Revisiting two thiophosphate compounds constituting d⁰transition metal HfP₂S₆and d¹⁰transition metal α-Ag₄P₂S₆as multifunctional materials for combining second harmonic generation response and photocurrent response

Abstract

Two acentric thiophosphate compounds, HfP2S6 and α-Ag4P2S6, are revisited and studied as infrared nonlinear optical materials. HfP2S6 and α-Ag4P2S6 were structurally characterized without any property measurements. In this work, HfP2S6...

Heteroanionic LaBrVIO4 (VI = Mo, W): Excellence in Both Nonlinear Optical Properties and Photoluminescent Properties

“…The small amounts of dysprosium doping also dramatically enhance the SHG response of (La 0.9 Dy 0.1 )­BrWO 4 . Understanding how to enhance SHG in NLO materials is critical for pushing this field forward. − In addition to the SHG response, LaBrWO 4 also possesses better PL properties than LaBrMoO 4 (vide infra). Our further analysis confirms that the distorted 1D [VIO 5 ] VI = Mo,W strands play a critical role in determining the optical properties of LaBrVIO 4 (VI = Mo and W) (vide infra).…”

Na6Sn3P4S16: Sn(ii)-chelated PS4 groups inspired an ultra-strong SHG response

“…1a). [34][35][36][37][40][41][42][43][44][45][46][47][48][49][50][51] Compared with known SnPS 3 , 52 Na 6 Sn 3 P 4 S 16 also shows an obvious improvement in bandgap and SHG effect (Fig. 1b), illustrating the importance of the Sn(II)S 4 unit for material performance.…”

BaCu2SiS4: A New Member of the AIIBI2MIVQ4 Chalcogenide Family with a Chiral Crystal Structure

“…[4] One of the most common types of IR-NLO materials are metal chalcogenides. [4,17,18,[21][22][23][24][25][26][27][28] The interest in chalcogenides for nonlinear applications arises from their crystal structures. The arrangement of different types of metal chalcogenide polyhedra in a noncentrosymmetric manner often yields potential IR-NLO materials in a variety of structure types.…”

“…Fluxes may help to bypass the formation of unwanted side products and promote crystal growth. [21][22][23]34,[39][40][41] AB 2 MQ 4 (A = divalent metal; B = monovalent metal; M = tetrel = Si, Ge, or Sn; Q = chalcogen) is a family of quaternary chalcogenides that encompasses numerous noncentrosymmetric structure types, with applications ranging from nonlinear optics to photovoltaics. [42][43][44][45][46][47][48][49][50] A new member of this family, BaCu 2 SiS 4 , was discovered while trying to synthesize a hypothetical electron-balanced clathrate-I, [51] Ba 8 Cu 18 Si 9 S 19 , in salt flux.…”

“…Thus, substances with weaker and more polarizable bonds and lower band gaps tend to make good IR‐NLO materials [4] . One of the most common types of IR‐NLO materials are metal chalcogenides [4,17,18,21–28] …”