Projekteja vuodessa
Abstrakti
Fabricating electronic and optoelectronic devices by transferring pre-deposited metal electrodes has attracted considerable attention, owing to the improved device performance. However, the pre-deposited metal electrode typically involves complex fabrication procedures. Here, we introduce our facile electrode fabrication process which is free of lithography, lift-off, and reactive ion etching by directly press-transferring a single-walled carbon nanotube (SWCNT) film. We fabricated Schottky diodes for photodetector applications using dry-transferred SWCNT films as the transparent electrode to increase light absorption in photoactive MoS2 channels. The MoS2 flake vertically stacked with an SWCNT electrode can exhibit excellent photodetection performance with a responsivity of ∼2.01 × 103 A/W and a detectivity of ∼3.2 × 1012 Jones. Additionally, we carried out temperature-dependent current–voltage measurement and Fowler–Nordheim (FN) plot analysis to explore the dominant charge transport mechanism. The enhanced photodetection in the vertical configuration is found to be attributed to the FN tunneling and internal photoemission of charge carriers excited from indium tin oxide across the MoS2 layer. Our study provides a novel concept of using a photoactive MoS2 layer as a tunneling layer itself with a dry-transferred transparent SWCNT electrode for high-performance and energy-efficient optoelectronic devices.
Alkuperäiskieli | Englanti |
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Sivut | 4216-4225 |
Sivumäärä | 10 |
Julkaisu | ACS Applied Materials and Interfaces |
Vuosikerta | 15 |
Numero | 3 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 25 tammik. 2023 |
OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |
Sormenjälki
Sukella tutkimusaiheisiin 'Highly Sensitive MoS2 Photodetectors Enabled with a Dry-Transferred Transparent Carbon Nanotube Electrode'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.-
Strukturoidut piipinnat optista neuromodulaatiota ja visuaalista palautusta varten
01/09/2021 → 31/08/2024
Projekti: Academy of Finland: Other research funding
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Ultrafast Data Production with Broadband Photodetectors for Active Hyperspectral Space Imaging
Sun, Z., Cui, L. & Pajunpää, T.
01/01/2021 → 31/12/2023
Projekti: Academy of Finland: Other research funding
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NOIMO: Mooren lain jatkaminen fotoniikan integroinnissa uusien optisten isolaattoreiden avulla
01/09/2020 → 31/08/2024
Projekti: Academy of Finland: Other research funding
Laitteet
Lehtileikkeet
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Studies from Aalto University Further Understanding of Carbon Nanotubes (Highly Sensitive Mos2 Photodetectors Enabled With a Dry-transferred Transparent Carbon Nanotube Electrode)
Harri Lipsanen, Esko Kauppinen, Zhipei Sun & Mingde Du
06/03/2023
1 kohde/ Medianäkyvyys
Lehdistö/media: Esiintyminen mediassa