The ordered honeycomb films of dioctadecyldimethylammonium (DODMA+)-encapsulated sandwich-type [(Mn(H2O)3)2(WO2)2(BiW9O33)2]10− ({Mn2Bi2W20}10−) are used as templates to directionally electrodeposit gold nanoparticles into their macropores. Consequently, the prepared hierarchical Au-filled films present a strong surface-enhanced Raman scattering of rhodamine 6G molecules.
