TY - JOUR
T1 - Proton Irradiation Tolerance of High-Efficiency Perovskite Absorbers for Space Applications
AU - Kanaya, Shusaku
AU - Kim, Gyu Min
AU - Ikegami, Masashi
AU - Miyasaka, Tsutomu
AU - Suzuki, Kohtaku
AU - Miyazawa, Yu
AU - Toyota, Hiroyuki
AU - Osonoe, Kanta
AU - Yamamoto, Tomoyuki
AU - Hirose, Kazuyuki
N1 - Funding Information:
This research was supported by the Space Exploration Innovation Hub Center, JSPS KAKENHI. S.K thanks Y. Sanehira, Y. Numata, Y. Hazama, H. Akiyama, and D. Erdmann for their valuable assistance.
Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019/11/21
Y1 - 2019/11/21
N2 - Lead halide perovskite single layers with three grain sizes are subjected to proton-beam irradiation in order to assess the durability and radiation tolerance of perovskite solar cells (PSCs) against space radiation. Proton-beam irradiation is chosen because proton beams significantly affect solar cell performance in the space environment. We evaluate the effects of proton beams by focusing on the grain structure, crystal structure, and carrier lifetime of a perovskite single layer by using scanning electron microscopy, X-ray diffraction, photoluminescence (PL) spectra, and time-resolved PL (TRPL). The results show that proton irradiation does not significantly affect the grain structure and crystal structure of perovskite layer; the TRPL results show that the carrier lifetime inside the grain is constant up to a fluence of 1 × 1014 p+/cm2 and decreases significantly at a fluence of 1 × 1015 p+/cm2. Proton-beam radiation tolerance of the grain inside the perovskite layer is dominant in the radiation tolerance of PSCs.
AB - Lead halide perovskite single layers with three grain sizes are subjected to proton-beam irradiation in order to assess the durability and radiation tolerance of perovskite solar cells (PSCs) against space radiation. Proton-beam irradiation is chosen because proton beams significantly affect solar cell performance in the space environment. We evaluate the effects of proton beams by focusing on the grain structure, crystal structure, and carrier lifetime of a perovskite single layer by using scanning electron microscopy, X-ray diffraction, photoluminescence (PL) spectra, and time-resolved PL (TRPL). The results show that proton irradiation does not significantly affect the grain structure and crystal structure of perovskite layer; the TRPL results show that the carrier lifetime inside the grain is constant up to a fluence of 1 × 1014 p+/cm2 and decreases significantly at a fluence of 1 × 1015 p+/cm2. Proton-beam radiation tolerance of the grain inside the perovskite layer is dominant in the radiation tolerance of PSCs.
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U2 - 10.1021/acs.jpclett.9b02665
DO - 10.1021/acs.jpclett.9b02665
M3 - Article
C2 - 31657220
AN - SCOPUS:85074753735
SN - 1948-7185
VL - 10
SP - 6990
EP - 6995
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
IS - 22
ER -