{"product_id":"agbip-se-silver-bismuth-selenophosphate","title":"AgBiP₂Se₆ (Silver Bismuth Selenophosphate)","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eAgBiP₂Se₆\u003c\/strong\u003e is a layered van der Waals ferroelectric semiconductor crystallizing in the \u003cstrong\u003eR3̄\u003c\/strong\u003e space group, with lattice parameters a = b = 6.611 Å and c = 39.697 Å. Its structure consists of covalent [P₂Se₆]⁴⁻ anionic frameworks together with Ag⁺ and Bi³⁺ cations residing in Se-coordinated octahedra, with adjacent layers held together by van der Waals forces; the antiparallel off-centering displacements of Ag⁺ and Bi³⁺ give rise to a compensated ferrielectric configuration and an out-of-plane spontaneous polarization. The material is intrinsically an \u003cstrong\u003eindirect-bandgap semiconductor\u003c\/strong\u003e, yet multilayer samples exhibit a quasi-direct band structure, with indirect and direct transition energies of approximately \u003cstrong\u003e1.46 eV\u003c\/strong\u003e and \u003cstrong\u003e1.535 eV\u003c\/strong\u003e at 300 K; their small energy separation gives rise to pronounced photoluminescence.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e　　Owing to its visible-range band gap, coupled ionic–electronic transport, and high sensitivity to external stimuli, AgBiP₂Se₆ shows strong potential for \u003cstrong\u003eoptoelectronic conversion, ferroelectric photovoltaics, photodetection, and pressure-tunable optoelectronics\u003c\/strong\u003e, serving as an important platform for exploring structure–property relationships in low-dimensional ferroelectric semiconductors.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e　　\u003cstrong\u003eSample specifications:\u003c\/strong\u003e Individual crystals measure approximately \u003cstrong\u003e3–4 mm\u003c\/strong\u003e,\u003cspan\u003ewith a purity of up to \u003c\/span\u003e\u003cstrong\u003e99.9999% (6N)\u003c\/strong\u003e\u003cspan\u003e,\u003c\/span\u003e with each package containing \u003cstrong\u003e2–3 pieces\u003c\/strong\u003e.\u003c\/p\u003e","brand":"2D Material Supermarket","offers":[{"title":"Default Title","offer_id":54104343937208,"sku":"2MS-AgBiP₂Se₆","price":5788.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/0069\/4200\/files\/8301f43d9055f372af0de60cc59a10d6_1f485b85-88f9-4f05-967d-46f83c2e915c.jpg?v=1789476699","url":"https:\/\/2dmaterialsupermarket.com\/products\/agbip-se-silver-bismuth-selenophosphate","provider":"2D Material Supermarket","version":"1.0","type":"link"}