115 citations · 290 across the 6 of their papers we have counts for
5 papers · 1 filter
Laboratory photo-chemistry of covalently bonded fluorene clusters: observation of an interesting PAH bowl-forming mechanism
Weiwei Zhang, Yubing Si, Junfeng Zhen +3
The fullerene C, one of the largest molecules identified in the interstellar medium (ISM), has been proposed to form top-down through the photo-chemical processing of large…
Laboratory photo-chemistry of pyrene clusters: an efficient way to form large PAHs
Junfeng Zhen, Tao Chen, Alexander G. G. M. Tielens
In this work, we study the photodissociation processes of small PAH clusters (e.g., pyrene clusters). The experiments are carried out using a quadrupole ion trap in combination wit…
Laboratory gas-phase infrared spectra of two astronomically relevant PAH cations: diindenoperylene, CH and dicoronylene, CH
Junfeng Zhen, Alessandra Candian, Pablo Castellanos +3
The first gas-phase infrared spectra of two isolated astronomically relevant and large PAH cations - diindenoperylene (DIP) and dicoronylene (DC) - in the 5301800 cm (18.…
Infrared Spectra of Hexa-peri-hexabenzocoronene Cations:HBC+ and HBC2+
Junfeng Zhen, Pablo Castellanos, Jordy Bouwman +2
We present the first infrared (IR) gas phase spectrum of a large and astronomically relevant PAH cation (CH, HBC) and its di-cation (CH,…
Laboratory Photo-chemistry of PAHs: Ionization versus Fragmentation
Junfeng Zhen, Pablo Castellanos, Daniel M. Paardekooper +5
Interstellar polycyclic aromatic hydrocarbons (PAHs) are expected to be strongly processed by vacuum ultraviolet photons. Here, we report experimental studies on the ionization and…