Welcome to ODSOS Lab

Our research interests are focused on the interfacial physics of thin-film based optoelectronic devices, time-resolved excitonic and carrier dynamics, light-material interactions and numerical simulations for understanding the plasmonic effects on electromagnetic coupling, energy conversion, photo-detection applications. In 2023, we investigated the optically controllable dielectric responses of nanocomposite thin films which can increase in the high-K materials and thereby realizing low-frequency miniaturized antennas. In 2025, we proposed a facile method to effectively manipulate the light emission wavelength of mixed-cation perovskite thin films via adjusting the self-healing and phase segregation effects. We are trying to explore the relation between crystal structures and optical nonlinear properties of perovskite crystalline thin films in order to fully understand the light-material interactions. Recently, I proposed various Si waveguide based optical devices via using numerical simulation methods.

歡迎來到光電元件物理與光譜學實驗室 (Chinese Version)

Current Focus Collections

Focus on Silicon Photonic Integrated Circuits: Devices, Designs, and Applications Nanotechnology (2025 IF: 2.9)

Guest Editors: Prof. Sheng Hsiung Chang, Prof. Chia-Lung Tsai

Novel Properties of Modified Perovskite Materials and Applications in Optoelectronic Devices Nanotechnology (2024 IF: 2.8) (4 papers was published)

Guest Editors: Prof. Sheng Hsiung Chang, Prof. Ming-Hsien Li, Dr. Diksha Thakur

Current Focus Issue : Current Developments of Highly Efficient Solar Cells AIMS Energy (2025 IF: 2.0)

Guest Editors: Prof. Sheng Hsiung Chang, Dr. Jia-Ren Wu, Dr. Anjali Chandel

Previous Focus Collections and Special Issues: (70 papers was published)

Manipulations of Nano Active Materials on Substrate via van der Waals Contacts and/or Polar Contacts and their Applications (8 papers) Nanotechnology (2022 IF: 3.5, Q2)
Manipulations of Atomic and Molecular Layers and its Applications in Energy, Environmental Sciences and Optoelectronic Devices (15 papers) Nanotechnology (2021 IF: 3.953)
Recent Advances in Emerging Solar Cells (4 papers) Processes (2021 IF: 3.352)
Applications of Polymers in Energy and Environmental Sciences II (5 published paper) Polymers (2021 IF: 4.967)
Focus on Advanced Nanomaterials for Energy, Environmental Science and Optoelectronic Devices (20 papers) Nanotechnology (2021 IF: 3.953)
Focus on Perovskite Thin Films and Nanomaterials for Applications in Optoelectronic Devices (9 papers) Nanotechnology (2021 IF: 3.953)
Applications of Polymers in Energy and Environmental Sciences (9 papers) Polymers (2021 IF: 4.967)

We used finite-difference time-domain method to investigate the lightwave propagation at subwavelength scales. 🌌

Polarization beam splitter: TM mode

Polarization beam splitter: TE mode

We used spin-coating mehtod to fabricate perovskite thin films which can be used in solar cells as the light absorbing layer. 🌟

The video shows how a perovskite film was prepared in our lab.

We have constructed a multi-functional absorbance, reflectance, photoluminescence, Raman scattering, and two-photon luminescence spectrometer, which was used to investigate the optoelectronic and crystal structural properties of the perovsktie thin films. 🌏

A LBO crystal and a 1040-nm pulsed laser were used to generate an efficient second-harmonic generation (SHG).

2022 A video shows you the fabrication, measurement and analysis of inverted-type perovskite solar cells (from Anjali & Diksha)

2021 A video shows you how to investigate perovskite solar cells (from 佳臻&羽珊&煜晟&忠育&沛臻&守恩&Diksha)

Publications in NCU (2025.08 - now)

Journal Paper

Yi-Chun Huang, Anjali Chandel, Jia-Ren Wu, Chia-Lung Tsai, Sheng Hsiung Chang*, "An efficient and compact 1 × 8 beam splitter based on a tapered multimode Si waveguide at λ0 = 1330 nm", 2026, Nanotechnology, vol. 37, p. 235202 (2024 IF: 2.8, Q2 in Physics, Applied).
Sheng Hsiung Chang, "Design and analysis of a wavelength-sized Si disk resonator based temperature tunable beam splitter", 2026, Physica Scripta, vol. 101, p. 155509. (2024 IF: 2.6, Q2 in Physics, Multidisciplinary)
Jia-Ren Wu, Yi-Chun Huang, Anjali Chandel, Sheng Hsiung Chang*, "Dispersive directional coupling effects in the Au/dielectric/Au plasmonic waveguide with a subwavelength stub structure", 2026, Journal of Optics, vol. 28, p. 045002. (2024 IF: 2.7, Q2 in Optics)
Sheng Hsiung Chang, "An efficient orthogonal coupler for silicon photonics with the degenerate plasmonic modes", 2026, Nanotechnology, vol. 37, p. 145201. (2024 IF: 2.8, Q2 in Physics, Applied)
Jia-Ren Wu, Yi-Chun Huang, Anjali Chandel, Sheng Hsiung Chang*, "Novel wavelength selection effect based on the ring resonator mediated modal interference in a silicon waveguide", 2026, Journal of Physics: Photonics, vol. 8, p. 01LT02. (2024 IF: 8.4, 14/125 in Optics).
Sheng Hsiung Chang, "Efficient TM-pass polarizer based on Si waveguide via trapping the leakage TE mode", 2026, Journal of Physics: Photonics, vol. 8, p. 015060 (2024 IF: 8.4, 14/125 in Optics).
Sheng Hsiung Chang, "Light extraction of oblique emissions via collecting the local quasi-mode evanescent wave at the subwavelength scale ", 2026, Nanotechnology, vol. 37, p. 015201. (2024 IF: 2.8, Q2 in Physics, Applied)
Sheng Hsiung Chang, "Unraveling the ultra-broadband beam splitter based on parallel coupled waveguides", 2025, Journal of Physics: Photonics, vol. 7, p. 045037. (2024 IF: 8.4, 14/125 in Optics)
Anjali Chandel, Chia-Lung Tsai, Sheng Hsiung Chang*, "Tunable light emissions of PEAI-doped FA0.6Cs0.4Pb(I0.6Br0.4)3 thin films via manipulating self-healing and phase segregation effects", 2025, Journal of Luminescence, vol. 286, p. 121427. (2024 IF: 3.6, Q2 in Optics)

Publications in NTOU (2024.08 - 2025.07)

Book

Anjali Chandel and Sheng Hsiung Chang, Light-material interactions and Applications in optoelectronic devices, IOP Publishing, December 2024. (Hardback ISBN: 9780750360975; Ebook ISBN: 9780750360999). Bookstore

Journal Paper

Sheng Hsiung Chang*, Po-Wen Tang, Tsong-Ru Tsai, Gia Wei Shu, Wei-Jen Hsueh, Wen-Ho Hsu, "Characterizzation of a femtosecond pulsded laser via analyzing the second harmonic generation in a III-V nitride semiconductor", 2025, Journal of Physics: Photonics, vol. 7, p. 035019. (2024 IF: 8.4, Q1 in Physics, Applied)
Wen-Hsin Chang, Yi-Chun Huang, Anjali Chandel, Shou-En Chiang, Jia-Ren Wu, Sheng Hsiung Chang*, "Improved photovoltaic performance of un-doped FAPbI3 thin film based solar cells via de-trapping excitons", 2025, Chinese Journal of Physics, vol. 95, pp. 790-802. (Q1 in Physics, Multidisplinary)
Anjal Chandel, Po-Wen Tang, Sheng Hsiung Chang*, "Review on efficient P3CT and P3HT HTL based perovskite solar cells", 2025, Nanotechnology, vol. 36, p. 132004. (Q2 in Physics, Applied)
Yi-Chun Huang, I-Jane Yen, Chih-Hsien Tseng, Hui-Yu Wang, Anjali Chandel, Sheng Hsiung Chang*, "Structural and excitonic properties of the polycrystalline FAPbI3 thin films, and their photovoltaic responses", 2024, Nanotechnology, vol. 35, p. 505706. (Q2 in Physics, Applied)

Publications in CYCU (2018.03 - 2024.07)

*corresponding and submitting author; 44 papers

Jia-Ren Wu, Anjali Chandel, Chiashain Chung, Sheng Hsiung Chang*, "Efficient optical coupling between dielectric strip waveguides and a plasmonic trench waveguide", 2024, Photonics, vol. 11, p. 608. (2023 IF: 2.1 Q2 in Optics)
Chia-Lung Tsai, S. N. Manjunatha, Mukta Sharama, Sheng Hsiung Chang*, Yu-Li Hsieh, Liann-Be Chang, Chun-Huan Chang, "Enhancing the photovoltaic responses of MAPbI3 poly-crystalline perovskite films via adjusting the properties of PEDOT:PSS hole transport material with a low-polarity solvent treatment process", 2024, Materials Science in Semiconductor Processing, vol. 176, p. 108355. (2022 IF: 4.1).
Chia-Chen Lin, Shou-En Chiang, Jia-Ren Wu, Yi-Chun Huang, Sheng Hsiung Chang*, "Optically tunable dielectric response of TiO2:MAPbI3 nanocomposite thin films", 2024, Journal of Alloys and Compounds, vol. 970, p. 172274. (2022 IF: 6.2)
Diksha Thakur, Sheng Hsiung Chang*, Material properties and optoelectronic applications of lead halide perovskite thin films," 2024, Synthetic Metals, vol. 310, p. 117535. (2022 IF: 4.4)
Sheng Hsiung Chang*, Xiangbo Meng*, Jian Liu*, Dung-Sheng Tsai*, Xinwei Wang*, Chiashian Chuang*, Cheng-Ying Chen*, Ai-Dong Li*, "Editorial for focus on manipulations of atomic and molecular layers and its applications in energy, environment sciences and optoelectronic devices", 2023, Nanotechnology, vol. 34, p. 500201. (2022 IF: 3.5).
Anjali Chandel, Shou-En Chiang, Wen-Hsin Chang, Jia-Ren Wu, Chi-Tsu Yuan, Sheng Hsiung Chang*, "Effects of bendable P3CT polymers layer on the photovoltaic performance of perovskite solar cells", 2023, Nanotechnology, vol. 34, p. 405401. (2022 IF: 3.5)
Chia-Lung Tsai*, S. N. Manjunatha, Sheng Hsiung Chang*, Ming-Jer Jeng, Liann-Be Chang, Chun-Huan Chang, Mukta Sharma, Chi-Tsu Yuan, “Properties of FAPbI3-Based Alloy Perovskite Thin Films and Their Application in Solar Cells”, 2023 , Processes , vol.11 , p.1450. (2021 IF: 3.352)
Anjali Chandel, Qi Bin Ke, Shou-En Chiang, Hsin-Ming Cheng*, Sheng Hsiung Chang*, "Effects of drying time on the formation of merged and soft MAPbI3 grains and their photovoltaic responses", 2023, Nanoscale Advances, vol. 5, pp. 2190-2198. (2021 IF: 5.598)
Shou-En Chiang, Wen-Hsin Chang, Yu-Ting Chen, Wen-Chung Li, Chi-Tsu Yuan, Ji-Lin Shen, Sheng Hsiung Chang*, "Dislocation characterization in c-plane GaN epitaxial layers on 6 inch Si wafer with a fast second-harmonic generation intensity mapping technique", 2023, Nanotechnology, vol. 34, 155704. (2021 IF: 3.953)
Shou-En Chiang, Pei-Chen Lin, Jia-Ren Wu, Sheng Hsiung Chang* , “Improving the photovoltaic performance of inverted perovskite solar cells via manipulating the molecular packing structure of PCBM” , 2023 , Nanotechnology, vol. 34, p. 015401. (2021 IF: 3.953)
D. Thakur, Q.-B. Ke, S.-E. Chiang, T.-H. Tseng, K.-B. Cai, C.-T. Yuan, J.-S. Wang, Sheng Hsiung Chang*, "Stable and efficient soft perovskite film based solar cells prepared with a facile encapsulation method" 2022, Nanoscale, vol. 14, pp. 17625-17632. (2021 IF: 8.307)
Y.-S. Liao, J.-R. Wu, D. Thakur, J.-S. Hsu, R. P. Dwivedi, Sheng Hsiung Chang*, "Power loss reduction of angled metallic wedge plasmonic waveguides via the interplay between near-field optical coupling and modal coupling" 2022, Photonics, vol. 6, p. 663. (2021 IF: 2.536)
Q. B. Ke, A. Chandel, C.-C. Lin, S.-Y. Liu, S.-E. Chiang, J.-R. Wu, Sheng Hsiung Chang*, "Conformal loading effects of P3CT-Na polymers on the performance of inverted perovskite solar cells " 2022, Processes, vol. 10, p. 1444. (2021 IF: 3.352)
A. Chandel, Q. B. Ke, S.-E. Chiang, Sheng Hsiung Chang*, "Improving device performance of MAPbI3 photovoltaic cells by manipulating the crystal orientation of tetragonal perovskites" 2022, Nanotechnology, vol. 34, p. 415405. (2021 IF: 3.953)
Q. B. Ke, J.-R. Wu, S.-E. Chiang, C.-C. Cheng, Y.-W. Su, I.-J. Hsu, J.-M. Yeh, Sheng Hsiung Chang*, "Improved performance of PCBM/MAPbI3 heterojunction photovoltaic cells with the treatment of a saturated BCP/IPA solution" 2022, Sol. Energy Mater. & Sol. Cells, vol. 242, p. 111782. (2021 IF: 7.305)
Q. B. Ke, J.-R. Wu, C.-C. Lin, Sheng Hsiung Chang*, "Understanding the PEDOT:PSS, PTAA and P3CT-X hole-transport-layer-based inverted perovskite solar cells" 2022, Polymers, vol. 14, p. 823. (2021 IF: 4.963)
A. Chandel, Q. B. Ke, D. Thakur, S.-E. Chiang, J.-R. Wu, K.-B. Cai, C.-T. Yuan, Sheng Hsiung Chang*, "Regioregularity effects of p-type P3CT-Na polymers on inverted perovskite photovoltaic cells" 2022, Organic Electronics, vol. 102, p. 106449. (2021 IF: 3.868)
D. Thakur, S.-E. Chiang, M.-H. Yang, J.-S. Wang, Sheng Hsiung Chang*, "Self-stability of un-encapsulated polycrystalline MAPbI3 solar cells via the formation of chemical bonds between C60 molecules and MA cations" 2022, Solar Energy Materials and Solar Cells, vol. 235, p. 111454. (2021 IF: 7.305)
Sheng Hsiung Chang*, K.-R. Cheng, A. Chandel, J.-R. Wu, J.-L. Shen, S.-H. Chen, "Stable and efficient graded MA0.83Cs0.17Pb(I0.83Br0.17)3 alloy thin film based inverted-type perovskite solar cells" 2021, Energy Technology, vol. 9, p. 2100607. (2020 IF: 3.631)
A. Chandel, J.-R. Wu, D. Thakur, S. Kassou, S.-E. Chiang, K.-J. Cheng, C.-Y. Li, Y.-S. Yen, S.-H. Chen, Sheng Hsiung Chang*, "Improvement of interfacial contact for efficient PCBM/MAPbI3 planar heterojunction solar cells with a binary antisolvent mixture treatment" 2021, Nanotechnology, vol. 32, pp. 485401 (2020 IF: 3.874)
D. Thakur, M.-L. Hsieh, S.-E. Chiang, Y.-S. Yen, W.-R. Liu, Sheng Hsiung Chang*, "Stable and high-efficiency P3CT-Na based MAPbI3 solar cells with a graphene quantum-dots down-converter" 2021, Solar Energy, vol. 225, pp. 882-891. (2020 IF: 5.742)
C.-Y. Li, A. Chandel, J.-R. Wu, D. Thakur, S.-E. Chiang, K.-J. Cheng, S.-H. Chen, J.-L. Shen, Sheng Hsiung Chang*, "Highly efficient and stable P3CT-Na based MAPbI3 solar cells with a Sn-rich ITO anode" 2021, Solar Energy Materials & Solar Cells, vol. 231, p. 111305. (2020 IF: 7.267)
Said Kassou, Jia-Ren Wu, Diksha Thakur, Anjali Chandel, Shou-En Chiang, Kai-Jen Cheng, Sheng-Hui Chen, Ji-Lin Shen, Sheng Hsiung Chang* , “Efficiency improvement of P3CT-Na based MAPbI3 solar cells with a simple wetting process” , 2021 , Nanotechnology, vol. 32, p. 345402. (2020 IF: 3.874)
S.-E. Chiang, Q.-B. Ke, A. Chandel, H.-M. Cheng, Y.-S. Yen, J.-L. Shen, Sheng Hsiung Chang*, "19% efficient P3CT-Na based MAPbI3 solar cells with a simple double-filtering process" 2021, Polymers, vol. 13. p. 886. (2020 IF: 4.329)
S.-E. Chiang, A. Chandel, D. Thakur, Y.-T. Chen, P.-C. Lin, J.-R. Wu, K.-B. Cai, S. Kassou, J.-M. Yeh, C.-T. Yuan, J.-L. Shen, Sheng Hsiung Chang*, “On the role of solution-processed bathocuproine in high-efficiency inverted perovskite solar cells” 2021, Solar Energy, vol. 218, pp. 142-149. (2020 IF: 5.742)
C.-J. Chen, A. Chandel, D. Thakur, J.-R. Wu, S.-E. Chiang, G.-S. Zeng, J.-L. Shen, S.-H. Chen, Sheng Hsiung Chang*, "Ag modified bathocuproine: ZnO nanoparticles electron buffer layer based bifacial inverted-type perovskite solar cells" 2021, Organic Electronics, vol. 92, p. 106110. (2020 IF: 3.721)
Y.-T. Chen, A. Chandel, J.-R. Wu, Sheng Hsiung Chang*, "Coupled periodically electric quadrupoles assisted ultra-broadband light-extraction enhancement of red GaN LEDs by manipulating the field orthogonality at nanoscales" 2021, Chinese Journal of Physics, vol. 70, pp. 188-195. (2020 IF: 3.237)
C.-Y. Li, Y.-S. Liao, D. Thakur, A. Chandel, S.-E. Chiang, J.-R. Wu, P.-H. Lee, C.-L. Tsai, C.-C. Yang, Y.-L. Zhong, J.-L. Shen, Sheng Hsiung Chang*, "Anti-solvent mixture-mediated reduction of photocurrent hysteresis in high-impurity perovskite precursor based MAPbI3 solar cells" 2021, Solar Energy, vol. 214, pp. 86-92. (2020 IF: 5.742)
D. Thakur, J.-R. Wu, A. Chandel, K.-R. Cheng, S.-E. Chiang, K.-B. Cai, S.-H. Chen, C.-C. Yang, Y.-L. Zhong, C.-T. Yuan, J.-L. Shen, Sheng Hsiung Chang*, "Structural, optical and excitonic properties of urea grading doped CH3NH3PbI3 thin films and their application in inverted-type perovskite solar cells" 2021, Journal of Alloys and Compounds, vol. 858, p. 157660. (2020 IF: 5.316)
Y.-S. Liao, P.-H. Lee, H.-Q. Shen, J.-R. Wu, Sheng Hsiung Chang*, “Wedge angle-dependent propagation characteristics of two coupled semi-infinite Au rib nanoplasmonic waveguides” 2021, Plasmonics, vol. 16, pp. 227-232. (2020 IF: 2.404)
J.-R. Wu, S. Kassou, D. Thakur, R. P. Dwivedi, Sheng Hsiung Chang*, "Wavelength-dependent optical chiralities of symmetric and asymmetric 2-shaped Au-nanorod structures at nanoscales" 2020, Plasmonics, vol. 15, pp. 2053-2059. (2019 IF: 2.335)
D. Thakur, J.-R. Wu, A. Chandel, S.-Y.-Lou, P.-C. Lin, D. Luo, J.-M. Yeh, H.-M. Cheng, Sheng Hsiung Chang*, "Highly efficient solar-heat shield based on the bipolaron-assisted PEDOT:PSS thin film" 2020, Chinese Journal of Physics, vol 66, pp. 102-108. (2019 IF: 2.638)
Sheng Hsiung Chang*, P.-C. Tseng, S.-E. Chiang, J.-R. Wu, Y.-T. Chen, C.-J. Chen, C.-T. Yuan, S.-H. Chen, "Structural, optical and excitonic properties of MAxCs1-xPb(IxBr1-x)3 alloy thin films and their application in solar cells" 2020, Solar Energy Materials & Solar Cells, vol. 210, p. 110478. (2019 IF: 6.984)
C.-L. Tsai, Y.-C. Lu, S.-E. Chiang, C.-M. Yu, H.-M. Cheng, C.-L. Hsu, K. Y. Chiu, Sheng Hsiung Chang*, "Bright and fast-response perovskite light-emitting diodes with a ICBA:modified-C60 nanocomposite electrical confinement layer" 2020, Nanoscale, vol. 12, pp. 4061-4068. (2019 IF: 6.895)
S.-E. Chiang, J.-R. Wu, H.-M. Cheng, C.-L. Hsu, J.-L. Shen, C.-T. Yuan, Sheng Hsiung Chang*, "Origins of the s-shape characteristic in J-V curve of inverted-type perovskite solar cells" 2020, Nanotechnology, vol. 31, p. 115403 (2019 IF:3.551).
J.-R. Wu, D. Thakur, S.-E. Chiang, A. Chandel, J.-S. Wang, K.-C. Chiu, Sheng Hsiung Chang*, "The way to pursue truly high-performance perovskite solar cells" 2019, Nanomaterials, vol. 9, p. 1269. (2019 IF: 4.324).
Sheng Hsiung Chang*, S.-D. Wong, H.-Y. Huang, C.-T. Yuan, J.-R. Wu, S.-E. Chiang, Z.-L. Tseng, S.-H. Chen, "Effects of the washing-enhanced nucleation process on the material properties and performance of perovskite solar cells" 2019, Journal of Alloys and Compounds, vol. 808, p. 151723. (2019 IF: 4.65)
Y.-T. Chen; J.-R. Wu; D. Thakur; H.-M. Cheng; Sheng Hsiung Chang*, "Efficiency enhancement of light extraction from an air/GaN interface via nanogap-induced mode splitting" 2019, Advanced Theory and Simulations, vol. 2, p. 1900073. (2019 IF: 2.951)
M.-K. Lai; J.-R. Wu; J.-M. Yeh; Sheng Hsiung Chang*, "Unraveling the modified PEDOT:PSS thin films based near-infrared solar-heat shields by using broadband transmittance and Raman scattering spectrometers" 2019, Phys. Status Solidi A, vol. 216, p. 1900025. (2019 IF: 1.759)
K.-M. Lee; K.-S. Chen; J.-R. Wu; Y.-D. Lin; S.-M. Yu; Sheng Hsiung Chang*, “Highly efficient and stable semi-transparent perovskite solar modules with a trilayer anode electrode” 2018, Nanoscale, vol. 10, p. 17699-17704. (2019 IF: 6.895)
Sheng Hsiung Chang*; W.-C. Huang; C.-C. Chen; S.-H. Chen; C.-G. Wu, “Effects of anti-solvent (iodobenzene) volume on the formation of CH3NH3PbI3 thin films and their application in photovoltaic cells” 2018, Applied Surface Science, vol. 445 , p. 24-29. (2019 IF: 6.182)
K. Y. Chiu, Sheng Hsiung Chang*, W.-C. Huang, H.-M. Cheng, H. Shaw, S.-C. Yeh, C.-T. Chen, Y. Oliver Su., S.-H. Chen and C.-G. Wu, “Functional graded fullerene derivatives for improving the fill factor and device stability of inverted-type perovskite solar cells” 2018, Nanotechnology, vol. 29 , p. 305701-305701. (2019 IF: 3.551)
Chia-Lung Tsai;Yi-Chen Lu; Sheng Hsiung Chang*, “Enhancement of photocurrent extraction and electron injection in dual-functional CH3NH3PbBr3 perovskite-based optoelectronic devices via interfacial engineering” 2018, Nanotechnology, vol. 29, p. 275704-275704. (2019 IF: 3.551)
L.-C. Chen; C.-C. Chen; Sheng Hsiung Chang*; K.-L. Lee; Z.-L. Tseng; S.-H. Chen; H.-C. Kuo, “Formation and characterization of preferred oriented perovskite thin films on single-crystalline substrates” 2018, Materials Research Express, vol. 5, p. 066403-066403. (2019 IF: 1.929)

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