{"status":"OK","msg":"Details loaded!","presentation":{"id":106,"title":"STRUCTURAL AND OPTICAL PROPERTIES OF ANNEALED ALGASB LAYERS","abstract":"The AlGaSb layers grown on [100] GaSb substrates could create structures that operate in the 0.7-1.7 \u00b5m range, this makes suitable for its potentially use in optoelectronic devices, these includes lasers and detectors working in optical fiber communication systems. In this work, the liquid phase epitaxy (LPE) technique was used to grow Al(x)Ga(1-x)Sb layers with different thicknesses on GaSb substrate and after the growth the layers were annealed at 450\u00b0C during four hours. The High Resolution X-ray diffraction (HRXRD) was used to analyze the crystalline quality and stress change of AlGaSb layers and the optical features of AlGaSb\/GaSb system were observed through low temperature photoluminescence (PL). In this study the release of tensile stress and its transformation into compressive stress modifies the near band edge at low temperature causing a shift to lower wavelength. Also, the emission increased its PL intensity attributed to interdiffusion and intermixing of species and the reduction of non-radiative recombination centres in the layer.","keywords":"X-Ray Diffraction; Semiconductor, Photoluminescence","status":"active","sarx_st":"accepted","user_id":28,"created_at":"2016-07-11 15:54:28","updated_at":"2016-08-20 12:35:28","filename":"Abstract (SARX2016) Gabriel.doc","mode":"oral","sarx_code":"03_O-XRD","poster_group":null,"file":"3c141580f6375311d0449285e83df38f.doc","author":"Gabriel Juarez-Diaz","affiliation":"Dr \/<\/b> Benemerita Universidad Autonoma de Puebla \/<\/b> Mexico","user":{"id":28,"name":"Gabriel Juarez-Diaz","degree":"Dr","email":"j.gabriel@rocketmail.com","username":"j.gabriel@rocketmail.com","confirmed":1,"confirmation_code":null,"created_at":"2016-03-06 20:38:57","updated_at":"2016-09-08 02:45:24","sarx":1,"affiliation":"Benemerita Universidad Autonoma de Puebla","address":"Av 14 Sur y Av San Claudio Ciudad Universitaria","zipcode":"72570","state":"Puebla","phone":"+522222522668","fax":null,"city":"Puebla","country":"Mexico","status":"active","is_admin":0,"category":"professor","school":0,"icdd":1}}}