The main issues in planar perovskite solar cells are the coverage and crystallinity of the perovskite film on the PEDOT:PSS layer. To enhance these features, we introduced alkali metal halides (salts) as additives into the perovskite precursor solution used in a two-step preparation method. These alkali metal halides chelate with Pb2+ ions and enhance the crystal growth of PbI2 films, resulting in nanostructured morphologies. The nanostructured PbI2 films promote homogeneous nucleation and larger crystallite sizes, thereby enhancing the morphology and crystallinity of the perovskite films. The alkali metal halides recrystallize the small grains and passivate the grain boundaries and interface states, allowing effective charge generation and dissociation in perovskite films. Photoluminescence measurements indicated that perovskite films prepared with salt additives featured fewer charge traps and defects. The power conversion efficiency of the device incorporating a small amount of a salt additive increased by approximately 33%-from 11.4 to 15.08%. This device was more stable than a corresponding device prepared without the additive, with only 16.5% degradation occurring over a period of 50 days.
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Chen, Qi
;
Zhou, Huanping
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机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Zhou, Huanping
;
Hong, Ziruo
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Hong, Ziruo
;
Luo, Song
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Luo, Song
;
Duan, Hsin-Sheng
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Duan, Hsin-Sheng
;
Wang, Hsin-Hua
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Wang, Hsin-Hua
;
Liu, Yongsheng
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h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Liu, Yongsheng
;
Li, Gang
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h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Li, Gang
;
Yang, Yang
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机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Chueh, Chu-Chen
;
Liao, Chien-Yi
论文数: 0引用数: 0
h-index: 0
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Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Liao, Chien-Yi
;
Zuo, Fan
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Zuo, Fan
;
Williams, Spencer T.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Williams, Spencer T.
;
Liang, Po-Wei
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Liang, Po-Wei
;
Jen, Alex K-Y
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Univ Washington, Dept Chem, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Chen, Qi
;
Zhou, Huanping
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Zhou, Huanping
;
Hong, Ziruo
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Hong, Ziruo
;
Luo, Song
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Luo, Song
;
Duan, Hsin-Sheng
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Duan, Hsin-Sheng
;
Wang, Hsin-Hua
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Wang, Hsin-Hua
;
Liu, Yongsheng
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Liu, Yongsheng
;
Li, Gang
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Li, Gang
;
Yang, Yang
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAUniv Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Chueh, Chu-Chen
;
Liao, Chien-Yi
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Liao, Chien-Yi
;
Zuo, Fan
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Zuo, Fan
;
Williams, Spencer T.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Williams, Spencer T.
;
Liang, Po-Wei
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Liang, Po-Wei
;
Jen, Alex K-Y
论文数: 0引用数: 0
h-index: 0
机构:
Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
Univ Washington, Dept Chem, Seattle, WA 98195 USAUniv Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA