Full-Color High-Resolution Inkjet-Printed Perovskite Imager with Monolithically Integrated Thin-Film Transistor Array

Full-Color High-Resolution Inkjet-Printed Perovskite Imager with Monolithically Integrated Thin-Film Transistor Array | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Full-Color High-Resolution Inkjet-Printed Perovskite Imager with Monolithically Integrated Thin-Film Transistor Array Zhiyong Fan, YIYI ZHU, Zhichao ZHOU, Swapnadeep Poddar, Shivam Kumar, and 6 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9324357/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 8 You are reading this latest preprint version Abstract Full-colour imagers are essential for capturing both spatial and spectral information, yet conventional architectures rely on broadband photodiodes integrated with passive colour filters, which introduce optical losses and constrain pixel density and colour fidelity. Here we report a full-colour perovskite imaging sensor based on the monolithic integration of inkjet-printed perovskite photodetector (PPD) arrays with a thin-film transistor (TFT) backplane. In this architecture, colour discrimination is achieved through vertically stacked perovskite photoactive and filter layers, enabling intrinsic narrowband photodetection without external optical filters. To realize high-resolution integration on TFT circuitry, we develop an inkjet-printing strategy based on controlled droplet dynamics, substrate superhydrophilicity and regulated nucleation/crystallization, which suppresses coffee-ring formation and enables uniform, defect-minimized perovskite micropatterns. The resulting active-matrix imager features 30 µm patterned perovskite pixels on a 160 µm Bayer-pattern pitch, corresponding to a 64 × 64 colour-pixel array with a resolution of 159 pixels per inch. The red, green and blue PPDs exhibit narrowband spectral selectivity over 570–750, 500–570 and 450–500 nm, respectively, together with high responsivity, low dark current, linear dynamic ranges of up to 24.83 dB, and self-powered operation with a − 3 dB bandwidth of 140 Hz. Using a custom-built readout platform, we further demonstrate faithful colour image acquisition and reconstruction. This work establishes inkjet-printed perovskite/TFT integration as a scalable route towards compact, lightweight and high-performance full-colour imaging systems. Physical sciences/Optics and photonics/Optical techniques/Imaging and sensing Physical sciences/Optics and photonics/Applied optics/Optical sensors Perovskite photodetectors Inkjet printing Monolithic integration Full-color imaging Micro-patterning Spectral selectivity Full Text Additional Declarations There is no conflict of interest Supplementary Files Superhydrophilicsurfacecontactangletestvideo.avi Superhydrophilic surface contact angle test video 2.SupportinginfomationFullColorHighResolutionInkjetPrintedPerovskiteImagerwithMonolithicallyIntegratedThinFilmTransistorArrayV7LightScienceApplications.docx Supporting infomation_Full-Color High-Resolution Inkjet-Printed Perovskite Imager with Monolithically Integrated Thin-Film Transistor Array VideoofinkjetprintedperovskiteCs0.05FA0.83MA0.125PbBr0.33I2.67.avi Video of inkjet-printed perovskite-Cs0.05FA0.83MA0.125PbBr0.33I2.67 VideoofinkjetprintedperovskiteCsPbBr3.avi Video of inkjet-printed perovskite-CsPbBr3 VideoofinkjetprintedperovskiteBA0.05Cs0.83PbBr3.avi Video of inkjet-printed perovskite-BA0.05Cs0.83PbBr3 2.SupportinginfomationFullColorHighResolutionInkjetPrintedPerovskiteImagerwithMonolithicallyIntegratedThinFilmTransistorArrayV8LightScienceApplications.docx Supporting infomation_Full-Color High-Resolution Inkjet-Printed Perovskite Imager with Monolithically Integrated Thin-Film Transistor Array Cite Share Download PDF Status: Under Review Version 1 posted Reviewer # 3 agreed at journal 15 Apr, 2026 Reviewer # 2 agreed at journal 11 Apr, 2026 Reviewer # 1 agreed at journal 08 Apr, 2026 Reviewers invited by journal 07 Apr, 2026 Submission checks completed at journal 07 Apr, 2026 First submitted to journal 07 Apr, 2026 Unknown event 05 Apr, 2026 Editor assigned by journal 05 Apr, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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