“…There are not many refractory materials with both metallic and plasmonic characters that are suitable for thermo-photovoltaics and solar-thermal applications and that can replace the precious metals like silver and gold [ [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] ]. There is a renewed interest in titanium nitride (TiN) as a plasmonic metamaterial [ 4 , [9] , [10] , [11] , [12] ] as a cathode material for energy storage [ [13] , [14] , [15] , [16] ] and catalysis [ [17] , [18] , [19] , [20] , [21] , [22] ]. The nanomechanical properties, surface defects and stoichiometry are crucial for the overall device functionality and reliability [ 5 , 6 , [23] , [24] , [25] , [26] , [27] ].…”