Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism‐Coupled Lateral Si p–n Junction
Abstract Plasmonic hot carriers have garnered considerable attention in photovoltaics and photocatalysis, yet their full potential is limited by the challenge of harvesting both positive and negative polarity hot carriers at the same time. Here, an unprecedented plasmonic hot carrier device capable...
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Wiley
2025-06-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202414654 |
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| author | Yujin Park Jihyang Park Yeonghoon Jin Yujin Roh Hyunhwa Lee Kyoungsik Yu Moonsang Lee Jeong Young Park |
| author_facet | Yujin Park Jihyang Park Yeonghoon Jin Yujin Roh Hyunhwa Lee Kyoungsik Yu Moonsang Lee Jeong Young Park |
| author_sort | Yujin Park |
| collection | DOAJ |
| description | Abstract Plasmonic hot carriers have garnered considerable attention in photovoltaics and photocatalysis, yet their full potential is limited by the challenge of harvesting both positive and negative polarity hot carriers at the same time. Here, an unprecedented plasmonic hot carrier device capable of extracting both types of hot carriers simultaneously is demonstrated. This scheme involves generating and harnessing plasmonic hot electrons and holes concurrently using a lateral Si p–n junction diode coupled to Ag nanoprisms. The experimental and numerical results jointly reveal precise control of the generation and injection of plasmonic hot carriers, stemming from differing injection probabilities of each type of hot carrier into the substrates. It is shown that the bipolar plasmonic photodetector exhibits outstanding performance compared to plasmonic devices utilizing single‐polarity hot carriers, attributed to the simultaneous participation of plasmonic hot carriers in the photoconductivity nature of the diode. It is believed that this strategy of harnessing bipolar hot carriers will pave the way for the rational design of future plasmonic applications by providing significantly improved photoconductivity and flexible utilization of hot carriers. |
| format | Article |
| id | doaj-art-fca962e665c8478db88d6438f7cfd7c9 |
| institution | OA Journals |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-fca962e665c8478db88d6438f7cfd7c92025-08-20T02:36:40ZengWileyAdvanced Science2198-38442025-06-011223n/an/a10.1002/advs.202414654Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism‐Coupled Lateral Si p–n JunctionYujin Park0Jihyang Park1Yeonghoon Jin2Yujin Roh3Hyunhwa Lee4Kyoungsik Yu5Moonsang Lee6Jeong Young Park7Department of ChemistryKorea Advanced Institute of Science and Technology (KAIST)DaejeonYuseong‐Gu34141Republic of KoreaDepartment of Materials Science and EngineeringInha University100 Inha‐ro, IncheonMichuhol‐Gu22212Republic of KoreaSchool of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)DaejeonYuseong‐Gu34141Republic of KoreaDepartment of ChemistryKorea Advanced Institute of Science and Technology (KAIST)DaejeonYuseong‐Gu34141Republic of KoreaDepartment of ChemistryKorea Advanced Institute of Science and Technology (KAIST)DaejeonYuseong‐Gu34141Republic of KoreaSchool of Electrical EngineeringKorea Advanced Institute of Science and Technology (KAIST)DaejeonYuseong‐Gu34141Republic of KoreaDepartment of Materials Science and EngineeringInha University100 Inha‐ro, IncheonMichuhol‐Gu22212Republic of KoreaDepartment of ChemistryKorea Advanced Institute of Science and Technology (KAIST)DaejeonYuseong‐Gu34141Republic of KoreaAbstract Plasmonic hot carriers have garnered considerable attention in photovoltaics and photocatalysis, yet their full potential is limited by the challenge of harvesting both positive and negative polarity hot carriers at the same time. Here, an unprecedented plasmonic hot carrier device capable of extracting both types of hot carriers simultaneously is demonstrated. This scheme involves generating and harnessing plasmonic hot electrons and holes concurrently using a lateral Si p–n junction diode coupled to Ag nanoprisms. The experimental and numerical results jointly reveal precise control of the generation and injection of plasmonic hot carriers, stemming from differing injection probabilities of each type of hot carrier into the substrates. It is shown that the bipolar plasmonic photodetector exhibits outstanding performance compared to plasmonic devices utilizing single‐polarity hot carriers, attributed to the simultaneous participation of plasmonic hot carriers in the photoconductivity nature of the diode. It is believed that this strategy of harnessing bipolar hot carriers will pave the way for the rational design of future plasmonic applications by providing significantly improved photoconductivity and flexible utilization of hot carriers.https://doi.org/10.1002/advs.202414654Ag nanoprismhot electronshot holeslocalized surface plasmon resonanceplasmonic photodetector |
| spellingShingle | Yujin Park Jihyang Park Yeonghoon Jin Yujin Roh Hyunhwa Lee Kyoungsik Yu Moonsang Lee Jeong Young Park Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism‐Coupled Lateral Si p–n Junction Advanced Science Ag nanoprism hot electrons hot holes localized surface plasmon resonance plasmonic photodetector |
| title | Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism‐Coupled Lateral Si p–n Junction |
| title_full | Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism‐Coupled Lateral Si p–n Junction |
| title_fullStr | Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism‐Coupled Lateral Si p–n Junction |
| title_full_unstemmed | Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism‐Coupled Lateral Si p–n Junction |
| title_short | Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism‐Coupled Lateral Si p–n Junction |
| title_sort | simultaneous harvesting of bipolar plasmonic hot carriers for boosting photoconductivity in ag nanoprism coupled lateral si p n junction |
| topic | Ag nanoprism hot electrons hot holes localized surface plasmon resonance plasmonic photodetector |
| url | https://doi.org/10.1002/advs.202414654 |
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