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'Solar-blind' 2D heterostructure delivers 422-fold responsivity gain for UV sensing

Phys · · 600 words · By Eng Tuan Poh
Optoelectronics 2D Materials Research UV Sensing Technology

Researchers have developed a 2D heterostructure combining manganese thiophosphate (MnPS3) and WS2 to create a UV sensor with significantly improved responsivity and detectivity. The study utilized microbeam laser characterization to analyze photocarrier dynamics across the material interface.

open_in_new Read the original article: https://phys.org/news/2026-05-solar-2d-heterostructure-responsivity-gain.html

analyticsAnalysis

10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

psychologyDetected Techniques

warning
Loaded Language 70% confidence
Using words with strong emotional connotations to influence an audience.

fact_checkFact-Check Results

9 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

info Single Source 7
verified Verified 1
help Insufficient Evidence 1
info
“In a recent study published in ACS Applied Electronic Materials, a team of researchers led by Haizhao Zhi and Eng Tuan Poh introduced a series of wide bandgap 2D materials—transition metal thio(seleno)phosphates”
SINGLE SOURCE
The provided web search results mention Haizhao Zhi and ACS publications, but none of the results confirm the specific study introducing wide bandgap 2D transition metal thio(seleno)phosphates led by Zhi and Poh.
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web search NEUTRAL — Haizhao Zhi. Lyra geometry is a conformal geometry that originated from Weyl geometry. In this article, we derive the exterior field equation under a spherically symmetric gauge function x⁰(r) and met…
https://www.researchgate.net/profile/Haizhao-Zhi
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web search NEUTRAL — J. Wilson and A. Yoffe, The transition metal dichalcogenides discussion and...
https://www.tandfonline.com/doi/abs/10.1080/0001873690010130…
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web search NEUTRAL — ...Using the Hybrid Evaporation/Spin-Coating Route: An In Situ XRD Study.”
https://pubs.acs.org/doi/10.1021/acsaem.3c00698
info
“manganese thiophosphate (MnPS3), a wide-bandgap semiconductor that is naturally "solar-blind," meaning it is highly sensitive to UV light while remaining transparent to much of the visible spectrum.”
SINGLE SOURCE
The evidence provided for this claim consists of irrelevant search results about Japanese bakeries and medical equipment; there is no scientific evidence provided regarding MnPS3.
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web search NEUTRAL — and RU-（アンドルー）は、地元の素材を使った焼き菓子の小さなお店です。 これまでお菓子の製造･移動販売を行う中で､お客様をはじめ､ご近所や地元の生産者様など素敵なご縁に恵まれました｡ 当店のお菓子には､そんな方々への感謝が詰まっています｡
https://naos.company/andru/
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web search NEUTRAL — Feb 17, 2017 · マンモグラフィは，高度な撮影技術を要するデリケートな検査であることを念頭に置き，操作される方にも確実かつ安全に扱っていただけるよう，日本語で見やすい画面や人間工学の視点に基づいた操作スイッチを実現した。
https://www.jstage.jst.go.jp/article/jjabcs/17/2/17_2_127/_a…
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web search NEUTRAL — 「廻潤meguru-ru（メグルール）」はサラシア由来サラシノールを配合した機能性表示食品（届出番号：I167）。 ブルーベリー×リンゴ×レモン味のスティックゼリー。 1日1本。 エフマで購入できます。
https://efma.jp/?pid=183010916
info
“the researchers engineered a van der Waals heterojunction by stacking monolayer WS2 (a more conductive semiconductor with a narrower bandgap) upon multilayer MnPS3.”
SINGLE SOURCE
While general evidence confirms the existence of van der Waals heterostructures and MnPS3, no specific source provided confirms the exact engineering of a monolayer WS2 on multilayer MnPS3 as described in the claim.
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web search NEUTRAL — Thin van der Waals (vdW) layered magnetic materials disclose the possibility to realize vdW heterostructures with new functionalities.
https://www.researchgate.net/publication/344127480_Antisymme…
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web search NEUTRAL — Recently, the 2D van der Waals (vdW)-layered magnetic materials of one-atom-thick monolayers are emerging with various ferromagnetic material families, such as Cr2Ge2Te6,2–42. C. Gong et al., “Discove…
https://aip.scitation.org/doi/10.1063/1.5112130
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web search NEUTRAL — We propose a strategy of stacking MoS2 monolayers to obtain wafer-scale high-quality multilayer (ML) MoS2 films with a weak interlayer coupling.High-performance optoelectronic devices based on van der…
https://www.sciopen.com/article/10.1007/s12274-022-4280-z?is…
info
“By integrating these two materials, the team observed a 422-fold increase in responsivity and a 129-fold improvement in detectivity compared to the pristine MnPS3 device.”
SINGLE SOURCE
One web search result ('Solar-blind' 2D heterostructure delivers 422-fold responsivity gain...) explicitly mentions the 422-fold responsivity gain, but the other provided results are irrelevant (Windows Explorer, minor planets). Since only one relevant source confirms the specific numbers, it is marked as single_source.
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wikipedia NEUTRAL — The following is a partial list of minor planets, running from minor-planet number 32001 through 33000, inclusive. The primary data for this and other partial lists is based on JPL's "Small-Body Orbit…
https://en.wikipedia.org/wiki/List_of_minor_planets:_32001–3…
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wikipedia NEUTRAL — The following is a list of numbered minor planets discovered, co-discovered and re-discovered by the Wide-field Infrared Survey Explorer (WISE), a NASA infrared spaceborne observatory. As of July 2018…
https://en.wikipedia.org/wiki/List_of_minor_planets_discover…
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web search NEUTRAL — Para solucionar problemas del Explorador de archivos en Windows 11, reinicie Explorer.exe, reinicie su computadora, actualice Windows a la última versión y limpie la caché accediendo a las Opciones de…
https://es.windows.day/?p=27750
+ 2 more evidence sources
info
“the researchers subsequently used a focused laser spot of only 1 micrometer in diameter to study the photocarrier dynamics in the device”
SINGLE SOURCE
The provided evidence consists of general definitions of research and researchers, with no mention of a 1-micrometer laser spot or photocarrier dynamics in this specific device.
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web search NEUTRAL — There are several forms of research: scientific, humanities, artistic, economic, social, business, marketing, practitioner research, life, technological, etc. The scientific study of research practice…
https://en.wikipedia.org/wiki/Research
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web search NEUTRAL — Mar 24, 2026 · Scientific researchers design studies, analyze data, and build the knowledge base that drives medicine and technology forward. Here’s what the job really…
https://scienceinsights.org/what-is-a-scientific-researcher-…
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web search NEUTRAL — The California Advancement Researchers Association is the largest single state chapter of the Association of Professional Researchers for Advancement (APRA), an international professional association …
https://caresearchers.org/
info
“the researchers also evaluated MnPSe3, the selenophosphate counterpart of MnPS3, revealing its broadband detection capability with a 3.6-fold magnitude increase in the corresponding MnPSe3—WS2 device.”
SINGLE SOURCE
The web search result 'Solar-blind' 2D heterostructure delivers 422-fold responsivity gain f...' explicitly mentions that MnPSe3–WS2 devices show broadband detection with a 3.6-fold responsivity gain. No other independent source confirms this specific value.
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web search NEUTRAL — Focused laser scanning reveals that band alignment and internal electric fields at the heterointerface enhance charge separation and reduce noise. MnPSe3–WS2 devices also show broadband detection with…
https://phys.org/news/2026-05-solar-2d-heterostructure-respo…
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web search NEUTRAL — Both PDs demonstrated a broadband photoelectric response in the range of 254–1020 nm under the biased condition. Additionally, the former device exhibited distinct self-powered behavior with a spectra…
https://pubs.rsc.org/en/content/articlelanding/2026/tc/d5tc0…
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web search NEUTRAL — The MnPSe3/WS2 heterostructure is hence studied here with first principles calculations by exploring its electronic properties under the application of an electric field.
https://journal.hep.com.cn/jocsu/EN/10.1007/s11771-021-4851-…
info
“Haizhao Zhi et al, Microbeam Laser Characterization in MnPS3(MnPSe3)–WS2Wide-Bandgap Semiconductor Heterojunction Photodetectors, ACS Applied Electronic Materials (2026). DOI: 10.1021/acsaelm.6c00417”
SINGLE SOURCE
The provided evidence mentions other papers on MnPSe3 and WS2, but does not confirm the existence of a paper with that exact title, the 2026 date, or the specific DOI 10.1021/acsaelm.6c00417.
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web search NEUTRAL — Phonon Dynamics in MnPSe3 Studied by Raman Spectroscopy and...
https://pubs.acs.org/doi/10.1021/acs.jpcc.4c02377
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web search NEUTRAL — This study reveals the possibility of harnessing the vdW MnPSe 3 /MoS 2 hybrid in low-power-consuming optoelectronic devices and its application potential in broadband photoelectric detection.
https://pubs.rsc.org/en/content/articlelanding/2026/tc/d5tc0…
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web search NEUTRAL — Transition metal dichalcogenides are interesting candidates as photocatalysts for hydrogen evolution reaction. The MnPSe3/WS2 heterostructure is hence studied here with first principles calculations b…
https://journal.hep.com.cn/jocsu/EN/10.1007/s11771-021-4851-…
verified
“Dr. Poh Eng Tuan is a Research Fellow at the National University of Singapore, Department of Physics.”
VERIFIED
Multiple independent web search results confirm that Poh Eng Tuan is a Research Fellow at the National University of Singapore in the Department of Physics.
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web search NEUTRAL — Home. National University of Singapore. Department of Physics. Poh Eng Tuan.A dibenzo‐24‐crown‐8 aldehyde derivative (DB24C8A) is employed as an additive to enhance the binding strength with Li+, henc…
https://www.researchgate.net/profile/Poh-Eng-Tuan
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web search NEUTRAL — View the National University of Singapore profile of Eng Tuan Poh. Including their publications.
https://discovery.nus.edu.sg/19450-eng-tuan-poh
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web search NEUTRAL — Eng Tuan Poh is an academic researcher from National University of Singapore. The author has contributed to research in topics: Chemistry & Monolayer. The author has an hindex of 2, co-authored 4 publ…
https://scispace.com/authors/eng-tuan-poh-3zkjdtxlsh
help
“He received his B.Sc. degree (Highest Distinction) in Chemistry and his Ph.D. degree in Integrative Sciences and Engineering from the National University of Singapore.”
INSUFFICIENT EVIDENCE
No evidence was provided for this claim.
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.