Impact of gamma-ray irradiation on the electronic structures of PCBM and P3HT organic semiconductor films

Park, Sohyun; Choi, Seungsun; Lee, Hyunchan; Woo, Yunseo; Jung, Yu‐Jin; Jung, Young Mee; Jeong, Junkyeong; Park, Jeehong; Yi, Yeonjin; Park, Soo Hyung

doi:10.1016/j.polymdegradstab.2021.109518

Cited by 10 publications

(7 citation statements)

References 38 publications

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“…High energy ionizing radiation such as proton, 13 gammaray, [14][15][16][17][18][19][20] UV treatment, [21][22][23][24][25] and X-ray 15 has been utilized as an alternative approach for tailoring the structural and electrical conductivities of the lms. Usually, these approaches are temperature independent and in turn results in material with higher purity.…”

Section: Introductionmentioning

confidence: 99%

Consequences of gamma-ray irradiation on structural and electronic properties of PEDOT:PSS polymer in air and vacuum environments

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Consequences of gamma-ray irradiation on structural and electronic properties of PEDOT:PSS polymer in air and vacuum environments

et al. 2021

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“…Hence, it becomes a major factor contributing to the components' ability to function properly in harsh radiation environments. Interaction of ionizing radiation with matter, especially gamma radiation, is crucial in both theoretical and practical [4][5][6][7][8][9] . Hence, the effect of gamma radiation on the structural, optical and electrical properties of various organic thin films and semiconductor electronics was widely investigated.…”

Section: Introductionmentioning

confidence: 99%

“…TIPS Pentacene represents one of the most promising organic semiconductor materials for low-cost, flexible electronic devices due to its high solubility in common organic solvents and good environmental stability [2][3][4][5] . TIPS Pentacene is a conjugated form of pentacene commonly used for small molecule organic semiconductors due to the *e-mail: fpchee06@ums.edu.my bulky functionalized group that helps increase solubilities [6][7][8] . TIPS Pentacene has a two-dimension π-stacking molecular structure that helps improve mobility 18 .…”

Section: Introductionmentioning

confidence: 99%

Structural and Optical Properties of TIPS Pentacene Thin Film Exposed to Gamma Radiation

et al. 2022

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This study investigates the effects of Gamma-irradiation on the structural, morphological and optical properties of 3,16-bis(tri isopropyl silylethynyl)pentacene (TIPS Pentacene) organic semiconductor films. The TIPS Pentacene thin films were irradiated at 10 to 300 kGy at a dose rate of 1.58 kGy/hr. The films were characterized using X-Ray Diffractometer (XRD), Atomic Force Microscopy (AFM) and Ultraviolet-Visible Spectroscopy (UV-Vis). The XRD analysis showed that the pre-irradiated thin films were of crystalline structure, indicating a broad wave diagram. The XRD and AFM results show that these variations can be attributed to the radiation-induced local heating and microscopic atomic mobility. Based on the UV-Vis results, the thin films exhibit approximately 70% optical transmittance in the visible region at pre-irradiation. At post-irradiation, optical transmittance decreased to 55% at the maximum absorbed dose. The corresponding optical bandgap decreased from 1.87 to 1.50 eV after a total ionizing dose of 300 kGy. The findings showed that TIPS Pentacene thin film has good mitigation towards gamma irradiation and can withstand harsh radiation while retaining its semiconductor properties. It is a potential candidate for flexible electronics for space applications.

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“…PEDOT:PSS has been reported to lose its conductivity, mobility, and carrier concentration upon exposure to irradiation . Similarly, PCBM is highly oxidized when exposed to irradiation in ambient conditions . As summarized in Table , the devices retained 82 and 78% of their initial efficiencies after 3 and 9 kGy irradiation, respectively.…”

Section: Resultsmentioning

confidence: 96%

“…48 Similarly, PCBM is highly oxidized when exposed to irradiation in ambient conditions. 49 As summarized in Table 1, the devices retained 82 and 78% of their initial efficiencies after 3 and 9 kGy irradiation, respectively. At 15 kGy, a dramatic loss of 52% of the initial efficiency was observed, attributable to a significant reduction (62% of the initial value) in the FF.…”

Section: Psc Preparation and Electron Irradiation Settingsmentioning

confidence: 90%

Radiation Tolerance of Organohalide-Based Perovskite Solar Cells under 6 MeV Electron Beam Irradiation

Kim,

Lee,

Shah

et al. 2024

J. Phys. Chem. C

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This study presents a preliminary investigation of the application of MAPbI 3 perovskite solar cells (PSCs) as dosimeters for space and medical purposes. Specifically, it explores the effects of 6 MeV electron beam exposure on the performance and degradation mechanisms of PSC devices. The study also employs crystallographic, optical, and simulation-based analyzes to gain insights into the degradation process. The findings of this research lay the groundwork for the development of an advanced radiation detection structure, combining a scintillator with a photocounting PSC device, as a potential replacement for existing silicon photomultipliers in the future. The PSC devices exhibit an initial power conversion efficiency of approximately 14%. However, under electron fluences ranging from 3 to 21 kGy, a gradual degradation is observed, characterized by a decline in open-circuit voltage and short-circuit current. Beyond the 9 kGy threshold, the device performance deteriorates significantly, with a 52% decrease compared with the initial performance, which is primarily attributed to a decrease in the fill factor. Through X-ray diffraction, time-resolved photoluminescence, and density functional theory simulations, the research uncovers that continuous electron beam exposure induces the formation of crystallographic defects and shallow traps, leading to the gradual deterioration of device performance postirradiation.

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Impact of gamma-ray irradiation on the electronic structures of PCBM and P3HT organic semiconductor films

Cited by 10 publications

References 38 publications

Consequences of gamma-ray irradiation on structural and electronic properties of PEDOT:PSS polymer in air and vacuum environments

Consequences of gamma-ray irradiation on structural and electronic properties of PEDOT:PSS polymer in air and vacuum environments

Structural and Optical Properties of TIPS Pentacene Thin Film Exposed to Gamma Radiation

Radiation Tolerance of Organohalide-Based Perovskite Solar Cells under 6 MeV Electron Beam Irradiation

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