{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T06:14:54Z","timestamp":1789193694727,"version":"build-2803163510"},"reference-count":72,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"40","content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Sci. Adv."],"published-print":{"date-parts":[[2025,10,3]]},"abstract":"<jats:p>\n            A highly periodic electrostatic potential and coherent band transport can emerge in organic molecular crystals, despite weak van der Waals interactions. Although charge carrier mobility in single-crystalline organic semiconductors (OSCs) reaches 10 square centimeters per volt per second (cm\n            <jats:sup>2<\/jats:sup>\n            \u00a0V\n            <jats:sup>\u22121<\/jats:sup>\n            \u00a0s\n            <jats:sup>\u22121<\/jats:sup>\n            ), it is predominantly limited by molecular vibrations excited at room temperature. The extent to which mobility in single-crystalline OSCs can be increased remains a central question. Here, we demonstrate charge transport in a clean two-dimensional hole gas (2DHG) in uniaxially strained, single-crystalline OSCs at cryogenic temperatures, with minimized lattice vibrations. Hall effect measurements reveal a mobility of 117 cm\n            <jats:sup>2<\/jats:sup>\n            \u00a0V\n            <jats:sup>\u22121<\/jats:sup>\n            \u00a0s\n            <jats:sup>\u22121<\/jats:sup>\n            at 2 kelvin under 2.8% compressional strain, with an extraordinarily large piezoresistive effect and low sheet resistivity of 550 ohms, one-fifth of the lowest resistivity in unstrained samples. These clean systems offer opportunities to explore intrinsic strain-induced charge transport physics, where condensed matter phenomena, characterized by weakly bonded molecular orbitals, combine electronic correlation and lattice degrees of freedom.\n          <\/jats:p>","DOI":"10.1126\/sciadv.aea1634","type":"journal-article","created":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T17:58:40Z","timestamp":1759341520000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":2,"title":["Hall mobility exceeding 100 cm\n            <sup>2<\/sup>\n            \u00a0V\n            <sup>\u22121<\/sup>\n            \u00a0s\n            <sup>\u22121<\/sup>\n            observed in strained organic semiconductors"],"prefix":"10.1126","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-7905-0694","authenticated-orcid":true,"given":"Tomoki","family":"Furukawa","sequence":"first","affiliation":[{"name":"Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8574-0969","authenticated-orcid":true,"given":"Naotaka","family":"Kasuya","sequence":"additional","affiliation":[{"name":"Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-9035-9616","authenticated-orcid":true,"given":"Hideaki","family":"Takayanagi","sequence":"additional","affiliation":[{"name":"Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7377-6043","authenticated-orcid":true,"given":"Shun","family":"Watanabe","sequence":"additional","affiliation":[{"name":"Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan."},{"name":"Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7003-1350","authenticated-orcid":true,"given":"Jun","family":"Takeya","sequence":"additional","affiliation":[{"name":"Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan."},{"name":"International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 205-0044, Japan."},{"name":"Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"221","reference":[{"key":"e_1_3_2_2_2","unstructured":"S. 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