Opportunities for enhancing solar energy harvesting using photon upconversion are
reviewed. The increasing prominence of bifacial solar cells is an enabling factor for the …

Counterfeiting and inverse engineering of security and confidential documents, such as
banknotes, passports, national cards, certificates, and valuable products, has significantly …

This review summarized the applied techniques and applied nanomaterials (NMs) for the
progress of latent fingerprints (LFPs) images on several surfaces. Used numerous types of …

Abstract Photoluminescence (PL), up‐conversion PL (UCPL), and phosphorescence are
three kinds of phenomena common to light‐emitting materials, but it is very difficult to …

Optical nanomaterials have been widely used in anticounterfeiting applications. There have
been significant developments powered by recent advances in material science, printing …

An ideal anti-counterfeiting technique has to be inexpensive, mass-producible,
nondestructive, unclonable and convenient for authentication. Although many anti …

Upconversion luminescence is characterized by the conversion of near-infrared excitation
into ultraviolet and visible emissions through a special class of doped optical materials …

Develo** advanced luminescent materials and techniques is of significant importance for
anti‐counterfeiting applications, and remains a huge challenge. In this work, a new and …

The counterfeiting of goods has important economic implications and is also a threat to
health and security. Incorporating anti-counterfeiting tags with physical unclonable functions …

Traditional smart fluorescent materials, which have been attracting increasing interest for
security protection, are usually visible under either ambient or UV light, making them …