Planar-integrated single-crystalline perovskite photodetectors

Makhsud I. Saidaminov, Valerio Adinolfi, Riccardo Comin, Ahmed L. Abdelhady, Wei Peng, Ibrahim Dursun, Mingjian Yuan, Sjoerd Hoogland, Edward H. Sargent, Osman M. Bakr

Research output: Contribution to journalArticlepeer-review

636 Scopus citations


Hybrid perovskites are promising semiconductors for optoelectronic applications. However, they suffer from morphological disorder that limits their optoelectronic properties and, ultimately, device performance. Recently, perovskite single crystals have been shown to overcome this problem and exhibit impressive improvements: low trap density, low intrinsic carrier concentration, high mobility, and long diffusion length that outperform perovskite-based thin films. These characteristics make the material ideal for realizing photodetection that is simultaneously fast and sensitive; unfortunately, these macroscopic single crystals cannot be grown on a planar substrate, curtailing their potential for optoelectronic integration. Here we produce large-area planar-integrated films made up of large perovskite single crystals. These crystalline films exhibit mobility and diffusion length comparable with those of single crystals. Using this technique, we produced a high-performance light detector showing high gain (above 10 4 electrons per photon) and high gain-bandwidth product (above 10 8 Hz) relative to other perovskite-based optical sensors.

Original languageBritish English
Article number8724
JournalNature Communications
StatePublished - 9 Nov 2015


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