Active Control of Photon Recycling for Tunable Optoelectronic Materials,Advanced Optical Materials

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Active Control of Photon Recycling for Tunable Optoelectronic Materials
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-01-25 , DOI: 10.1002/adom.201701323
Yunlu Xu _{1,

2} , Elizabeth M. Tennyson _{1,

3} , Jehyung Kim _{1,

2} , Sabyasachi Barik _{1,

4} , Joseph Murray _{1,

2} , Edo Waks _{1,

2} , Marina S. Leite _{1,

3} , Jeremy N. Munday _{1,

2}

Affiliation

Optoelectronic materials are the backbone of today's high‐tech industry. To customize their response, one can directly modify the atomic arrangement, chemical composition, lattice strain, or doping of the semiconductor. However, these processes frequently cause undesirable effects resulting from induced defects. Here, a novel concept is demonstrated to actively tune the optoelectronic response of a material through tailored photon recycling. Without altering the material's intrinsic structure, doping, or temperature, the reabsorption of emitted photons within GaAs is modulated to control its carrier density. This approach is used to create a diode that can change its emission wavelength, a solar cell with improved open‐circuit voltage, and an actively controlled, gate‐free current modulator. These results represent a new platform to enable materials with tailored optoelectronic response based on photonic manipulation rather than semiconductor engineering.

中文翻译：

可调谐光电材料的光子回收的主动控制

光电材料是当今高科技产业的骨干。为了定制它们的响应，可以直接修改原子排列，化学成分，晶格应变或半导体的掺杂。但是，这些过程经常由于感应缺陷而引起不良影响。在这里，展示了一个新颖的概念，可以通过量身定制的光子回收来主动调整材料的光电响应。在不改变材料的固有结构，掺杂或温度的情况下，调制GaAs内发射光子的重吸收以控制其载流子密度。该方法用于创建可以改变其发射波长的二极管，具有改善的开路电压的太阳能电池以及主动控制的无栅极电流调制器。

更新日期：2018-01-25

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