Peacock‐Inspired Janus Structural Color Materials for Multi‐Level Encryption and Anti‐Counterfeiting DOI Open Access
Lulu Chen,

Huateng Li,

Yaoxia Li

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract The existence of different miraculous structural colors in nature inspires us to continuously create new techniques, however, limitations existing fabrication including low efficiency, small area, and imprecise structure control, have impeded their real applications. Mimicking the multi‐level peacock feathers, a one‐step strategy is developed efficiently manufacture Janus color materials (JSCMs). Using surface tension‐regulated self‐assembly SiO 2 nanoparticles polyethylene glycol (PEG) solution under 80 °C, manufacturing process can be completed matter minutes, which greatly improves efficiency photonic crystal preparation. front back JSCMs contain (PC) glass (PG) structures, respectively. arrangement on PC side highly ordered, producing bright iridescent color. In contrast, order degree PG low, resulting muted with less angular dependence. Adjusting molecular weight PEG modulate driving force assembly, allowing control over spatial position domain within film. also fluorescence intensity organic dyes film produce diverse optical signals great potential for information encryption anti‐counterfeiting.

Язык: Английский

Peacock‐Inspired Janus Structural Color Materials for Multi‐Level Encryption and Anti‐Counterfeiting DOI Open Access
Lulu Chen,

Huateng Li,

Yaoxia Li

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract The existence of different miraculous structural colors in nature inspires us to continuously create new techniques, however, limitations existing fabrication including low efficiency, small area, and imprecise structure control, have impeded their real applications. Mimicking the multi‐level peacock feathers, a one‐step strategy is developed efficiently manufacture Janus color materials (JSCMs). Using surface tension‐regulated self‐assembly SiO 2 nanoparticles polyethylene glycol (PEG) solution under 80 °C, manufacturing process can be completed matter minutes, which greatly improves efficiency photonic crystal preparation. front back JSCMs contain (PC) glass (PG) structures, respectively. arrangement on PC side highly ordered, producing bright iridescent color. In contrast, order degree PG low, resulting muted with less angular dependence. Adjusting molecular weight PEG modulate driving force assembly, allowing control over spatial position domain within film. also fluorescence intensity organic dyes film produce diverse optical signals great potential for information encryption anti‐counterfeiting.

Язык: Английский

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