The approximate analytic bound state solutions of the
Klein-Gordon equation with equal scalar and vector exponential-type
potentials including the centrifugal potential term are obtained for any
arbitrary orbital quantum number l and dimensional space D. The
relativistic/non-relativistic energy spectrum formula and the
corresponding un-normalized radial wave functions, expressed in terms of
the Jacobi polynomials and or the generalized hypergeometric
functions have been obtained. A short-cut of the Nikiforov-Uvarov (NU)
method is used in the solution. A unified treatment of the Eckart,
Rosen-Morse, Hulthén and Woods-Saxon potential models can be easily
derived from our general solution. The present calculations are found to
be identical with those ones appearing in the literature. Further,
based on the PT-symmetry, the bound state solutions of the trigonometric
Rosen-Morse potential can be easily obtained.