+66 (2) 470 8803 nopporn.ruj@kmutt.ac.th
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Research

Topics : >> Surface photovoltage studies on CH3NH3PbI3 perovskite: influence of selective electron contact layers on photo-induced charge separation (Grant no. MRG6080173, TRF) >> Design New Perovskite Solar Cell Materials with Surface/Interface Engineering, NRCT) >> […]

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Facilities

Kelvin probe force microscopy (KPFM) KPFM is also known as surface potential microscopy, is a noncontact variant of atomic force microscopy (AFM). With KPFM, the work function of surfaces can be observed at atomic or […]

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Publications

Original papers published in 2022 42. Kay Thi Soe, Somya Thansamai, Non Thongprong, Waranchit Ruengsrisang, Ibrahim Adam Muhammad, Ekkaphop Ketsombun, Ratchadaporn Supruangnet, Anusit Kaewprajak, Pisist Kumnorkaew, Viboon Saetang, Thidarat Supasai, Nopporn Rujisamphan. “Simultaneous Surface Modification […]

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About Us

Laboratory for interface and surface (ISC) theme is related to the fabrication and characterization of nanoscale materials, state-of-the-art in nowadays semiconductor technology, and semiconductor materials for solar cell application. Our research group at ISC@KMUTT focuses on optical and electrical properties of emerging semiconductors, halide perovskites. Our research group related optoelectronic properties to chemical, material morphological, and structural properties through multimodal characterizations; that fundamental scientific understanding allows constructing perovskite solar cells with a power conversion efficiency of over 21%. In addition, we have been working on a so-called “Computer Intelligence-Aided Device Simulation, “which is a novel interdisciplinary research approach using a combination of the computational physics, computer intelligence, and experimental results. This approach will give an insight into the fundamental properties of the perovskite and further promote the development of stable high-efficiency solar cells.

We are looking for enthusiastic M.S. and Ph.D. students to work on a project together. Please apply to our Nanoscience and Nanotechnology Graduate Program, Faculty of Science, KMUTT.

https://iadmission.kmutt.ac.th

https://ripo.kmutt.ac.th/2021/07/7539/ 

Simultaneous Surface Modification and Defect Passivation on Tin Oxide–Perovskite Interfaces using Pseudohalide Salt of Sodium Tetrafluoroborate

In article number 2200964, Non Thongprong, Thidarat Supasai, Nopporn Rujisamphan, and co-workers presented the pseudohalide salt of sodium tetrafluoroborate, whose anions have a higher electronegativity than other halide salts, with the potential to passivate the surface of tin oxide while enhancing the optoelectronic properties of a perovskite film. The current study presents a facile and effective method for enhancing the moderate thermal stability and performance of solar cell devices.

Combined Experimental and Simulation Studies of Lithium and Cobalt-Modified TiO2 and Their Impacts on the Performance and Stability of Perovskite Solar Cells

The most fundamental properties of photovoltaic materials are impacted by the photoinduced charge separation behavior, which can be improved by modifying the underlying layer that the perovskite is prepared on top. In article number 2201632, Non Thongprong, Nopporn Rujisamphan, and colleagues investigate the impacts of using alkali salts on porous TiO2 from experimental and computational points of view to provide a better understanding of such surface passivation.