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In this article, we study the propagation of scalar fields in thegravitational background of a spherically symmetric, electrically charged,regular-de Sitter black holes in higher dimensions. We carry out a thoroughinvestigation of the grey body factors, by deriving analytical expressions forboth minimally and non-minimally coupled scalar fields. Then we study theprofile of grey body factors in terms of particle properties, namely theangular momentum quantum number and the non-minimal coupling constant, and thespacetime properties, namely the dimension, the cosmological constant and thenon-linear charge parameter. We then derive the Hawking radiation spectra for ahigher-dimensional electrically charged regular-de Sitter black hole. We findthat the non-minimal coupling may suppress the greybody factor and thenon-linear charge parameter may enhance it, but they both suppress the energyemission rate of Hawking radiation.

Greybody factor for an electrically charged regular-de Sitter black holes in $d$-dimensions