Realization of diode structures on paper: An example of papertronics

IF 2.4 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Current Applied Physics Pub Date : 2024-10-05 DOI:10.1016/j.cap.2024.10.001

Rajkumar Dey , Shamima Hussain , A.K. Pal

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Abstract

A possibility of fabricating paper/Ag/CdTe/Au Schottky and paper/Ag/CdTe/CdS/In p-n junction diode structures has been demonstrated here. Ag (∼5 μm), CdTe (∼50 μm), CdS (∼45 μm), Au and In dots (∼5 μm) were deposited on the cellulose using appropriate stainless-steel masks to obtain the requisite diode structures. The band gaps of the CdTe and CdS layers were ∼1.55 eV and ∼1.45 eV, respectively. Current-voltage (I-V) characteristics of the paper/Ag/CdTe/Au Schottky and paper/Ag/CdTe/CdS/In p-n junction diodes were recorded at room temperature. Ideality factor (n), series resistance (R_S) and barrier height (φ_b) of the respective diodes were computed. The barrier height (φ_b) and ideality factor (n) computed from current-voltage characteristics were found to be 0.74 eV and 1.8, respectively at room temperature. Series resistance and φ_b computed by using Cheung-Cheung method were ∼177 Ω and ∼0.45 eV, respectively. They are comparable to the resistance derived from a modified Norde method. The fabricated diodes were reproducible and stable for a few months. These diode structures were tested in an open environment at room temperature and showed no noticeable ageing effect.

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在纸上实现二极管结构：纸上电子学的一个实例

本文展示了制造纸/银/碲化镉/金肖特基二极管和纸/银/碲化镉/镉硒/铟 p-n 结二极管结构的可能性。使用适当的不锈钢掩膜在纤维素上沉积银（5 μm）、碲化镉（50 μm）、硒化镉（45 μm）、金和铟点（5 μm），以获得所需的二极管结构。碲化镉层和硒化镉层的带隙分别为 1.55 eV 和 1.45 eV。室温下记录了纸/银/CdTe/金肖特基二极管和纸/银/CdTe/CdS/铟 p-n 结二极管的电流-电压（I-V）特性。计算了各二极管的理想因子 (n)、串联电阻 (RS) 和势垒高度 (φb)。根据电流-电压特性计算得出的势垒高度（φb）和理想化系数（n）在室温下分别为 0.74 eV 和 1.8。用 Cheung-Cheung 方法计算出的串联电阻和φb 分别为 177 Ω 和 0.45 eV。这两个数值与改进 Norde 方法得出的电阻值相当。制作的二极管在几个月内都是可重复和稳定的。这些二极管结构在室温下的开放环境中进行了测试，没有显示出明显的老化效应。

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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.