Solution-processed photodetectors incorporating liquid-phase-exfoliated transition metal dichalcogenide nanosheets are widely reported. However, previous studies mainly focus on the fabrication of photoconductors, rather than photodiodes which tend to be based on heterojunctions and are harder to fabricate. Especially, there are rare reports on introducing commonly used transport layers into heterojunctions based on nanosheet networks. In this study, a reliable solution-processing method is reported to fabricate heterojunction diodes with tungsten selenide (WSe2) nanosheets as the optical absorbing material and PEDOT: PSS and ZnO as injection/transport-layer materials. By varying the transport layer combinations, the obtained heterojunctions show rectification ratios of up to approximate to 10(4) at +/- 1 V in the dark, without relying on heavily doped silicon substrates. Upon illumination, the heterojunction can be operated in both photoconductor and photodiode modes and displays self-powered behaviors at zero bias.
机构:
Jozef Stefan Inst, Dept Complex Matter, Jamova 39, Ljubljana 1000, Slovenia
Jozef Stefan Int Postgrad Sch, Jamova 39, Ljubljana 1000, SloveniaTrinity Coll Dublin, CRANN Res Ctr, Dublin 2, Ireland
机构:
Jozef Stefan Inst, Dept Complex Matter, Jamova 39, Ljubljana 1000, Slovenia
Jozef Stefan Int Postgrad Sch, Jamova 39, Ljubljana 1000, SloveniaTrinity Coll Dublin, CRANN Res Ctr, Dublin 2, Ireland
机构:
BeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Ist Italiano Tecnol, Graphene Labs, Via Moreogo 30, I-16163 Genoa, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Bellani, Sebastiano
Bartolotta, Antonino
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CNR IPCF, Ist & Proc Chim Fis, Via Stagno Dalcontres 37, I-98158 Messina, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Bartolotta, Antonino
Agresti, Antonio
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Univ Roma Tor Vergata, CHOSE Ctr Hybrid & Organ Solar Energy, Via Politecnico 1, I-00133 Rome, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Agresti, Antonio
Calogero, Giuseppe
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CNR IPCF, Ist & Proc Chim Fis, Via Stagno Dalcontres 37, I-98158 Messina, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Calogero, Giuseppe
Grancini, Giulia
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Univ Pavia, Via Taramelli 16, I-27100 Pavia, Italy
INSTM, Via Taramelli 16, I-27100 Pavia, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Grancini, Giulia
Di Carlo, Aldo
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机构:
Univ Roma Tor Vergata, CHOSE Ctr Hybrid & Organ Solar Energy, Via Politecnico 1, I-00133 Rome, Italy
Natl Univ Sci & Technol MISiS, LASE Lab Adv Solar Energy, Leninskiy Prosect 6, Moscow 119049, RussiaBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Di Carlo, Aldo
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Kymakis, Emmanuel
Bonaccorso, Francesco
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机构:
BeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Ist Italiano Tecnol, Graphene Labs, Via Moreogo 30, I-16163 Genoa, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
机构:
Jozef Stefan Inst, Dept Complex Matter, Jamova 39, Ljubljana 1000, Slovenia
Jozef Stefan Int Postgrad Sch, Jamova 39, Ljubljana 1000, SloveniaTrinity Coll Dublin, CRANN Res Ctr, Dublin 2, Ireland
机构:
Jozef Stefan Inst, Dept Complex Matter, Jamova 39, Ljubljana 1000, Slovenia
Jozef Stefan Int Postgrad Sch, Jamova 39, Ljubljana 1000, SloveniaTrinity Coll Dublin, CRANN Res Ctr, Dublin 2, Ireland
机构:
BeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Ist Italiano Tecnol, Graphene Labs, Via Moreogo 30, I-16163 Genoa, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Bellani, Sebastiano
Bartolotta, Antonino
论文数: 0引用数: 0
h-index: 0
机构:
CNR IPCF, Ist & Proc Chim Fis, Via Stagno Dalcontres 37, I-98158 Messina, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Bartolotta, Antonino
Agresti, Antonio
论文数: 0引用数: 0
h-index: 0
机构:
Univ Roma Tor Vergata, CHOSE Ctr Hybrid & Organ Solar Energy, Via Politecnico 1, I-00133 Rome, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Agresti, Antonio
Calogero, Giuseppe
论文数: 0引用数: 0
h-index: 0
机构:
CNR IPCF, Ist & Proc Chim Fis, Via Stagno Dalcontres 37, I-98158 Messina, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Calogero, Giuseppe
Grancini, Giulia
论文数: 0引用数: 0
h-index: 0
机构:
Univ Pavia, Via Taramelli 16, I-27100 Pavia, Italy
INSTM, Via Taramelli 16, I-27100 Pavia, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Grancini, Giulia
Di Carlo, Aldo
论文数: 0引用数: 0
h-index: 0
机构:
Univ Roma Tor Vergata, CHOSE Ctr Hybrid & Organ Solar Energy, Via Politecnico 1, I-00133 Rome, Italy
Natl Univ Sci & Technol MISiS, LASE Lab Adv Solar Energy, Leninskiy Prosect 6, Moscow 119049, RussiaBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Di Carlo, Aldo
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机构:
Kymakis, Emmanuel
Bonaccorso, Francesco
论文数: 0引用数: 0
h-index: 0
机构:
BeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy
Ist Italiano Tecnol, Graphene Labs, Via Moreogo 30, I-16163 Genoa, ItalyBeDimens SpA, Via Lungotorrente Secca 30R, I-16163 Genoa, Italy