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

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

Atomic Layer Deposition (ALD) Atomic Layer Deposition (ALD) is a thin film deposition technique that can be used for encapsulation in perovskite solar cells to improve their stability and performance. The process involves the sequential […]

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Publications

Original papers published in 2025 57. Chinnatip Harnmanasvate , Rico Meitzner , Yuxin Liu , Nopporn Rujisamphan , Eva Lisa Unger and Rongrong Cheacharoen. “Carbohydrate-Powered Solar Cells: How Starches Give Perovskite Extra Energy” Materials Chemistry Frontiers (2025) doi:10.1039/D5QM00493D 56. Watcharanon Kantayasakun, Somya Thansamai, Kay Thi Soe, Nopporn Rujisamphan, Non Thongprong. “Reassessing […]

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About Us

Petchra Pra Jom Klao Ph.D. Research Scholarship-Doctoral Degree Direct Admissions for Non-Thai Applicants 2/2025

Details: https://iadmission.kmutt.ac.th/programs/doctor/1498643517962

 

Postdoctoral Fellowship available at KMUTT: the timeline for the postdoctoral fellowship is as follows: all documents must be submitted before 30 October 2025. Interviews will take place around mid-May 2026, and contract signing is expected in June 2026. Remarks: documents include: 1. research proposal 2. postdoctoral application form 3. copies of your degrees and transcript records.

Benefits: salary up to 37,000 baht per month, with 1-year, and extend to 2-year (max) contract. more details: https://ripo.kmutt.ac.th/2024/08/12780/

The Interface and Surface Characterization Laboratory (ISC) at King Mongkut’s University of Technology Thonburi (KMUTT), part of the Nanoscience and Nanotechnology graduate program, focuses on advancing semiconductor and perovskite-based optoelectronic technologies. Our research encompasses the development of perovskite materials for solar cells, light-emitting diodes (LEDs), and photodetectors, aiming to enhance both device efficiency and operational stability. The laboratory integrates cutting-edge fabrication methods used in front-end semiconductor processes such as plasma etching, atomic layer deposition, low-temperature evaporation, sputtering, electron beam with comprehensive surface and interface controls. Devices are meticulously fabricated and tested within a controlled environment to ensure high reproducibility and precision. We strive to deliver innovations that merge high performance with long-term stability, contributing to sustainable advancements in next-generation optoelectronics. The figure below presents the J–V scans of our recently recorded perovskite solar cells, highlighting the progress achieved in our ongoing research.

Research Highlights

Cover Feature:

This works investigate guanidinium halide salts (GuaX; X = I, Br, Cl) for mitigating charge accumulation at perovskite grain boundaries.

Inside Cover Feature: 

This work introduced a 2D patches to enhance performance and bending lifespan in flexible perovskite solar cells. 

Inside Back Cover:

This work introduced a technique for making perovskite solar cells by adding a 2D layer to a 3D structure without post-production annealing.

Front Cover:

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 is presented. The current study presents a facile and effective method for enhancing the moderate thermal stability and performance of solar cell devices.

Inside Back Cover:

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. 

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