Single-crystal organometallic perovskite optical fibers.
Single-crystal organometallic perovskite optical fibers.
复制标题
DOI：
10.1126/sciadv.abq8629
复制
发表时间：
2022-09-23
期刊：
影响因子：
13.6
通讯作者：
中科院分区：
文献类型：
--
作者：
光纤形式的半导体是可取的。单晶有机金属卤化物钙钛矿具有诱人的光电性能，是理想的光纤平台。然而，由于溶液中单向单晶生长的挑战，单晶有机金属钙钛矿光纤的研究尚未见报道。在这里，我们报道了一种溶液处理的方法，以连续生长直径和长度可控的单晶金属有机钙钛矿光纤。用我们的方法制作的单晶MAPbBr3(MA=CH3NH3+)钙钛矿光纤，在有机金属钙钛矿光纤中表现出低的传输损耗(<；0.7dB/cm)、机械柔韧性(弯曲半径可达3.5 mm)和机械变形可调的光致发光。此外，我们的有机金属钙钛矿光纤提供的光限制导致了三光子吸收(3PA)，而在相同的实验条件下，大块单晶的三光子吸收为2PA。单晶有机金属钙钛矿光纤在未来的光电子应用中具有很大的潜力。在溶液中可以生长出具有合适光电性能的单晶卤化物钙钛矿光纤。
Semiconductors in their optical-fiber forms are desirable. Single-crystal organometallic halide perovskites have attractive optoelectronic properties and therefore are suitable fiber-optic platforms. However, single-crystal organometallic perovskite optical fibers have not been reported before due to the challenge of one-directional single-crystal growth in solution. Here, we report a solution-processed approach to continuously grow single-crystal organometallic perovskite optical fibers with controllable diameters and lengths. For single-crystal MAPbBr3 (MA = CH3NH3+) perovskite optical fiber made using our method, it demonstrates low transmission losses (<0.7 dB/cm), mechanical flexibilities (a bending radius down to 3.5 mm), and mechanical deformation–tunable photoluminescence in organometallic perovskites. Moreover, the light confinement provided by our organometallic perovskite optical fibers leads to three-photon absorption (3PA), in contrast with 2PA in bulk single crystals under the same experimental conditions. The single-crystal organometallic perovskite optical fibers have the potential in future optoelectronic applications. A single-crystal halide perovskite optical fiber with suitable optoelectronic performances can be grown in solution.
登录
查看更多内容
影响因子：
56.9
作者：
Lee, Michael M.;Teuscher, Joel;Snaith, Henry J.
通讯作者：
Snaith, Henry J.
影响因子：
64.8
作者：
Bayindir, M;Sorin, F;Fink, Y
通讯作者：
Fink, Y
影响因子：
4.7
作者：
Cutolo, A;Iodice, M;Zeni, L
通讯作者：
Zeni, L
影响因子：
16.6
作者：
Chen Z;Dong Q;Liu Y;Bao C;Fang Y;Lin Y;Tang S;Wang Q;Xiao X;Bai Y;Deng Y;Huang J
通讯作者：
Huang J
影响因子：
16.6
作者：
Bi C;Wang Q;Shao Y;Yuan Y;Xiao Z;Huang J
通讯作者：
Huang J