Electronic Mechanism of In Situ Inversion of Rectification Polarity in Supramolecular Engineered Monalayer

Extra Form
author Hyo Jae Yoon
Homepage https://hyojaeyoon.wixsite.com/omml
journal Journal of the American Chemical Society
?

Shortcut

PrevPrev Article

NextNext Article

ESCClose

+ - Up Down Comment Print

This paper describes polarity inversion in molecular rectification and the related mechanism. Using supramolecular engineered, ultrastable binary mixed self-assembled monolayer (SAM) composed of organic molecular diode (SC11BIPY) and inert reinforcement molecule (SC8), we probed a rectification ratio (r)-voltage relationship in an unprecedently wide voltage range (up to |3.5 V|) with statistical significance. We observed positive polarity in rectification at |1.0 V| (r = 107), followed by disappearance of rectification at ~|2.25 V|, and then eventual emergence of new rectification with the opposite polarity at ~|3.5 V| (r = 0.006; 1/r = 162). The polarity inversion occurred with a span over four orders of magnitude in r. Low-temperature experiments, electronic structure analysis, and theoretical calculation revealed that the unusually wide voltage range permits access to molecular orbital energy levels, inaccessible in the traditional narrow voltage regime, inducing the unprecedented in-situ inversion of polarity. 

 

 

그림1-.jpg

https://pubs.acs.org/doi/10.1021/jacs.2c02391

 

그림1--.jpg


Articles

2 3 4 5 6 7 8

Designed by sketchbooks.co.kr / sketchbook5 board skin

나눔글꼴 설치 안내


이 PC에는 나눔글꼴이 설치되어 있지 않습니다.

이 사이트를 나눔글꼴로 보기 위해서는
나눔글꼴을 설치해야 합니다.

설치 Cancel

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5