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Preface

Almighty Allah revealed the Holy Qur’an for guidance of the mankind. This guidance cannot be acquired without pondering over the meanings of this book. Different scholars dedicated their lives for understanding and then spreading the message of the Almighty Allah. This book is a study of the work on translations and tafasīr of Holy Qur’an. In Sub-Continent, a large number of religious scholars dedicated themselves for the service of Holy Qur’an.  Their vision was broad and they elaborated meanings of the Holy Qur’an according to their own mental approach They were appreciated and criticized by scholars of different sects of the society. There is a dire need to understand and spread the teachings of the Holy book. Hopefully this work will encourage the readers to be aware of the research of theologians. Shāh Walī Allāh is the most important religious figure of Sub-Continent. He and his sons played very important role in spreading the message of Qur’an. Brief services of this family are elaborated in this book. Scholars of Sindh have contributed in writing translations and commentaries of Holy Qur’an. Some of their contributions are highlighted. The reader will also find introduction of well-known translations and tafasīr of the 20th century. But this introduction is restricted to the Sub-continent. Through this book. the writer wants only to motivate people for learning the Holy Book. It is not claimed that services of all the Qur’anic theologians of Sub-continent are highlighted. This is a matter of pride for the author that things are discussed without any prejudice. The readers are the best judges. Suggestions regarding the improvement will be welcomed. I am thankful to Prof. Dr. Shams-ul-Basar and Dr. Zohaib Ahmad for guidance and Co-operation regarding the publication of this work. May Allah Almighty shower blessings on them. If...

Beyond Ritualism: Impact and Implications of Ḥajj on the Society of Pakistan

Ḥajj―an annual Islamic congregation―is a supreme manifestation of Faith (Imān) in which muslims assemble to pronounce explicitly their subservience and loyalty to Almighty Allah alone. Besides freeing themselves from the squalor of Shirk, Muslims satiate their souls with the feelings of ‘Faith’ and ‘Unity.’ This fact is purely accomplished when the Muslims shed off their outer difference by donning the dress of unity (Iḥrām). Ḥajj is a perfect blend between ‘Creator’ and ‘creature’, ‘soul’ and ‘spirit’ on the one hand and an enduring and invaluable expression physically, socially, and materially on the other. From this pragmatic Institution, Pakistan―one of the premier countries of the Islamic world―can derive unprecedented benefits politically, socially, and economically. One of the important objectives of the paper is to describe the significance of Ḥajj to the people of Pakistan. In so doing, the paper examines and explores, objectively and analytically, the institution of Ḥajj and its implications on the Muslim world, particularly Pakistan. The first section of the paper, “Ḥajj―At a Glance”, presents meaning and historical background of Ḥajj. The second section “Revitalizing the Ḥajj”, besides presenting the revitalization of the Institution by the final Messenger (peace be upon him) also gives an overview of some of the very important rituals to be realized (during Ḥajj). The subsequent sections, “Socio-Economic Dimension of Ḥajj” and “Ḥajj―Implications and Impact on the Society of Pakistan”, describe respectively the socio-economic impact and leverage of the Ḥajj on the Muslim world in general and on Pakistan in particular. The study is followed by “Conclusion” wherein it has been argued that the Ḥajj can bring an immense transformation and positivity in a country if its sweetness is sought in all earnestness.

Electronic and Optoelectronic Studies of Organic Semiconductors

Organic semiconductors have made inroad into many area of devices which was formally dominated by inorganic semiconductors because of their wide variety of electronic and optoelectronic properties. They being low cost, light weight and low temperature processing materials provide opportunities to fabricate the variety of devices, such as, solar cells, field effect transistors, lasers, light emitting diodes, sensors, photo detectors, smart windows, large area displays, e-paper, etc. The material manipulation, low cost fabrication techniques and the emerging ideas are bringing about much improved performances in the organic electronic devices. Most of the earlier studies have been reported on the p-type organic semiconductors and little is known about n-types. In the development of future organic electronic industry, all organic complementary circuits are not possible without the availability of both p- and n-type organic semiconductors and data is required on the junction properties and mobility studies of these materials. Plenty of data is available on the junction diodes of p-type organic semiconductors but little is known on the n-type organic semiconductors based junction devices and mobility investigations. In this dissertation, the n-type organic semiconducting materials formyl- TIPPCu(II), N,N ́-di-n-heptyl-2,3:6,7-anthracenetetracarboxydiimide (ADCI7) and N,N ́- di-n-octyl 2,3,6,7 anthracenetetracarboxydiimide (ADCI8) have been investigated as active organic materials for their potential application in organic electronic devices. Using organic semiconductor formyl-TIPPCu(II), junction diode, temperature, light and humidity sensors have been fabricated, while ADCI7 and ADCI8 have been used for the fabrication of n-channel organic thin film transistors. To investigate junction properties of formyl-TIPPCu(II) organic semiconductor, fabrication of Ag/formyl-TIPPCu(II)/p-Si heterojunction diode was undertaken and it was made successfully. Its temperature dependent electrical properties are reported. The values of series resistance, ideality factor, zero bias barrier height are observed strongly dependent on temperature. The series resistance and ideality factor decease while the zero bias barrier height increases with the rise in temperature. viiThe surface type Ag/formyl-TIPPCu(II)/Ag humidity sensors has been fabricated to study the effects of changing relative humidity on the electrical parameters and their frequency dependant responses. The values of capacitance and resistance of the sensors were measured at different humidity levels at frequencies of 1 kHz, 10 kHz and 100 kHz. An increase in capacitance and decrease in resistance were observed during the rise of relative humidity from 45 to 95% RH. The hysteresis response of these humidity sensors was also studied at the frequency of 1 kHz. Effects of temperature and light are studied on the capacitance and resistance of the Au/formyl-TIPPCu(II)/Au device. The relative capacitance of the fabricated sensor increased by 4.3 times by rising temperature from 27 to 187 0 C, while under illumination up to 25000 lx, the capacitance of the Au/formyl-TIPPCu(II)/Au photo capacitive sensor increased by 13.2 times as compared to dark conditions. ADCI7 and ADCI8 were used to fabricate n-channel organic thin film transistors (OTFTs) on oxidized silicon wafers. To get the high performance of the devices and to avoid the trapping of charge carriers, the dielectric surface were modified by developing the buffer layer of PMMA or by self assembly monolayer (SAM) of HMDS. The OTFTs exhibited high charge mobility of the order of 10 -2 cm 2 V -1 S-1 (ADCI7) and 10 -3 cm 2 V -1 S - 1 (ADCI8) with the on/off ratio of the order of 10 4 showing the appreciable enhancement in the field effect properties of these materials as compared to the previously reported researches for the same family of materials. ADCI7 is introduced as new compound for high mobility n-channel OTFTs.
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