The chiral Ag/Au‐cysteine hybrid nanospheres (HNSs) have been prepared by using cysteine (Cys) as an inductive agent via wet chemistry methods. Unlike the case of the dipole approximation, the circular dichroism spectra can be divided into two components: 1) one region associated with the interband absorption enhanced optical activity of structural arrangement of Cys molecules at 200–320 nm; 2) another region corresponding to a ligand‐to‐metal charge transfer mixed with ligand‐to‐metal‐metal charge transfer excitation due to the synergetic interplay of the electrostatic interaction between Cys side chains and the Au(I)⋅⋅⋅Au(I) aurophilic attraction in the Au(I)‐Cys complexes, located at 350–400 nm. The chiroptical response increases dramatically with increasing the concentration of Au from 0.1 to 1.56 × 10−3 m, and subsequently decreases with further increasing the concentration of Au from 3.12 to 12.5 × 10−3 m, which is similar to the sergeants and soldiers effect of chiral polymer materials. Furthermore, the circinate‐like morphology of the alloyed nanospheres is strongly dependent on the presence of Ag and the chiral bimetal HNSs present excellent enantioselective recognition for amino acids in catalytic electrochemical reactions due to the specific activity and chiral active spots.

Cysteine-modified Au/Ag alloyed nanotubes with an extended helical network conformation exhibit higher chiroptical responses due to a stronger local electromagnetic field.

We synthesized 465 nm pure blue light-emitting Mn2+-doped CsPbBr3 nanocrystals via a template-assisted strategy without the coprecipitation of bulk materials.

The direct synthesis of a chiral nematic liquid crystalline phase of AgNR@SiO2@cysteine@CsPbBr3 hybrid nanorods (HNRs) is reported. The circular dichroism spectra can be divided into three components: (1) the interband absorption–enhanced optical activity of structural arrangement of cysteine (cys) molecules, 200–320 nm, (2) the chiral nematic liquid crystalline arrangement of the Ag nanorods (AgNRs), 350–450 nm, and (3) the exciton adsorption edge of the perovskite, 500–550 nm. The polarizing optical microscope images indicate that the chiroptical response of perovskite arises from chiral nematic crystalline arrangement rather than cys‐induced electronic coupling between a chiral ligand and otherwise achiral perovskite quantum dots (QDs). The luminescent intensity of CsPbBr3 QDs in AgNR@SiO2@cys@CsPbBr3 HNRs is boosted 87‐fold due to the local surface plasmon resonance field enhancement effect. Furthermore, the high‐performance green light emitting diode is constructed employing AgNR@SiO2@cys@CsPbBr3 complexes, which exhibit excellent luminescent properties. This work contributes insights into structure–property relationships and this strategy promisingly provides guidance for the other inorganic chiral semiconductor suprastructures.