High-Performance Near-IR Photodetector Using Low-Bandgap MA(0.5)FA(0.5)Pb(0.5)Sn(0.5)I(3) Perovskite

Xu Xiaobao; Chueh Chu-Chen; Jing Peifeng; Yang Zhibin; Shi Xueliang; Zhao Ting; Lin Lih Y.; Jen Alex K. -Y.

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High-Performance Near-IR Photodetector Using Low-Bandgap MA(0.5)FA(0.5)Pb(0.5)Sn(0.5)I(3) Perovskite

机译：使用低禁带MA（0.5）FA（0.5）Pb（0.5）Sn（0.5）I（3）钙钛矿的高性能近红外光电探测器

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Photodetectors with ultrafast response are explored using inorganic/organic hybrid perovskites. High responsivity and fast optoelectronic response are achieved due to the exceptional semiconducting properties of perovskite materials. However, most of the perovskite-based photodetectors exploited to date are centered on Pb-based perovskites, which only afford spectral response across the visible spectrum. This study demonstrates a high-performance near-IR (NIR) photodetector using a stable low-bandgap Sn-containing perovskite, (CH3NH3)(0.5)(NH2CHNH2)(0.5)Pb0.5Sn0.5I3 (MA(0.5)FA(0.5)Pb(0.5)Sn(0.5)I(3)), which is processed with an antioxidant additive, ascorbic acid (AA). The addition of AA effectively strengthens the stability of Sn-containing perovskite against oxygen, thereby significantly inhibiting the leakage current. Consequently, the derived photodetector shows high responsivity with a detectivity of over 10(12) Jones ranging from 800 to 970 nm. Such low-cost, solution processable NIR photodetectors with high performance show promising potential for future optoelectronic applications.

机译：使用无机/有机杂化钙钛矿探索具有超快响应的光电探测器。钙钛矿材料具有非凡的半导体性能，因此可以实现高响应性和快速光电响应。但是，迄今为止，大多数基于钙钛矿的光电探测器都集中在基于Pb的钙钛矿上，后者只能提供可见光谱范围内的光谱响应。这项研究证明了使用稳定的低带隙含Sn钙钛矿（CH3NH3）（0.5）（NH2CHNH2）（0.5）Pb0.5Sn0.5I3（MA（0.5）FA（0.5）的高性能近红外（NIR）光电探测器）Pb（0.5）Sn（0.5）I（3）），用抗氧化剂抗坏血酸（AA）处理。添加AA有效地增强了含锡的钙钛矿对氧气的稳定性，从而显着抑制了漏电流。因此，派生的光电探测器显示出高响应性，探测率超过800到970 nm的10（12）Jones。这种具有高性能的低成本，可解决方案的近红外光电探测器在未来的光电应用中显示出广阔的前景。

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来源
《Advanced Functional Materials》 |2017年第28期|1701053.1-1701053.6|共6页
作者
Xu Xiaobao; Chueh Chu-Chen; Jing Peifeng; Yang Zhibin; Shi Xueliang; Zhao Ting; Lin Lih Y.; Jen Alex K. -Y.;
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Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA;

Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA|Natl Taiwan Univ, Dept Chem Engn, Taipei, Taiwan;

Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA;

Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA;

Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA;

Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA;

Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA;

Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA|City Univ Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong, Peoples R China;

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正文语种 eng
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关键词
low bandgap; near-IR; perovskites; photodetectors;

机译：低带隙;近红外;钙钛矿;光电探测器;

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机译：用于全钙钛矿串联太阳能电池的低带隙薄膜（FA_（0.8）MA_（0.2）Sn_（0.5）Pb_（0.5）I_3）的真空辅助生长
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3. Flexible Lead-Free Perovskite Oxide Multilayer Film Capacitor Based on (Na_(0.8)K_(0.2))_(0.5)Bi_(0.5)TiO_3/Ba_(0.5)Sr_(0.5)(Ti_(0.97)Mn_(0.03))O_3 for High-Performance Dielectric Energy Storage [J] . Advanced energy materials . 2020,第14期

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5. Solid state synthesis and characterization of the rare earth-free anti-perovskites Sr2.5-xBa0.5Al1-xP xO4F (0 less than or equal to x less than or equal to 0.15), Sr3Al1-xY xO4F (0 less than or equal to x less than or equal to 1), and Sr2.5-x/2Ba0.5 Al1-xHfxO4F (0 less than or equal to x less than or equal to 0.1) as potential phosphor materials. [D] . Keil, Sean T. 2016

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6. Elastic and anelastic relaxation behaviour of perovskite multiferroics II: PbZr0.53Ti0.47O3 (PZT)–PbFe0.5Ta0.5O3 (PFT) [O] . J. A. Schiemer, I. Lascu, R. J. Harrison, -1

机译：钙钛矿多铁化合物的弹性和非弹性松弛行为II：PbZr0.53Ti0.47O3（PZT）–PbFe0.5Ta0.5O3（PFT）
7. Co-Solvent Controllable Engineering of MA0.5FA0.5Pb0.8Sn0.2I3 Lead–Tin Mixed Perovskites for Inverted Perovskite Solar Cells with Improved Stability [O] . Lung-Chien Chen, Ching-Ho Tien, Yang-Cheng Jhou, 2020

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High-Performance Near-IR Photodetector Using Low-Bandgap MA(0.5)FA(0.5)Pb(0.5)Sn(0.5)I(3) Perovskite

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