奈米材料在有機太陽能電池之應用回顧

Review on the applications of nanomaterials in polymer solar cell

王麒傑(Chi-Jie Wang)

指導教授 ： 陳俊維

國立臺灣大學/工學院/材料科學與工程學研究所/碩士(2012年)

https://doi.org/10.6342/NTU.2012.10875

摘要

有機無機混參太陽能電池導入了無機奈米材料高電子傳輸率及高電負度的特性 ,改善了高分子遷移率低的缺點, 並增加紅外光吸收範圍。
但是,由於無機奈米材料的低溶解度,集中分佈導致不連續的傳輸路徑,有機無機界面載子分離受無機奈米材料表面不易導電的ligands及高復合率的影響使其效率沒有預期來的好.
本篇論文從光電流產生過程的角度來看影響有機無機混參太陽能電池效率的因素,探討morphology與無機奈米材料表面性質、幾何形狀/尺寸及維度的關係。
並探討如何藉由控制無機奈米材料表面電子性質及奈米結構來改善morphology以增進效率,我們討論如何修飾有機無機界面狀態,及利用無機奈米材料建構連續電子傳輸路徑,討論core shell structure來解決有機無機界面接觸面積小的問題，回顧及討論無機奈米材料對有機無機混參太陽能電池的限制及影響。
最後總結近來有機無機混參太陽能電池的發展現況,比如利用TiO2,ZnO,CdSe作為受體和電子傳輸介質並修飾其介面來改善載子分離，並形成二維、三維奈米結構來改善載子傳輸以及介紹二維奈米碳材graphene、graphene oxide作為透明電極、受體及電洞傳輸層在有機無機混參太陽能電池的應用。

關鍵字

有機無機混參太陽能電池 ； 無機奈米材料電子性質 ； 奈米結構 ； 石墨烯

並列摘要

Due to introduction of inorganic nano-semiconductor, organic-inorganic hybrid solar cell combines with high electron mobility and affinity to improve low mobility of conducting polymer and extended absorption range in red region.
However, the efficiency are limited by aggregation due to low solubility of inorganic nanocrystal in conducting polymer matrix and inefficient charge transfer between organic-inorganic interface due to insulating surface ligands capping on inorganic nanocrystal.
In this essay, we study factors affecting efficiency from photocurrent generation process and research relationship between inorganic surface capping ligands/geometry/dimension and morphology and study how to control inorganic semiconductor surface properties and nanostructure to improve morphology and device performance.
We discuss how to modify organic-inorganic interface and how to construct continuous electron transport pathway and discuss core shell structure to solve inefficient charge separation due to low interface area at interface, then review and discuss effect of inorganic nano-semiconductor on the organic-inorganic hybrid solar cell.
Finally we sum up recent developments of organic-inorganic hybrid solar cell such as taking TiO2,ZnO,CdSe as electron acceptor and transport medium and modify the interface to improve charge separation and forming 2D、3D and prescribed nanostructure to improve charge transport and introduce 2D nano-carbon material graphene、graphene oxide as transparent electrode、electron acceptor and hole transport layer and discuss application in organic0inorganic hybrid solar cells.

並列關鍵字

Organic-inorganic Solar Cell ； Inorganic Semiconductor Material Electronic Properties ； Nanomaterial ； Graphene

參考文獻

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