Ultrafast Laser-Shock-Induced Confined Metaphase Transformation for Direct Writing of Black Phosphorus Thin Films

Gang Qiu, Qiong Nian, Maithilee Motlag, Shengyu Jin, Biwei Deng, Yexin Deng, Adam R. Charnas, Peide D. Ye, Gary J. Cheng

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Few-layer black phosphorus (BP) has emerged as one of the most promising candidates for post-silicon electronic materials due to its outstanding electrical and optical properties. However, lack of large-scale BP thin films is still a major roadblock to further applications. The most widely used methods for obtaining BP thin films are mechanical exfoliation and liquid exfoliation. Herein, a method of directly synthesizing continuous BP thin films with the capability of patterning arbitrary shapes by employing ultrafast laser writing with confinement is reported. The physical mechanism of confined laser metaphase transformation is understood by molecular dynamics simulation. Ultrafast laser ablation of BP layer under confinement can induce transient nonequilibrium high-temperature and high-pressure conditions for a few picoseconds. Under optimized laser intensity, this process induces a metaphase transformation to form a crystalline BP thin film on the substrate. Raman spectroscopy, atomic force microscopy, and transmission electron microscopy techniques are utilized to characterize the morphology of the resulting BP thin films. Field-effect transistors are fabricated on the BP films to study their electrical properties. This unique approach offers a general methodology to mass produce large-scale patterned BP films with a one-step manufacturing process that has the potential to be applied to other 2D materials.

Original languageEnglish (US)
Article number1704405
JournalAdvanced Materials
Volume30
Issue number10
DOIs
StatePublished - Mar 8 2018

Fingerprint

Ultrafast lasers
Phosphorus
Thin films
Electric properties
Lasers
Silicon
Laser ablation
Field effect transistors
Raman spectroscopy
Molecular dynamics
Atomic force microscopy
Optical properties
Crystalline materials
Transmission electron microscopy

Keywords

  • black phosphorus
  • direct writing
  • thin films

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Ultrafast Laser-Shock-Induced Confined Metaphase Transformation for Direct Writing of Black Phosphorus Thin Films. / Qiu, Gang; Nian, Qiong; Motlag, Maithilee; Jin, Shengyu; Deng, Biwei; Deng, Yexin; Charnas, Adam R.; Ye, Peide D.; Cheng, Gary J.

In: Advanced Materials, Vol. 30, No. 10, 1704405, 08.03.2018.

Research output: Contribution to journalArticle

Qiu, Gang ; Nian, Qiong ; Motlag, Maithilee ; Jin, Shengyu ; Deng, Biwei ; Deng, Yexin ; Charnas, Adam R. ; Ye, Peide D. ; Cheng, Gary J. / Ultrafast Laser-Shock-Induced Confined Metaphase Transformation for Direct Writing of Black Phosphorus Thin Films. In: Advanced Materials. 2018 ; Vol. 30, No. 10.
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