Pith Number

pith:HKFFKIUZ

pith:2026:HKFFKIUZ7YMLDWTDU3SWZVZ3TI

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Durable Enhancement of $\mathbf{MoS_2}$ Single-Layer Photoluminescence by Ultraviolet Laser Treatment Under Ambient Conditions

Jana Kalb\'a\v{c}ov\'a Vejpravov\'a, Jan P\v{r}ibyl, Jind\v{r}ich Mach, Ji\v{r}\'i Li\v{s}ka, Ji\v{r}\'i Spousta, Mahan Bakhshikhah, Ond\v{r}ej \v{C}ervinka, Petr Dub, Rahul Kesarwani, Tom\'a\v{s} \v{S}ikola

Ultraviolet laser treatment under ambient air boosts photoluminescence intensity in single-layer MoS2 by more than eight times with lasting stability.

arxiv:2605.17363 v1 · 2026-05-17 · cond-mat.mes-hall · physics.optics

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Claims

C1strongest claim

we demonstrate a remarkably robust, more than 8-fold maximum enhancement in the PL intensity of exfoliated and CVD-grown single-layer MoS2 via a non-destructive ultraviolet (UV) laser treatment method

C2weakest assumption

The observed PL intensity increase, trion-to-exciton transition, and Raman blue shifts are causally produced by the UV laser treatment through p-doping and Mo-O bond formation rather than by other uncontrolled factors such as laser-induced heating or surface contamination.

C3one line summary

UV laser treatment under ambient conditions produces a durable >8-fold photoluminescence enhancement in single-layer MoS2 with spatial control and oxygen dependence.

References

2 extracted · 2 resolved · 0 Pith anchors

[1] (24) Bera, A.; Muthu, D 2018 · doi:10.1016/j.matlet.2018.10.013

[2] (27) Rao, R.; Carozo, V.; Wang, Y.; Islam, A 2019 · doi:10.1021/acsnano.6b03443

Formal links

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Receipt and verification

First computed	2026-05-20T00:03:54.513141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a8a552299fe18b1da63a6e56cd73b9a2ca18348f7a3ad7b39f3ed6b4c459f43

Aliases

arxiv: 2605.17363 · arxiv_version: 2605.17363v1 · doi: 10.48550/arxiv.2605.17363 · pith_short_12: HKFFKIUZ7YML · pith_short_16: HKFFKIUZ7YMLDWTD · pith_short_8: HKFFKIUZ

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HKFFKIUZ7YMLDWTDU3SWZVZ3TI \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3a8a552299fe18b1da63a6e56cd73b9a2ca18348f7a3ad7b39f3ed6b4c459f43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c1e20fcceb6dc533886574401bbb15f1e7df4f5ca6f31f4908b7618770a5ead",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2026-05-17T10:10:42Z",
    "title_canon_sha256": "f62d68fac325f51c2773a93283b6a0a59457cef664ffcc596d5c31ab200f27c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17363",
    "kind": "arxiv",
    "version": 1
  }
}