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A hybrid photodetector of graphene/TiO 2 /inorganic PbS quantum dots for fast response
Hybrid graphene/quantum dots photodetectors have been obtained up to 10 9 A W −1 ultrahigh responsivity, but the major challenge of these architectures is the slow photoresponse speed, especially the delay time of these configurations is mostly on the second time scale. Herein, we propose a hybrid p...
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| Published in: | Japanese Journal of Applied Physics 2022-04, Vol.61 (4), p.40903 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c90c-50ed628f6592411e80f5f310eba33cffbb90a7b96d6d16cf695457f49bbad1b73 |
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| cites | cdi_FETCH-LOGICAL-c90c-50ed628f6592411e80f5f310eba33cffbb90a7b96d6d16cf695457f49bbad1b73 |
| container_end_page | |
| container_issue | 4 |
| container_start_page | 40903 |
| container_title | Japanese Journal of Applied Physics |
| container_volume | 61 |
| creator | Ge, Bangtong Nie, Changbin Shen, Jun |
| description | Hybrid graphene/quantum dots photodetectors have been obtained up to 10
9
A W
−1
ultrahigh responsivity, but the major challenge of these architectures is the slow photoresponse speed, especially the delay time of these configurations is mostly on the second time scale. Herein, we propose a hybrid photodetector of graphene/TiO
2
films/inorganic PbS quantum dots, which bridge the gap between high sensitivity and fast response time at visible band detection. Under 635 nm light illumination, the device shows a high responsivity of 1.2 × 10
4
A W
−1
, a fast decay time of 35 ms, and a specific detectivity of 1.5 × 10
12
Jones at 1 V bias. The high responsivity is ascribed to the photogating effect, and the major findings hold great promise for application in optoelectronics. |
| doi_str_mv | 10.35848/1347-4065/ac56fc |
| format | article |
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9
A W
−1
ultrahigh responsivity, but the major challenge of these architectures is the slow photoresponse speed, especially the delay time of these configurations is mostly on the second time scale. Herein, we propose a hybrid photodetector of graphene/TiO
2
films/inorganic PbS quantum dots, which bridge the gap between high sensitivity and fast response time at visible band detection. Under 635 nm light illumination, the device shows a high responsivity of 1.2 × 10
4
A W
−1
, a fast decay time of 35 ms, and a specific detectivity of 1.5 × 10
12
Jones at 1 V bias. The high responsivity is ascribed to the photogating effect, and the major findings hold great promise for application in optoelectronics.</description><identifier>ISSN: 0021-4922</identifier><identifier>EISSN: 1347-4065</identifier><identifier>DOI: 10.35848/1347-4065/ac56fc</identifier><language>eng</language><ispartof>Japanese Journal of Applied Physics, 2022-04, Vol.61 (4), p.40903</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c90c-50ed628f6592411e80f5f310eba33cffbb90a7b96d6d16cf695457f49bbad1b73</citedby><cites>FETCH-LOGICAL-c90c-50ed628f6592411e80f5f310eba33cffbb90a7b96d6d16cf695457f49bbad1b73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids></links><search><creatorcontrib>Ge, Bangtong</creatorcontrib><creatorcontrib>Nie, Changbin</creatorcontrib><creatorcontrib>Shen, Jun</creatorcontrib><title>A hybrid photodetector of graphene/TiO 2 /inorganic PbS quantum dots for fast response</title><title>Japanese Journal of Applied Physics</title><description>Hybrid graphene/quantum dots photodetectors have been obtained up to 10
9
A W
−1
ultrahigh responsivity, but the major challenge of these architectures is the slow photoresponse speed, especially the delay time of these configurations is mostly on the second time scale. Herein, we propose a hybrid photodetector of graphene/TiO
2
films/inorganic PbS quantum dots, which bridge the gap between high sensitivity and fast response time at visible band detection. Under 635 nm light illumination, the device shows a high responsivity of 1.2 × 10
4
A W
−1
, a fast decay time of 35 ms, and a specific detectivity of 1.5 × 10
12
Jones at 1 V bias. The high responsivity is ascribed to the photogating effect, and the major findings hold great promise for application in optoelectronics.</description><issn>0021-4922</issn><issn>1347-4065</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNo90MtKw0AUBuBBFIzVB3A3LxAzk7kksyzFGxQqGNyGuZ0mYjNxZrro29tacXX4D_z_4kPonpIHJlreVpTxpuREikpbIcFeoOL_dYkKQmpaclXX1-gmpc9jlILTAn0s8XAwcXR4HkIOzmdvc4g4AN5GPQ9-8lU3bnCNq3EKcaun0eI3846_93rK-x12IScMxwbolHH0aQ5T8rfoCvRX8nd_d4G6p8du9VKuN8-vq-W6tIrYUhDvZN2CFKrmlPqWgABGiTeaMQtgjCK6MUo66ai0IJXgogGujNGOmoYtED3P2hhSih76OY47HQ89Jf2vS39C6E8I_dmF_QCimleI</recordid><startdate>20220401</startdate><enddate>20220401</enddate><creator>Ge, Bangtong</creator><creator>Nie, Changbin</creator><creator>Shen, Jun</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20220401</creationdate><title>A hybrid photodetector of graphene/TiO 2 /inorganic PbS quantum dots for fast response</title><author>Ge, Bangtong ; Nie, Changbin ; Shen, Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c90c-50ed628f6592411e80f5f310eba33cffbb90a7b96d6d16cf695457f49bbad1b73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ge, Bangtong</creatorcontrib><creatorcontrib>Nie, Changbin</creatorcontrib><creatorcontrib>Shen, Jun</creatorcontrib><collection>CrossRef</collection><jtitle>Japanese Journal of Applied Physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ge, Bangtong</au><au>Nie, Changbin</au><au>Shen, Jun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A hybrid photodetector of graphene/TiO 2 /inorganic PbS quantum dots for fast response</atitle><jtitle>Japanese Journal of Applied Physics</jtitle><date>2022-04-01</date><risdate>2022</risdate><volume>61</volume><issue>4</issue><spage>40903</spage><pages>40903-</pages><issn>0021-4922</issn><eissn>1347-4065</eissn><abstract>Hybrid graphene/quantum dots photodetectors have been obtained up to 10
9
A W
−1
ultrahigh responsivity, but the major challenge of these architectures is the slow photoresponse speed, especially the delay time of these configurations is mostly on the second time scale. Herein, we propose a hybrid photodetector of graphene/TiO
2
films/inorganic PbS quantum dots, which bridge the gap between high sensitivity and fast response time at visible band detection. Under 635 nm light illumination, the device shows a high responsivity of 1.2 × 10
4
A W
−1
, a fast decay time of 35 ms, and a specific detectivity of 1.5 × 10
12
Jones at 1 V bias. The high responsivity is ascribed to the photogating effect, and the major findings hold great promise for application in optoelectronics.</abstract><doi>10.35848/1347-4065/ac56fc</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-4922 |
| ispartof | Japanese Journal of Applied Physics, 2022-04, Vol.61 (4), p.40903 |
| issn | 0021-4922 1347-4065 |
| language | eng |
| recordid | cdi_crossref_primary_10_35848_1347_4065_ac56fc |
| source | Institute of Physics IOPscience extra; Institute of Physics |
| title | A hybrid photodetector of graphene/TiO 2 /inorganic PbS quantum dots for fast response |
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