A Metal–Organic Framework Platform Enabling Visible-to-Ultraviolet Upconversion-Driven Heterogeneous Photochemistry
Subhrajyoti Ghosh, Sakura Nakagawa, Masanori Uji, Manpreet Singh, Naoto Matsumoto, Miku Inoue, Bhavesh Parmar, Nobuhiro Yanai · 2026
Read A Metal–Organic Framework Platform Enabling Visible-to-Ultraviolet Upconversion-Driven Heterogeneous Photochemistry by Subhrajyoti Ghosh, Sakura Nakagawa, Masanori Uji, Manpreet Singh, Naoto Matsumoto, Miku Inoue, Bhavesh Parmar, Nobuhiro Yanai (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13291878.txt.
Description
Subhrajyoti Ghosh and colleagues build a porous crystal that turns visible light into ultraviolet light in 2026. The trick, triplet-triplet annihilation upconversion, merges two low-energy excitations into one high-energy glow. Doing it in solids has failed often because the active molecules clump and fade. The team locked a light-harvesting iridium compound and a glowing partner inside a zirconium metal-organic framework. The framework's rigid pores keep the partners close yet orderly.
Under blue light at 445 nanometers, the material emitted ultraviolet light in suspension. Its upconversion efficiency reached 0.60 percent, respectable for this class. The structure also resisted the photodamage that plagues loose mixtures. As a working demo, the crystal released glutamate from a caged precursor on command, acting as a lamp-free ultraviolet source. No mercury lamp or direct ultraviolet bulb was needed. The authors pitch the platform for greener photochemistry and light-driven materials.
Catalog record
| CREATOR | Subhrajyoti Ghosh, Sakura Nakagawa, Masanori Uji, Manpreet Singh, Naoto Matsumoto, Miku Inoue, Bhavesh Parmar, Nobuhiro Yanai |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 43 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |