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Effects of substrate temperature and external poling field on molecular orientation and aggregation in vacuum deposited photo responsive DR1 films
Taunaumang H.a,b, Hidayat R.a, Hermana, Tjia M.O.a
a Department of Physics, Institut Teknologi Bandung, Indonesia
b Department of Physics, Universitas Manado, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]A series of absorption spectroscopy measurements have been conducted on photo responsive Disperse Red 1 (DR1) films vacuum deposited at different substrate temperatures, with and without the presence of external poling field. Compared with the spectrum in solution, the spectra of DR1 films are generally featured by a pronounced depression of the visible absorption band and the appearance of a new peak at considerably shorter wavelength. A further depression of the absorption band and enhancement of the new peak are observed in the films deposited at higher substrate temperatures or in the presence of poling electric field, without showing, however, visible increase of the corresponding blue shift. These changes are attributed to increased portion of the vertically oriented DR1 molecules without resulting in higher packing of the oriented molecules.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Different substrates,Electric field poling,Molecular aggregation,Physical vacuum depositions,Poling electric fields,Shorter wavelength,Spectroscopy measurements,Substrate temperature[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]DR1,Electric field poling,Molecular aggregation,Molecular orientation,Physical vacuum deposition[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1142/S0218863503001341[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]