Journal Article black phosphorus 2D layered materials 2D materials 2H WSe2 Te-doping anisotropic carrier mobility armchair orientation cetyltrimethyl ammonium bromides (CTAB) chemical doping defect scattering electronic structure field-effect transistors intrinsic screening layers lateral p-n homojunction multilayers optoelectronics piezoelectricity piezotronic effect transition metal dichalcogenides (TMDs) triboelectric nanogenerators tribotronic logic inverters tribotronic transistors