Influence of nitro group substitution at molecular ligand on optical, structural, charge-transport and photovoltaic properties of Sn (II) phthalocyanine

Roy, M.S.; Deol, Y. S.; Janu, Yojana; Gautam, Ajay Kumar; Kumar, Manish; Balraju, P.; Sharma, Ganesh D.

doi:10.1007/s10854-008-9821-z

Cited by 6 publications

(1 citation statement)

References 42 publications

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“…In the memristor, the electric field direction is from Al to Au. Thus, considering the metal work function (Φ Al = 4.28 eV, Φ Au = −4.91 eV), [57,58] hole injection and filling of the trap states from Al into the COF's HOMO level is energetically favorable (Figure S16c, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Overcoming the Unfavorable Effects of “Boltzmann Tyranny:” Ultra‐Low Subthreshold Swing in Organic Phototransistors via One‐Transistor‐One‐Memristor Architecture

Yang,

Yuan,

Wang

et al. 2024

Advanced Materials

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Organic phototransistors (OPTs), as photosensitive organic field‐effect transistors (OFETs), have gained significant attention due to their pivotal roles in imaging, optical communication, and night vision. However, their performance has been fundamentally limited by the Boltzmann distribution of charge carriers, which constrains the average subthreshold swing (SSave) to a minimum of 60 mV/decade at room temperature. In this study, we propose an innovative one‐transistor‐one‐memristor (1T1R) architecture to overcome the Boltzmann limit in conventional OFETs. By replacing the source electrode in an OFET with a memristor, the 1T1R device exploits the memristor's sharp resistance state transitions to achieve an ultra‐low SSave of 18 mV/decade. Consequently, the 1T1R devices demonstrate remarkable sensitivity to photo illumination, with a high specific detectivity of 3.9 × 109 cm W−1Hz1/2, outperforming conventional OPTs (4.9 × 104 cm W−1Hz1/2) by more than four orders of magnitude. The 1T1R architecture presents a potentially universal solution for overcoming the detrimental effects of “Boltzmann tyranny,” setting the stage for the development of ultra‐low SSave devices in various optoelectronic applications.This article is protected by copyright. All rights reserved

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Section: Resultsmentioning

confidence: 99%

Overcoming the Unfavorable Effects of “Boltzmann Tyranny:” Ultra‐Low Subthreshold Swing in Organic Phototransistors via One‐Transistor‐One‐Memristor Architecture

Yang,

Yuan,

Wang

et al. 2024

Advanced Materials

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Atypical Film‐Forming Behavior of Soluble Tetra‐3‐Nitro‐Substituted Copper Phthalocyanine

et al. 2019

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Thin films of metal phthalocyanines (MPc) are known to exhibit excellent physical properties but poorly controlled morphologies. Therefore, the present work seeks to understand the film growth mechanism of a model compound for potentially usable MPc, specifically, copper tetra(3-nitro-5-tert-butyl)phthalocyanine (CuPc*). The Langmuir-Schaefer (LS) technique was applied to prepare a series of CuPc* films under different processing conditions. The film growth was examined by Brewster angle microscopy (BAM) on the water surface and small-angle X-ray scattering (SAXS) from the solid films. Neutron reflectometry (NR) measurements of the water uptake into the films and computer simulation of hydrated CuPc* were performed to substantiate an idea of colloidal MPc-water aggregates as nanoscale precursors of smooth solid films. This idea appears fruitful in terms of materials chemistry.[a] Dr.

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Morphology, structural and optical characterization of electron beam evaporated bromoaluminium phthalocyanine (BrAlPc) thin films

Araghi

Pourteimoor

Riyazi

2013

J Mater Sci: Mater Electron

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Influence of nitro group substitution at molecular ligand on optical, structural, charge-transport and photovoltaic properties of Sn (II) phthalocyanine

Cited by 6 publications

References 42 publications

Overcoming the Unfavorable Effects of “Boltzmann Tyranny:” Ultra‐Low Subthreshold Swing in Organic Phototransistors via One‐Transistor‐One‐Memristor Architecture

Overcoming the Unfavorable Effects of “Boltzmann Tyranny:” Ultra‐Low Subthreshold Swing in Organic Phototransistors via One‐Transistor‐One‐Memristor Architecture

Atypical Film‐Forming Behavior of Soluble Tetra‐3‐Nitro‐Substituted Copper Phthalocyanine

Morphology, structural and optical characterization of electron beam evaporated bromoaluminium phthalocyanine (BrAlPc) thin films

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