Tm3+/Yb3+:BaMoO4 phosphor for high-performance thermometry operating in the first biological window.

abstract

• The development of optical thermometers operating within the first biological window (650-1000nm) has drawn great interest lately in the biological and medical fields. Here a new type of luminescent thermometer relying on the intensity ratio between G41-F43 (652nm) and F2,33-H63(691nm) transitions in Tm3+/Yb3+:BaMoO4 phosphor is reported under 980nm excitation. The thermometry is found to be independent on the excitation power, benefiting the reduction of the measurement error. Moreover, it exhibits extremely high absolute sensitivity ranging from 210.510-4 to 1034.510-4K-1 in 298-498K. The maximal relative sensitivity and temperature resolutions (1.36%K-1 and 0.37K, respectively) are also among the highest values of those previous thermometric materials. This Letter provides guidance in selecting the suitable emission bands to construct the ratiometric luminescent thermometers with high performance.

authors

• Xu, Shiqing

published proceedings

• Opt Lett

author list (cited authors)

• Xin, L., Ruoshan, L., Yinyan, L. i., & Shiqing, X. u.

citation count

• 10

complete list of authors

• Xin, Liu||Ruoshan, Lei||Yinyan, Li||Shiqing, Xu

publication date

• August 2019

publisher

• Optica Publishing Group  Publisher

published in

• Optics Letters  Journal

keywords

• Barium
• Luminescence
• Molybdenum
• Temperature
• Thermometry
• Thulium
• Ytterbium

PubMed Central ID

• 31368930

Digital Object Identifier (DOI)

• 10.1364/OL.44.003633

start page

• 3633

end page

• 3636

volume

• 44

issue

• 15

URL

• http://dx.doi.org/10.1364/ol.44.003633