NER: Molecular Controlled Electronic Devices

该提案是针对NSE、NSF-0019而收到的。这项研究探索了一种利用有机分子的极化响应来增加电子电路中逻辑运算密度的新方法。这种方法的一个关键要素是使用分子控制半导体电阻器(MOCSER)将逻辑运算的结果转换为电流。这一方案的积极属性是较少的分子分解，不太严重的统计波动，以及与当今微电子技术的接口能力。MOCSER是一种特殊设计的无栅极金属氧化物半导体场效应晶体管。取代晶体管上的金属栅，有机分子将以化学方式结合到器件的栅氧化物上。通过极化这些有机分子，可以对晶体管的源极和漏极之间的电流进行调制。这项工作将从演示MOCSER对电压控制的分子极化的响应开始。随着这一初始阶段工作的成功，拟议的工作将包括两个部分：纳米光刻和演示分子模板。为了证明“固态”器件的可行性，将制造和测试新一代MOCSER，其中栅氧化区通过分子连接到金属焊盘。纳米光刻将在康奈尔纳米制造设施与魏兹曼小组的专业知识合作下进行。同时，我们将使用互补DNA链的模板，一条连接到MOCSER的栅区，另一条连接到AFM尖端，来表征分子的自组装和通过非共价接触的电压控制的极化响应。这项工作的成功完成将为利用分子极化执行逻辑功能并将分子极化转换为固态电子器件中的电流奠定基础。

This proposal was received in response to NSE, NSF-0019. The proposed research explores a new approach for increasing the density of logical operations in electronic circuits by using the polarization response of organic molecules. A key element of this approach is to use a Molecular Controlled SEmiconductor Resistor (MOCSER) to transduce the outcome of the logical operation into a current. Positive attributes of this scheme are less molecular decomposition, less severe statistical fluctuations and an ability to interface with today's microelectronics. The MOCSER is a specially designed and gateless metal-oxide semiconductor field effect transistor. In place of the metal gate on the transistor, organic molecules will be chemically bonded to the device's gate oxide. By polarizing these organic molecules the current flow between the source and drain electrodes of the transistor can be modulated. The work will begin by demonstrating the MOCSER's response to a voltage-controlled, molecular polarization. With the success of this initial phase of work the proposed effort will include two parts: nanolithography and demonstrating olecular templating. To demonstrate the feasibility of a 'solid-state' device a new generation of the MOCSER, in which the gate oxide region is connected to metal pads through a molecule, will be fabricated and tested. The nanolithography will be performed at the Cornell Nanofabrication Facility, in collaboration with the expertise from the Weizmann group . In parallel, we will use the templating of complementary DNA strands, one which is tethered to the gate region of the MOCSER and the other to the AFM tip, to characterize the self-assembly of molecules and voltage-controlled polarization response through noncovalent contacts. Successful completion of this work should set the stage for using molecular polarization to perform logic functions and transducing the molecular polarization into current in a solid-state electronic device.