{"paper":{"title":"Low Resistance P-type Contacts to Monolayer WSe$_2$ through Chlorinated Solvent Doping","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Andrew J. Mannix, Anh Tuan Hoang, Ashley P. Saunders, Eric Pop, Fang Liu, Lauren Hoang, Marisa Hocking, Robert K.A. Bennett, Tara Pena, Zhepeng Zhang","submitted_at":"2025-04-29T18:20:03Z","abstract_excerpt":"Tungsten diselenide (WSe$_2$) is a promising p-type semiconductor limited by high contact resistance ($R_\\textrm{C}$) and the lack of a reliable doping strategy. Here, we demonstrate that exposing WSe$_2$ to chloroform provides simple and stable p-type doping. In monolayer WSe$_2$ transistors with Pd contacts, chloroform increases the maximum hole current by over 100$\\times$ (>200 $\\mu$A/$\\mu$m), reduces $R_\\textrm{C}$ to ~2.5 k$\\Omega\\cdot\\mu$m, and retains an on/off ratio of $10^{10}$ at room temperature. These improvements persist for over 8 months, survive annealing above 150 {\\deg}C, and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.21102","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2504.21102/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}