Optical and electrical characteristics of lead-free Cu-based halide perovskites in electrospun polystyrene nanofibers. Saputra, V. B., Haposan, T., Kowal, D., Tanaya, P. A. P., Chairunisa, W., Hartati, S., Zhang, L., Suwardy, J., Mufti, N., Zulfi, A., Diguna, L. J., Handayani, I. P., Birowosuto, M. D., Lestari, W. W., & Arramel, A. Journal of Materials Chemistry C, 13(47):23589–23600, 2025.
Optical and electrical characteristics of lead-free Cu-based halide perovskites in electrospun polystyrene nanofibers [link]Paper  doi  abstract   bibtex   
CHPs–PS nanofibers exhibit enhanced optical emission and tunnelling-driven electrical transport, highlighting their potential for next-generation optoelectronic devices. , Cesium halide perovskites (CHPs) are highly regarded for their low toxicity and resistance to degradation, positioning them as promising candidates for optoelectronic devices. Incorporating CHPs into polymer matrices has further enhanced their stability, as the polymer's long molecular chains provide effective protection. Herein, we successfully incorporated CHPs into polystyrene (PS) via electrospinning using a post-encapsulation method. In this study, we examined the optical and electrical characteristics of CHPs–PS nanofibers with PS concentrations of 5 wt% and 25 wt%. The encapsulation of CHPs into the PS matrix enhances the absorption intensity and influences the emitted PL intensity, with higher PS concentrations resulting in reduced intensity due to the complete coverage of CHPs by the PS. In this study, CHPs–PS nanofibers also exhibit photoluminescence (PL) decay with a fast component ( τ 1 ) of up to 3 ns and an average decay time τ avg of approximately 100 ns. To the best of our knowledge, CHPs–PS nanofibers exhibit a shorter average decay times ( τ avg ) compared to pristine CHPs. The CHPs–PS nanofibers exhibit a tunnelling charge transport mechanism based on the I – V characteristics obtained. The non-linear I – V curves are attributed to the formation of a Schottky barrier, a potential barrier created at the metal–semiconductor interface when the two are connected. The findings of this study provide valuable insights into the development of CHP-incorporated polymer nanofibers, offering promising potential for applications in optoelectronic devices with exceptional optical and electrical characteristics.
@article{saputraOpticalElectricalCharacteristics2025,
	title = {Optical and electrical characteristics of lead-free {Cu}-based halide perovskites in electrospun polystyrene nanofibers},
	volume = {13},
	issn = {2050-7526, 2050-7534},
	url = {https://xlink.rsc.org/?DOI=D5TC03393D},
	doi = {10.1039/D5TC03393D},
	abstract = {CHPs–PS nanofibers exhibit enhanced optical emission and tunnelling-driven electrical transport, highlighting their potential for next-generation optoelectronic devices.
          , 
            
              Cesium halide perovskites (CHPs) are highly regarded for their low toxicity and resistance to degradation, positioning them as promising candidates for optoelectronic devices. Incorporating CHPs into polymer matrices has further enhanced their stability, as the polymer's long molecular chains provide effective protection. Herein, we successfully incorporated CHPs into polystyrene (PS)
              via
              electrospinning using a post-encapsulation method. In this study, we examined the optical and electrical characteristics of CHPs–PS nanofibers with PS concentrations of 5 wt\% and 25 wt\%. The encapsulation of CHPs into the PS matrix enhances the absorption intensity and influences the emitted PL intensity, with higher PS concentrations resulting in reduced intensity due to the complete coverage of CHPs by the PS. In this study, CHPs–PS nanofibers also exhibit photoluminescence (PL) decay with a fast component (
              τ
              1
              ) of up to 3 ns and an average decay time
              τ
              avg
              of approximately 100 ns. To the best of our knowledge, CHPs–PS nanofibers exhibit a shorter average decay times (
              τ
              avg
              ) compared to pristine CHPs. The CHPs–PS nanofibers exhibit a tunnelling charge transport mechanism based on the
              I
              –
              V
              characteristics obtained. The non-linear
              I
              –
              V
              curves are attributed to the formation of a Schottky barrier, a potential barrier created at the metal–semiconductor interface when the two are connected. The findings of this study provide valuable insights into the development of CHP-incorporated polymer nanofibers, offering promising potential for applications in optoelectronic devices with exceptional optical and electrical characteristics.},
	language = {en},
	number = {47},
	urldate = {2026-06-22},
	journal = {Journal of Materials Chemistry C},
	author = {Saputra, Vito Bintang and Haposan, Tobias and Kowal, Dominik and Tanaya, Pramudita Anindita Prakasa and Chairunisa, Wulan and Hartati, Sri and Zhang, Lei and Suwardy, Joko and Mufti, Nandang and Zulfi, Akmal and Diguna, Lina Jaya and Handayani, Ismudiati Puri and Birowosuto, Muhammad Danang and Lestari, Witri Wahyu and Arramel, Arramel},
	year = {2025},
	pages = {23589--23600},
}
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