NDLI: Scanning Tunneling Microscope and Spectroscope on Organic–Inorganic Material Heterojunction

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Scanning Tunneling Microscope and Spectroscope on Organic–Inorganic Material Heterojunction

Content Provider	Scilit
Author	Khan, Sadaf Bashir Lee, Shern Long
Copyright Year	2021
Description	The operating mechanism of photovoltaic devices (PVs) comprises photogeneration of excitons, corresponding dissociation, and transference of holes and electrons to the opposite electrodes [1]. The effectiveness of these stages takes place in a sequence and can be influenced by active materials, exciton dissociation, which needs a junction in the form of a metal/organic or an organic/organic interface. The narrative of PVs symbolizes a junction between a stratum of donor and a stratum of acceptor molecules [2] such as a quantum dots (QDs) [QDs in a conjugated polymer matrix to form a hybrid bulk heterojunction (BHJ)] or BHJ [between electron-donor and electron-acceptor molecules/polymers] [3,4]. Generally, heterojunction is defined as a contact of two materials having different electrical characteristics. These materials include polymers, elements, tiny molecules, or composites. Commonly, in a heterojunction, a donor is electron-rich than the acceptor. When the donor is excited via external stimuli such as light or electric pulse, it generates a negative charge in the acceptor, whereas the donor turns into a positive charge. The positive charges transfer via hole hopping and the negative charges via electron hopping, which takes place during charge transfer between molecules. Book Name: Optoelectronic Organic–Inorganic Semiconductor Heterojunctions
Related Links	https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9780367348175-4&type=chapterpdf
DOI	10.1201/9780367348175-4
Language	English
Publisher	Informa UK Limited
Publisher Date	2021-01-19
Access Restriction	Open
Subject Keyword	Book Name: Optoelectronic Organic–inorganic Semiconductor Heterojunctions Atmospheric Sciences Heterojunction Charge Hopping Stratum Electric Dissociation Exciton
Content Type	Text
Resource Type	Chapter

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