Enhanced optoelectronic performance of MWCNT/n-Si Schottky photodetectors via cryogenic treatment of carbon nanotubes

RSC Advances 2026 Open access

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Authors: Ali Akbar Hussaini, Dilber Esra Yıldız, Filiz Boran, Murat Yıldırım
DOI: 10.1039/d6ra04019e
Cited by: 1
References: 61

Abstract

. Broadband spectral measurements in the 351-1600 nm range under self-powered operation (0 V bias) confirmed the wide spectral sensitivity of the devices. At 900 nm, cryogenic treatment significantly enhanced the photodetector performance, yielding ∼20× higher photocurrent, responsivity, and EQE, ∼11.6× higher detectivity, and a ∼91% reduction in NEP compared to the untreated device. These results demonstrate that cryogenic treatment of MWCNTs greatly enhances photocarrier generation and transport, highlighting the Cryo-MWCNT/n-Si heterojunction as a strong contender for high-performance, broadband, self-powered photodetector applications.

Fields of Study & Subjects

Carbon Nanotubes in Composites Diamond and Carbon-based Materials Research Boron and Carbon Nanomaterials Research

Publication details

Journal / source
RSC Advances
Publisher
Royal Society of Chemistry (RSC)
Volume
16
Issue
38
Pages
41441–41458
Publication date
1 January 2026
Language
EN