solar energy conversion |
| title | Boosting charge transfer for α-Fe2O3 semiconductor with the coupling of chiral monolayer |
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