វិទ្យាស្ថានគរុកោសល្យរាជធានីភ្នំពេញ

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Article

Development of a Handmade Conductivity Measurement Device for a Thin-Film Semiconductor and Its Application to Polypyrrole

ការអភិវឌ្ឍឧបករណ៍វាស់ចរន្តអគ្គិសនីធ្វើដោយដៃសម្រាប់សារធាតុពាក់កណ្តាលចម្លងស្រទាប់ស្តើង និងការអនុវត្តលើប៉ូលីភីរ៉ុល (Polypyrrole)

Affiliations (2)
  1. 1. Phnom Penh Teacher Education College(វិទ្យាស្ថានគរុកោសល្យរាជធានីភ្នំពេញ), Phnom Penh, Cambodia
  2. 2. Okayama University(សាកលវិទ្យាល័យអូកាយ៉ាម៉ា), Okayama, Japan

Corresponding author: Set Seng, Masakazu Kita

Cite this: Journal of Chemical Education 2014, 91 (11), 1971–1975

DOI10.1021/ed500287q (opens doi.org in a new tab)

LicensedPublished 11 November 201425 views

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Abstract

English abstract

The four-point probe method is the standard technique for precisely measuring the electrical conductivity of semiconductor thin films such as polypyrrole (Ppy); however, commercial probe stations and electrometers are typically too expensive or complex for classroom laboratory instruction. In this work, an inexpensive, convenient, handmade conductivity measurement device was developed and tested for educational use. The device enables students to reliably determine the electrical conductivity of polypyrrole thin films, providing practical hands-on experience in semiconductor materials and polymer chemistry in high school and introductory undergraduate settings.

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About the Authors

  • Set Seng

    សិត សេង

    Corresponding author

    Associate Professor, Director

    Phnom Penh Teacher Education College, Phnom Penh, Cambodia · Okayama University, Okayama, Japan

    Dr. Set Seng earned his Master’s degree in Science Education (Chemistry) in 2007 and his Doctor of Philosophy in Education (Science Education) in 2016, both in Japan. He is currently the Director of Phnom Penh Teacher Education College (PTEC), a higher education institution responsible for both pre-service and in-service teacher education and training for primary and lower secondary schools in Cambodia. With over 25 years of experience in the education sector, Dr. Seng has been actively involved in developing teachers’ capacity to improve the quality of teaching and learning in classrooms at both the primary and secondary levels. His research interests include teacher professional development, effective classroom practices, and hands-on science teaching materials.

    Read this biography in Khmer

    បណ្ឌិត សិត សេង បានបញ្ចប់ថ្នាក់អនុបណ្ឌិតផ្នែកអប់រំវិទ្យាសាស្ត្រ (គីមីវិទ្យា) ក្នុងឆ្នាំ២០០៧ និងថ្នាក់បណ្ឌិតផ្នែកអប់រំ (អប់រំវិទ្យាសាស្ត្រ) ក្នុងឆ្នាំ២០១៦ នៅប្រទេសជប៉ុន។ បច្ចុប្បន្ន លោកជានាយកនៃវិទ្យាស្ថានគរុកោសល្យរាជធានីភ្នំពេញ (វ.គ.ភ - PTEC) ដែលជាគ្រឹះស្ថានឧត្តមសិក្សាទទួលបន្ទុកបណ្តុះបណ្តាល និងវិក្រឹតការគរុសិស្ស-គរុនិស្សិតកម្រិតបឋមសិក្សា និងមូលដ្ឋាននៅកម្ពុជា។ ជាមួយនឹងបទពិសោធន៍ជាង ២៥ ឆ្នាំក្នុងវិស័យអប់រំ បណ្ឌិត សិត សេង បានចូលរួមយ៉ាងសកម្មក្នុងការអភិវឌ្ឍសមត្ថភាពគ្រូបង្រៀន ដើម្បីលើកកម្ពស់គុណភាពនៃការបង្រៀន និងរៀនក្នុងថ្នាក់រៀនទាំងកម្រិតបឋម និងមធ្យមសិក្សា។ ការស្រាវជ្រាវរបស់លោកផ្តោតលើការអភិវឌ្ឍវិជ្ជាជីវៈគ្រូបង្រៀន គរុកោសល្យ និងការអនុវត្តក្នុងថ្នាក់រៀនប្រកបដោយប្រសិទ្ធភាព និងសម្ភារៈឧបទេសបង្រៀនវិទ្យាសាស្ត្រជាក់ស្តែង។

  • Shinpei Tomita

    Okayama University, Okayama, Japan

  • Yoshihiko Inada

    Okayama University, Okayama, Japan

  • Masakazu Kita

    Corresponding author

    Okayama University, Okayama, Japan

Published in

Journal of Chemical Education

Vol. 91, No. 1111 November 2014

Publication information

Type
Article
Published
11 November 2014
Pages
1971–1975
Publisher
American Chemical Society
Language
English
License
© 2014 American Chemical Society